[SG21 Final Report, March 2005]{.underline}

*NEA/WPEC-21*

*International Evaluation Co-operation*

*Volume 21*

ASSESSMENT OF NEUTRON CROSS SECTION EVALUATIONS FOR THE BULK OF FISSION
PRODUCTS

*A report by the Working Party*

*on International Evaluation Co-operation*

*of the NEA Nuclear Science Committee*

CO-ORDINATOR AND MONITOR

*P. Obložinský*

*National Nuclear Data Center*

*Brookhaven National Laboratory (BNL)*

*USA*

NUCLEAR ENERGY AGENCY

ORGANISATION FOR ECONOMIC CO-OPERATION AND DEVELOPMENT

FOREWORD

A Working Party on International Evaluation Co-operation was established
under the sponsorship of the OECD/NEA Nuclear Science Committee (NSC) to
promote the exchange of information on nuclear data evaluations,
validation, and related topics. Its aim is also to provide a framework
for co-operative activities between the members of the major nuclear
data evaluation projects. This includes the possible exchange of
scientists in order to encourage co-operation. Requirements for
experimental data resulting from this activity are compiled. The working
party determines common criteria for evaluated nuclear data files with a
view to assessing and improving the quality and completeness of
evaluated data.

The parties to the project are: ENDF (United States), JEFF/EFF (NEA Data
Bank Member countries) and JENDL (Japan). Co-operation with evaluation
projects of non-OECD countries, specifically the Russian BROND and
Chinese CENDL projects, are organized through the Nuclear Data Section
of the International Atomic Energy Agency (IAEA).

The following report has been issued by Subgroup 21, which was charged
with the task to assess neutron cross-section evaluations for fission
products. The Subgroup performed a considerable job, reviewed and
assessed neutron-induced cross sections in all major evaluated nuclear
data libraries. As a result, the Subgroup provided recommendations for
best evaluations for 218 fission products.

The opinions expressed in this report are those of the authors only and
do not necessarily represent the position of any Member country or
international organization. This report is published on the
responsibility of the Secretary-General of the OECD.

Members of Subgroup 21

**M. Herman, S. Mughabghab, P. Obložinský**

Brookhaven National Laboratory (BNL)

United States

# I. Sirakov

> Brookhaven National Laboratory and IRNNE Sofia
>
> United States and Bulgaria

# J. Chang

Korea Atomic Energy Research Institute (KAERI Daejeon)

Korea

# T. Nakagawa, K. Shibata

Japan Atomic Energy Research Institute (JAERI Tokai-mura)

Japan

# M. Kawai

KEK Tsukuba

Japan

# A.V. Ignatyuk

Institute of Physics and Power Engineering (IPPE Obninsk)

Russia

# V.G. Pronyaev, V. Zerkin

International Atomic Energy Agency (IAEA Vienna)

Austria

**Shen Qingbiao, Zhuang Youxiang**

China Institute of Atomic Energy (CIAE Beijing)

China

**TABLE OF CONTENTS**

**SUMMARY**......\............................................................................7

1.  **Introduction**................................\.............................................9

2.  **Infrastructure for review and
    assessment**......................................10

3.  **Review
    methodology**....................................\............................12

4.  **Reviews**................................................................................14

5.  **Summary
    recommendations**.........\..............................................15

6.  **Conclusions**.........\..................................................................25

**References**.................................................................................26

**APPENDIX A: *Inter-comparison Plots for
Ru-102***..........................\........27

**APPENDIX B: *Review Report on
Ru-102***............................................33

##   {#section .unnumbered}

## SUMMARY

Subgroup 21 reviewed neutron cross-section evaluations for a complete
set of materials in the fission products range as available in major
evaluated nuclear data libraries. For the purposes of the present
project fission products were defined as materials with Z = 31 -- 68.
Considered libraries were ENDF/B-VI.8, JENDL-3.2 (or JENDL-3.3), JEF-2.2
(or JEFF 3.0), BROND-2 and CENDL-3.0.

Inter-comparison of evaluated data in 5 libraries along with comparison
with experimental data retrieved from the experimental reaction database
EXFOR was prepared. Altogether around 1900 plots, in general 9 plots per
material were prepared and made available on [www.nndc,bnl.gov/sg21]().

Subgroup 21 included 10 active reviewers, making it possible to review
each material individually within relatively short period of time of 3
years. Low energy region (thermal point and resonances) and fast neutron
region were reviewed separately. Taken into account was history and
source/authors of evaluation, graphical inter-comparison of all
evaluations along with experimental data, and evaluation methodology.
For each material a review report was written, describing procedure,
summarizing findings and recommendations of the best evaluation for the
low energy and for the fast energy regions. No attempt was made to
consider data validation and integral measurements to assess the quality
of evaluations.

Review reports were discussed at the Workshop held on April 19-23, 2004
in Brookhaven National Laboratory. The Workshop reached final
recommendations for the best evaluations for all materials. In addition
to the 211 currently available materials, recommendations were made on 7
new materials.

Altogether, Subgroup 21 produced recommendations for 218 materials in
the fission product range. It is a task for the follow-up Subgroup
(SG23) to use these recommendations and to prepare actual fission
product library.

It is assumed that national projects will use these recommendations, as
well as the library, as the source for the bulk of fission product
materials (\~180). It is assumed that one would resort to other criteria
for selection of fission products considered to be priority for specific
applications (\~40 materials).

ASSESSMENT OF NEUTRON CROSS SECTION EVALUATIONS FOR THE BULK OF FISSION
PRODUCTS

1.  **Introduction**

Neutron cross sections of fission products (FPs) constitute a
considerable part of major evaluated nuclear data libraries. For
instance, in ENDF/B-VI release 8 (October 2001), there are 196 materials
that fall into the range of fission products (defined as Z = 31 - 68).
This should be compared with the total of 328 materials included in
ENDF/B-VI.

Often, evaluations of many of the fission products have not been revised
for a long period of time. As a consequence, analysis of almost 200
fission product evaluations in ENDF/B-VI file reveals the following
situation \[1\]:

*•* 65% evaluations have been performed more than 25 years ago,

*•* 55% evaluations have isotropic neutron elastic angular distribution,

• 30% evaluations use point-wise data in neutron resonance region, and

• 30% evaluations use single-level Breit-Wigner representation for
neutron resonances.

In April 2001, Subgroup 21 (SG21) has been established by the Working
Party on International Evaluation Co-operation (WPEC) to address this
problem. The mission of SG21 was to assess neutron cross sections for
fission products by reviewing all available evaluations, making use of
experimental data in the EXFOR (CSISRS) library and considering adopted
evaluation methodology. This procedure was expected to yield useful
results for the bulk of fission products. From the very beginning, it
was understood that such a procedure is likely to be insufficient for
the most important fission products (20-40 nuclides, depending on the
application), where validation methods should be adopted.

SG21 represents the second WPEC project devoted to fission product
cross-sections. In 1998, H. Gruppelaar et al completed a work under
Subgroup 17 on the Status of Pseudo-Fission-Product Cross-Sections for
Fast Reactors \[2\]. The results of SG17 partly guided the work of SG21.

In the 1st year of the project, SG21 established its review methodology
and reviewed initial set of 18 materials. In the 2^nd^ year, 89 more
materials were reviewed. Then, in the 3^rd^ year remaining 104 materials
were reviewed and final recommendations were made for all 211 materials.

The present report summarizes the results obtained by SG21. The Subgroup
was established in April 2001 and completed its work in May 2004.

2.  **Infrastructure for review and assessment**

A key part of the SG21 activity was reviewing fission product
cross-section evaluations and assessment of the best evaluations. To
perform a massive task of reviewing more than 200 materials, appropriate
infrastructure for reviews had to be developed. To this end, SG21
webpage was created, allowing direct access to documents, evaluated
libraries and inter-comparisons plots.

**SG21 webpage**. The page was created to facilitate review of FP
evaluations, see [www.nndc.bnl.gov/sg21](http://www.nndc.bnl.gov/sg21).
In addition to background information on the project and all documents
about SG21 activity, it offers links to available, ongoing or planned
evaluations, and provides access to graphical inter-comparison as well
as review report for each FP material.

Some of the documents made available to SG21 reviewers are listed below.
They were used in the reviewing process and in prioritization of SG21
work.

[Thermal Neutron Capture Cross Sections, Resonance Integrals and
g-Factors]{.underline} This important report contains new re-evaluations
by S. Mughabghab (BNL) \[3\], February 2003. Of particular importance
are new thermal capture cross sections for elements and isotopes with
atomic charge numbers Z = 1-83.

[Deficiencies of Neutron Cross-Section Evaluated Files for Fission
Products]{.underline} Summary of typical deficiencies as prepared by V.
Pronyaev (IAEA Vienna), March 2003.

[Priority List of Fission Products]{.underline} The list was taken from
the Final Report of the WPEC Subgroup 17 \[2\] (see Table 5.1 at pp.
28-30). SG17 prioritized fission products by one-group cross sections
for capture in descending importance, determined by the product of the
cross section and the yield of the nuclide in fast reactors. Shown in
Table 1 is the list of 211 fission products plus 7 new materials, with
first 40 nuclides and second 45 nuclides as prioritized by SG17.

**Table 1. List of 218 fission products, with** **priorities identified
by SG17: underscored** **= first** **40 nuclides, italics**
**underscored** **= second** **45 nuclides**.

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

**31-Ga- 69, 71**

**32-Ge- 70, 72,** **73, 74, 76**

**33-As- 75**

**34-Se- 74, 76,** **77, 78, 79, 80, 82**

**35-Br- 79,** ***[81]{.underline}***

**36-Kr- 78, 80, 82,**
***[83](../../../../../../../../C:/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Temporary%20Internet%20Files/OLK1A2C/Documents%20and%20SettingscataldoLocal%20SettingsTemporary%20Internet%20FilesO%20),***
***[84]{.underline}*, 85, 86**

**37-Rb- 85, 86,** ***[87]{.underline}***

**38-Sr- 84, 86, 87, 88, 89, 90**

**39-Y** **- 90, 90,** ***[91]{.underline}***

**40-Zr- 90,** ***[91]{.underline}*,** ***[92]{.underline}*,**
**[93]{.underline},** ***[94]{.underline}*,**
**[95](../../../../../../../../C:/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Temporary%20Internet%20Files/OLK1A2C/Documents%20and%20SettingscataldoLocal%20SettingsTemporary%20Internet%20FilesO%20),**
**[96]{.underline}**

**41-Nb- 93, 94,** **[95]{.underline}**

**42-Mo- 92, 94,** **[95]{.underline}, 96,**
**[97](../../../../../../../../C:/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Temporary%20Internet%20Files/OLK1A2C/Documents%20and%20SettingscataldoLocal%20SettingsTemporary%20Internet%20FilesO%20),**
**[98]{.underline},** ***[99]{.underline}*,** **[100]{.underline}**

**43-Tc-** **[99]{.underline}**

**44-Ru- 96, 98, 99,** ***[100]{.underline}*,** **[101]{.underline},**
**[102](../../../../../../../../C:/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Temporary%20Internet%20Files/OLK1A2C/Documents%20and%20SettingscataldoLocal%20SettingsTemporary%20Internet%20FilesO%20),**
**[103]{.underline},** **[104]{.underline}, 105,** **[106]{.underline}**

**45-Rh-[103]{.underline},** ***[105]{.underline}***

**46-Pd-102,** ***[104]{.underline}*,** **[105]{.underline},**
**[106]{.underline}, 1[07]{.underline},**
**[108](../../../../../../../../C:/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Temporary%20Internet%20Files/OLK1A2C/Documents%20and%20SettingscataldoLocal%20SettingsTemporary%20Internet%20FilesO%20),**
***[110]{.underline}***

**47-Ag-107,** **[109]{.underline}, 110m,111**

**48-Cd-106, 108, 110,** ***[111]{.underline}*,**
***[112]{.underline}*,** ***[113]{.underline}*, 114,
115m,*[116]{.underline}***

**49-In-113,** ***[115]{.underline}***

**50-Sn-112, 113, 114, 115, 116, 117, 118, 119, 120, 122, 123, 124, 125,
126**

**51-Sb-*[121]{.underline}*, 123, 124,**
**[*125*](../../../../../../../../C:/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Temporary%20Internet%20Files/OLK1A2C/Documents%20and%20SettingscataldoLocal%20SettingsTemporary%20Internet%20FilesO%20),
126**

**52-Te-120, 122, 123, 124, 125, 126, 127m,*[128]{.underline}*,**
***[129m]{.underline}*,*[130]{.underline}*, 132**

**53-I** **-[127]{.underline},** **[129]{.underline}, 130,**
***[131]{.underline}*,**
[**135**](../../../../../../../../C:/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Temporary%20Internet%20Files/OLK1A2C/Documents%20and%20SettingscataldoLocal%20SettingsTemporary%20Internet%20FilesO%20)

**54-Xe-123, 124, 126, 128, 129, 130,**
**[131](../../../../../../../../C:/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Temporary%20Internet%20Files/OLK1A2C/Documents%20and%20SettingscataldoLocal%20SettingsTemporary%20Internet%20FilesO%20),[132](../../../../../../../../C:/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Temporary%20Internet%20Files/OLK1A2C/Documents%20and%20SettingscataldoLocal%20SettingsTemporary%20Internet%20FilesO%20),*[133]{.underline}*,[134]{.underline},135,136**

**55-Cs-[133]{.underline}, 134,** **[135]{.underline}, 136,**
***[137]{.underline}***

**56-Ba-[130](../../../../../../../../C:/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Temporary%20Internet%20Files/OLK1A2C/Documents%20and%20SettingscataldoLocal%20SettingsTemporary%20Internet%20FilesO%20),**
**[132](../../../../../../../../C:/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Temporary%20Internet%20Files/OLK1A2C/Documents%20and%20SettingscataldoLocal%20SettingsTemporary%20Internet%20FilesO%20),
133, 134, 135, 136, 137, 138,** ***[140]{.underline}***

**57-La-138,** **[139]{.underline}, 140**

**58-Ce-136, 138, 139,** ***[140]{.underline}*,** **[141]{.underline},**
***[142]{.underline}*, 143,**
[***144***](../../../../../../../../C:/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Temporary%20Internet%20Files/OLK1A2C/Documents%20and%20SettingscataldoLocal%20SettingsTemporary%20Internet%20FilesO%20)

**59-Pr-[141]{.underline}, 142,** ***[143]{.underline}***

**60-Nd-142,** **[143]{.underline},** ***[144]{.underline}*,**
**[145]{.underline},** **[146]{.underline},** ***[147]{.underline}*,**
**[148]{.underline},** ***[150]{.underline}***

**61-Pm-[147]{.underline},** ***[148]{.underline}*,
148m,*[149]{.underline}*, 151**

**62-Sm-144,** ***[147]{.underline}*, 148,** **[149]{.underline},**
***[150]{.underline}*,** **[151]{.underline},**
**[152](../../../../../../../../C:/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Temporary%20Internet%20Files/OLK1A2C/Documents%20and%20SettingscataldoLocal%20SettingsTemporary%20Internet%20FilesO%20),
153,** ***[154]{.underline}***

**63-Eu-151, 152,** **[153]{.underline},** ***[154]{.underline}*,**
**[155]{.underline}, 156, 157**

**64-Gd-[152](../../../../../../../../C:/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Temporary%20Internet%20Files/OLK1A2C/Documents%20and%20SettingscataldoLocal%20SettingsTemporary%20Internet%20FilesO%20),
153, 154, 155,** ***[156]{.underline}*,** ***[157]{.underline}*,**
***[158]{.underline}*, 160**

**65-Tb-[159]{.underline}, 160**

**66-Dy-156, 158, 160,** ***[161]{.underline}*, 162, 163,**
[**164**](../../../../../../../../C:/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Documents%20and%20Settings/Oblozinsky.BNL/Local%20Settings/Temporary%20Internet%20Files/OLK1A2C/Documents%20and%20SettingscataldoLocal%20SettingsTemporary%20Internet%20FilesO%20)

**67-Ho-165, 166m**

**68-Er-162, 164, 166, 167, 168, 170**

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

[One-group Capture Cross-Sections for 211 Fission Products]{.underline}
These cross-sections, calculated by I. Sirakov (BNL) following the
methodology of SG17, represent capture cross sections averaged over the
fast neutron spectrum as used by SG17 \[2\]. One-group values were
calculated for all 5 libraries considered by SG21. They provide useful
guidance in judging the quality of evaluation.

**Evaluated libraries.** Five major evaluated nuclear data libraries
were used throughout the present project:

-   ENDF/B-VI release 8, also Preliminary ENDF/B-VII (USA)

-   JENDL-3.3, initially used was JENDL-3.2 (Japan)

-   JEFF-3.0, initially used was JEF-2.2 (Europe)

-   BROND-2 (Russia)

-   CENDL-3.0 (China)

In the above list, official releases of the first 4 libraries were
available throughout the whole SG21 project or throughout its large
part.

CENDL-3.0 has not been officially released yet. However, CENDL-3.0
fission products were made available for the purposes of SG21 on October
7, 2001. It comprised 101 new evaluations for 100 isotopes and one
meta-state (Z=3166, A=69164) in addition to the two fission product
evaluations (^107,\ 109^Ag) carried over from CENDL-2. The new
evaluations in CENDL-3.0 are:

-   ^69,\ 71^Ga; ^83,\ 84,\ 85,\ 86^Kr; ^85,\ 87^Rb; ^88,\ 89,\ 90^Sr;
    ^89,\ 91^Y; ^93,\ 95^Zr; ^93,\ 95^Nb; ^95,\ 97,\ 98,\ 100^Mo;
    ^99^Tc; ^99,\ 100,\ 101,\ 102,\ 103,\ 104,\ 105^Ru; ^103,\ 105^Rh;
    ^105,\ 108^Pd; ^113^Cd; ^115^In; ^121,\ 123,\ 125^Sb; ^130^Te;
    ^127,\ 129,\ 135^I;
    ^123,\ 124,\ 129,\ 131,\ 132,\ 134,\ 135,\ 136^Xe;
    ^133,\ 134,\ 135,\ 137^Cs;
    ^130,\ 132,\ 134,\ 135,\ 136,\ 137,\ 138^Ba; ^139^La;
    ^136,\ 138,\ 140,\ 141,\ 142,\ 144^Ce; ^141^Pr;
    ^142,\ 143,\ 144,\ 145,\ 146,\ 147,\ 148,\ 150^Nd;
    ^147,\ 148,\ 148m,\ 149^Pm;
    ^144,\ 147,\ 148,\ 149,\ 150,\ 151,\ 152,\ 154^Sm;
    ^151,\ 153,\ 154,\ 155^Eu;
    ^152,\ 154,\ 155,\ 156,\ 157,\ 158,\ 160^Gd; and ^164^Dy.

**Graphical inter-comparison**. This important reviewer tool was
prepared for a complete set of 211 fission products using techniques
developed by V. Zerkin, IAEA Vienna. Inter-comparison includes data from
5 evaluated data libraries as well as from EXFOR (CSISRS) experimental
reaction database.

Inter-comparison plots were prepared for 7 most important reaction
channels, (n, tot), (n, el), (n, inl), (n, 2n), (n, γ), (n, p), and (n,
α) (MF=3, MT=1, 2, 4, 16, 102, 103, 107). Furthermore, expanded plots
were provided for total and capture cross sections. This makes
altogether 9 plots per nucleus, totaling to almost 1900 plots in the
whole package. An example of these plots is shown in **APPENDIX A** in
connection with the sample review report for ^102^Ru.

A convenient access to the evaluated files as well as to EXFOR files is
also available form the inter-comparison plots.

3.  **Review methodology**

The review methodology was developed in three steps. First, a sample
case of ^131^Xe was prepared by BNL, considering two basic review
principles - comparison of evaluated and experimental cross sections,
and analysis of evaluation methodology. Second, a trial review was
undertaken for 16 materials by the whole SG21. Third, results were
discussed, review procedures were refined and a common review
methodology was adopted.

Adopted review procedure included 4 basic steps:

1.  Perform initial analysis

    -   Inspect inter-comparison plots; check all evaluations; check
        EXFOR data for completeness and correctness.

    -   Check other experimental data since often little or no isotopic
        data for fission products are available in EXFOR.

```{=html}
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```
2.  Review low energy region

    -   Analyze thermal cross sections (total, capture, elastic).

    -   Analyze resolved resonance & unresolved resonance region (total,
        capture, elastic).

```{=html}
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```
3.  Review fast neutron region

    -   Analyze fast neutron region, focus on total, capture, elastic
        inelastic, (n, 2n), (n, p) and (n, α) cross sections.

    -   Analyze evaluation methodology, consider year of origin and
        reputation of evaluator; consider physics, codes and parameters;
        consider completeness of evaluation.

```{=html}
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```
4.  Write review report

    -   Describe procedure and findings

    -   State recommendation for the best evaluation (separately for
        slow region and for fast region) or any other conclusion as
        appropriate.

As an example of a fairly detailed review we reproduce in **APPENDIX B**
the review report for ^102^Ru by T. Nakagawa (JAERI).

Each review was posted on SG21 webpage and made available for criticism
by the rest of SG21. Once all reviews were completed, final
recommendations were made by a group of reviewers that attended the
closing SG21 Workshop.

4.  **Reviews**

Review of fission product evaluations for a complete set of 211
materials was performed by SG21. Summary of reviews, supplied by four
data projects participating in SG21 with contributions of individual
reviewers, is given in Table 2.

**Table 2. Summary of SG21 reviews.**

  -------------------- ------------------------ --------------------------
  **Project**          **Name**                 **Number of Reviews**

  ENDF/B               Sirakov                  24

                       Chang                    20

                       Oblozinsky               17

                       Herman                   14

                                                *Subtotal 75*

  JENDL                Nakagawa                 29

                       Shibata                  26

                       Kawai                    4

                                                *Subtotal 59*

  BROND                Pronyaev                 22

                       Ignatyuk                 13

                                                *Subtotal 35*

  CENDL                Sheng                    22

                       Zhuang                   20

                                                *Subtotal 42*

  ***Total***                                   ***211***
  -------------------- ------------------------ --------------------------

The most productive team was the ENDF team with 75 reviews. This was
followed by JENDL (59 reviews), CENDL (42 reviews) and BROND (35
reviews). The three most productive reviewers were T. Nakagawa (29
materials, JENDL team), followed by K. Shibata (26 materials, JENDL
team) and I. Sirakov (24 materials, ENDF team).

All reviews resulting from the SG21 activity are available on its
webpage \[4\]. This webpage will be supported at least until the
follow-up work by a new Subgroup 23, charged to create a library using
SG21 recommendations, is completed.

SG21 organized a Workshop on Assessment of Fission Product Evaluations
held from April 19 -- 23, 2004 at BNL. Six scientists attended the
workshop, representing 3 out of 4 projects actively involved in SG21:
ENDF/B (P. Oblozinsky, M. Herman, S. Mughabghab), JENDL (T. Nakagawa, O.
Iwamoto) and BROND (V. Pronyaev). Status reports on fission products
evaluations in all 5 major data libraries were presented or delivered in
writing: ENDF/B-VI & VII, P. Oblozinsky; JENDL-3.3, T. Nakagawa;
BROND-3, V. Pronyaev; JEFF-3.0, R. Jacqmin and CENDL-3, Ge Zhigang).

The Workshop discussed review reports for each material, took into
account new BNL-325 evaluations recently performed by S. Mughabghab
\[5\], looked into inter-comparison plots, considered other information,
and reached consensus on the best evaluations for all 211 currently
available materials. In addition, it made recommendations for 7 entirely
new materials.

Minutes of the Workshop \[6\] include all presentations and reports,
summary recommendations for 218 materials, conclusions of the Workshop
and draft proposal of a follow-up subgroup.

4.  **Summary recommendations**

Recommendations of the best evaluations for fission products, as
obtained by SG21, are summarized in Table 3.

We note that ENDF project made a considerable progress in developing new
ENDF/B-VII library scheduled for release in December 2005 \[7\]. In view
of its importance, preliminary version of this library was added to SG21
considerations prior to completing its mission. Therefore, ENDF/B-VII
appears also on the list of evaluated libraries in Table 3.

As shown in Table 3, the most frequently recommended library was
JENDL-3.3. This is not surprising, considering that JENDL-3.3 is based
on evaluations performed some 10-12 years ago that employed up-to-date
physics and methodology. This is followed by CENDL-3, released in 2001
(fission products only), that in general offers solid evaluations in
fast neutron region. Out of 29 materials submitted to ENDF/B-VII, to be
released in December 2005, all were found good and were recommended,
with some improvements in resonance region recommended for 2 materials.
Fission products evaluations in ENDF/B-VI are often obsolete, hence,
they were recommended in limited number of cases. Other two libraries,
JEF-2.2 (JEFF-3.0) and BROND-2 were recommended only exceptionally.

Of particular importance for final recommendations are new BNL-325
evaluations in thermal, resolved resonance and unresolved resonance
regions, recently completed by S. Mughabghab \[5\]. These new
evaluations were recommended for 109 materials. On top of it they were
already included in 29 new evaluations submitted to ENDF/B-VII.

**Table 3. Summary of recommended libraries**

+--------------------+--------------+----------------+----------------+
| **Library**        | **Full       | **Resonance**  | **Fast         |
|                    | File**       |                | Region**       |
| **(Data Source)**  |              | **Region**     |                |
+--------------------+--------------+----------------+----------------+
| ENDF/B-VI          | 1            | 17             | 13             |
+--------------------+--------------+----------------+----------------+
| ENDF/B-VII         | 27           | \-             | 2              |
+--------------------+--------------+----------------+----------------+
| JEFF-3.0           | 1            | \-             | \-             |
+--------------------+--------------+----------------+----------------+
| JENDL-3.3          | 44           | 7              | 66             |
+--------------------+--------------+----------------+----------------+
| CENDL-3            | 10           | \-             | 27             |
+--------------------+--------------+----------------+----------------+
| BROND-2            | 1            | 1              | 1              |
+--------------------+--------------+----------------+----------------+
| New BNL-325        | \-           | 109            | \-             |
+--------------------+--------------+----------------+----------------+
| EMPIRE             | \-           | \-             | 25             |
+--------------------+--------------+----------------+----------------+
| **Total**          | **84**       | **134**        | **134**        |
+--------------------+--------------+----------------+----------------+

In 25 instances, evaluations in fast neutron region by the nuclear
reaction model code Empire were recommended. In general, these are cases
where little or no data are available. It is assumed that, due to
up-to-date physics and most recent parameterization including Reference
Input Parameter Library (RIPL-2), Empire is well suited to predict
unknown cross sections \[8\].

Table 3 suggests that complete data files are readily available for 84
materials. For the remaining 134 materials, merging of files from 2
different sources must be performed, including a few cases where data
from 3 sources should be merged.

SG21 recommendations are summarized in Table 4. This table shows
recommendations for 218 materials (211 existing + 7 new) in the fission
products range, Z = 31 -- 68, as discussed and approved by SG21 Workshop
\[4\].

Explanation to Table 4:

-   In the case that a single library or data source is shown,
    recommended was a specific file in full, meaning that no merging is
    needed.

-   If two sources are shown, different recommendations for slow and
    fast neutron regions were made, meaning that merging of 2 files is
    required.

-   New-BNL. Atlas of Neutron Resonances \[5\] by Said Mughabhab,
    formerly known as BNL-325.

-   SC (Said check). Reminder to S. Mughabghab to look into evaluations
    that were either not completed or a need for revision was indicated.

-   EMPIRE. Evaluation using the nuclear reaction model code Empire
    \[8\] is recommended in the fast neutron region.

-   Update needed. This refers to cases where ENDF/B-VII evaluations are
    not considered to be final.

-   New library. This refers to ENDF/B-VII library, not yet released.

-   New file. This refers to cases where entirely new file in the fast
    region will be created using the code EMPIRE.

-   

-   

-   

**Table 4. Summary recommendations for 211 existing and 7 new materials
in the fission products range, Z = 31 -- 68.**

+----+----+-----------+-----------+--------------------+--------------+
| ** | ## | ###       | **R       | ###                | ##           |
| No | ## | # Nuclide | eviewer** | ### Recommendation | #### Comment |
| ** |  Z |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  | 31 | 31-Ga-69  | O         | New-BNL +          | Merging      |
|    |    |           | blozinsky | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 2  |    | 31-Ga-71  | O         | CENDL-3            |              |
|    |    |           | blozinsky |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 3  | 32 | 32-Ge-70  | Herman    | ENDF/B-VII         | New library  |
+----+----+-----------+-----------+--------------------+--------------+
| 4  |    | 32-Ge-72  | Herman    | ENDF/B-VII         | New library  |
+----+----+-----------+-----------+--------------------+--------------+
| 5  |    | 32-Ge-73  | Herman    | ENDF/B-VII         | New library  |
+----+----+-----------+-----------+--------------------+--------------+
| 6  |    | 32-Ge-74  | Herman    | ENDF/B-VII         | New library  |
+----+----+-----------+-----------+--------------------+--------------+
| 7  |    | 32-Ge-76  | Herman    | ENDF/B-VII         | New library  |
+----+----+-----------+-----------+--------------------+--------------+
| 8  | 33 | 33-As-75  | Herman    | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 9  | 34 | 34-Se-74  | Sirakov   | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 10 |    | 34-Se-76  | Sirakov   | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 11 |    | 34-Se-77  | Sirakov   | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 12 |    | 34-Se-78  | Sirakov   | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 13 |    | 34-Se-79  | Sirakov   | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 14 |    | 34-Se-80  | Sirakov   | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 15 |    | 34-Se-82  | Sirakov   | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 16 | 35 | 35-Br-79  | O         | JENDL-3.3          |              |
|    |    |           | blozinsky |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 17 |    | 35-Br-81  | O         | New-BNL +          | Merging      |
|    |    |           | blozinsky | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 18 | 36 | 36-Kr-78  | Sirakov   | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 19 |    | 36-Kr-80  | Sirakov   | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 20 |    | 36-Kr-82  | Sirakov   | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 21 |    | 36-Kr-83  | Sirakov   | CENDL-3            |              |
+----+----+-----------+-----------+--------------------+--------------+
| 22 |    | 36-Kr-84  | Sirakov   | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3, RRP up  | needed       |
|    |    |           |           | to 100 keV         |              |
+----+----+-----------+-----------+--------------------+--------------+
| 23 |    | 36-Kr-85  | Sirakov   | JENDL-3.3 + EMPIRE | Merging      |
|    |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 24 |    | 36-Kr-86  | Sirakov   | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 25 | 37 | 37-Rb-85  | Sirakov   | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 26 |    | 37-Rb-86  | O         | ENDF/B-VI + EMPIRE | Merging      |
|    |    |           | blozinsky |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 27 |    | 37-Rb-87  | Sirakov   | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 28 | 38 | 38-Sr-84  | Shen      | New-BNL + EMPIRE   | Merging      |
|    |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 29 |    | 38-Sr-86  | Shen      | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| ** | ## | ###       | **R       | ###                | ##           |
| No | ## | # Nuclide | eviewer** | ### Recommendation | #### Comment |
| ** |  Z |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 30 |    | 38-Sr-87  | Shen      | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 31 |    | 38-Sr-88  | Sirakov   | New-BNL + CENDL-3  | Merging      |
|    |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 32 |    | 38-Sr-89  | Shen      | CENDL-3            |              |
+----+----+-----------+-----------+--------------------+--------------+
| 33 |    | 38-Sr-90  | Shen      | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 34 | 39 | 39-Y- 89  | Shen      | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 35 |    | 39-Y- 90  | Shen      | ENDF/B-VI + EMPIRE | New file     |
+----+----+-----------+-----------+--------------------+--------------+
| 36 |    | 39-Y- 91  | Shen      | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 37 | 40 | 40-Zr-90  | Chang     | BROND-2            |              |
+----+----+-----------+-----------+--------------------+--------------+
| 38 |    | 40-Zr-91  | Chang     | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 39 |    | 40-Zr-92  | Chang     | New-BNL + BROND-2  | Merging      |
|    |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 40 |    | 40-Zr-93  | Chang     | BROND-2 +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 41 |    | 40-Zr-94  | Chang     | ENDF/B-VI +        | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 42 |    | 40-Zr-95  | Sirakov   | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 43 |    | 40-Zr-96  | Chang     | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 44 | 41 | 41-Nb-93  | Shibata   | JENDL-3.3 +        | Merging      |
|    |    |           |           | ENDF/B-VI          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 45 |    | 41-Nb-94  | Shibata   | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 46 |    | 41-Nb-95  | Kawai     | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 47 | 42 | 42-Mo-92  | Chang     | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 48 |    | 42-Mo-94  | Chang     | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 49 |    | 42-Mo-95  | Chang     | ENDF/B-VII         | New library  |
+----+----+-----------+-----------+--------------------+--------------+
| 50 |    | 42-Mo-96  | Chang     | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 51 |    | 42-Mo-97  | Chang     | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 52 |    | 42-Mo-98  | Chang     | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 53 |    | 42-Mo-99  | Chang     | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 54 |    | 42-Mo-100 | Chang     | CENDL-3            |              |
+----+----+-----------+-----------+--------------------+--------------+
| 55 | 43 | 43-Tc-99  | O         | New-BNL +          | Update       |
|    |    |           | blozinsky | ENDF/B-VII         | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 56 | 44 | 44-Ru-96  | Nakagawa  | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 57 |    | 44-Ru-98  | Nakagawa  | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 58 |    | 44-Ru-99  | Nakagawa  | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 59 |    | 44-Ru-100 | Nakagawa  | JENDL-3.3 +        | Merging      |
|    |    |           |           | CENDL-3            | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 60 |    | 44-Ru-101 | Nakagawa  | ENDF/B-VII         | New library  |
+----+----+-----------+-----------+--------------------+--------------+
| 61 |    | 44-Ru-102 | Nakagawa  | New-BNL + CENDL-3  | Merging      |
|    |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 62 |    | 44-Ru-103 | Nakagawa  | New-BNL + CENDL-3  | Merging      |
|    |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| ** | ## | ###       | **R       | ###                | ##           |
| No | ## | # Nuclide | eviewer** | ### Recommendation | #### Comment |
| ** |  Z |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 63 |    | 44-Ru-104 | Nakagawa  | CENDL-3            |              |
+----+----+-----------+-----------+--------------------+--------------+
| 64 |    | 44-Ru-105 | Nakagawa  | CENDL-3            |              |
+----+----+-----------+-----------+--------------------+--------------+
| 65 |    | 44-Ru-106 | Nakagawa  | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 66 | 45 | 45-Rh-103 | Shibata   | New-BNL +          | Update       |
|    |    |           |           | ENDF/B-VII         | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 67 |    | 45-Rh-105 | Shibata   | ENDF/B-VI +        | Merging      |
|    |    |           |           | CENDL-3            | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 68 | 46 | 46-Pd-102 | Herman    | New-BNL +          | Merging      |
|    |    |           |           | ENDF/B-VI          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 69 |    | 46-Pd-104 | Shibata   | New-BNL +          | Merging      |
|    |    |           |           | ENDF/B-VI          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 70 |    | 46-Pd-105 | Shibata   | ENDF/B-VII         | New library  |
+----+----+-----------+-----------+--------------------+--------------+
| 71 |    | 46-Pd-106 | Shibata   | New-BNL +          | Merging      |
|    |    |           |           | ENDF/B-VI          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 72 |    | 46-Pd-107 | Shibata   | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 73 |    | 46-Pd-108 | Shibata   | New-BNL +          | Merging      |
|    |    |           |           | ENDF/B-VI          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 74 |    | 46-Pd-110 | Shibata   | New-BNL +          | Merging      |
|    |    |           |           | ENDF/B-VI          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 75 | 47 | 47-Ag-107 | Shen      | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 76 |    | 47-Ag-109 | Shen      | ENDF/B-VII         | New library  |
+----+----+-----------+-----------+--------------------+--------------+
| 77 |    | 4         | Shen      | New-BNL +          | Merging      |
|    |    | 7-Ag-110m |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 78 |    | 47-Ag-111 | Shen      | ENDF/B-VI + EMPIRE | New file     |
+----+----+-----------+-----------+--------------------+--------------+
| 79 | 48 | 48-Cd-106 | O         | New-BNL +          | Merging      |
|    |    |           | blozinsky | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 80 |    | 48-Cd-108 | O         | New-BNL +          | Merging      |
|    |    |           | blozinsky | ENDF/B-VI          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 81 |    | 48-Cd-110 | Herman    | New-BNL +          | Merging      |
|    |    |           |           | ENDF/B-VI          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 82 |    | 48-Cd-111 | Herman    | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 83 |    | 48-Cd-112 | Herman    | New-BNL +          | Merging      |
|    |    |           |           | ENDF/B-VI          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 84 |    | 48-Cd-113 | Herman    | New-BNL + CENDL-3  | Merging      |
|    |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 85 |    | 48-Cd-114 | Herman    | ENDF/B-VI          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 86 |    | 4         | O         | ENDF/B-VI + EMPIRE | New file     |
|    |    | 8-Cd-115m | blozinsky |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 87 |    | 48-Cd-116 | O         | New-BNL +          | Merging      |
|    |    |           | blozinsky | ENDF/B-VI          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 88 | 49 | 49-In-113 | Zhuang    | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 89 |    | 49-In-115 | O         | New-BNL +          | Merging      |
|    |    |           | blozinsky | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 90 | 50 | 50-Sn-112 | Shibata   | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| n  |    | 50-Sn-113 | none      | New-BNL + EMPIRE   | New material |
| ew |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 91 |    | 50-Sn-114 | Shibata   | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 92 |    | 50-Sn-115 | Shibata   | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 93 |    | 50-Sn-116 | Shibata   | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 94 |    | 50-Sn-117 | Shibata   | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| ** | ## | ###       | **R       | ###                | ##           |
| No | ## | # Nuclide | eviewer** | ### Recommendation | #### Comment |
| ** |  Z |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 95 |    | 50-Sn-118 | Shibata   | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 96 |    | 50-Sn-119 | Shibata   | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 97 |    | 50-Sn-120 | Shibata   | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 98 |    | 50-Sn-122 | Shibata   | New-BNL +          | Merging      |
|    |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 99 |    | 50-Sn-123 | Shibata   | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 50-Sn-124 | Shibata   | New-BNL +          | Merging      |
| 00 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 50-Sn-125 | Shibata   | ENDF/B-VI + EMPIRE | New file     |
| 01 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 50-Sn-126 | Shibata   | JENDL-3.3          |              |
| 02 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  | 51 | 51-Sb-121 | Shibata   | New-BNL + CENDL-3  | Merging      |
| 03 |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 51-Sb-123 | Shibata   | New-BNL + CENDL-3  | Merging      |
| 04 |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 51-Sb-124 | Zhuang    | JENDL-3.3          |              |
| 05 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 51-Sb-125 | Kawai     | JENDL-3.3          |              |
| 06 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 51-Sb-126 | Zhuang    | ENDF/B-VI + EMPIRE | New file     |
| 07 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  | 52 | 52-Te-120 | Zhuang    | JENDL-3.3          |              |
| 08 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 52-Te-122 | Zhuang    | New-BNL +          | Merging      |
| 09 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 52-Te-123 | Zhuang    | New-BNL +          | Merging      |
| 10 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 52-Te-124 | Zhuang    | New-BNL +          | Merging      |
| 11 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 52-Te-125 | Zhuang    | New-BNL +          | Merging      |
| 12 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 52-Te-126 | Zhuang    | New-BNL +          | Merging      |
| 13 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 5         | Zhuang    | JENDL-3.3          |              |
| 14 |    | 2-Te-127m |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 52-Te-128 | Zhuang    | New-BNL +          | Merging      |
| 15 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 5         | Zhuang    | JENDL-3.3          |              |
| 16 |    | 2-Te-129m |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 52-Te-130 | Zhuang    | New-BNL + CENDL-3  | Merging      |
| 17 |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 52-Te-132 | Zhuang    | ENDF/B-VI + EMPIRE | Merging      |
| 18 |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  | 53 | 53-I- 127 | Pronyaev  | New-BNL +          | Merging      |
| 19 |    |           |           | ENDF/B-VI          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 53-I- 129 | Pronyaev  | New-BNL +          | Merging      |
| 20 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 53-I- 130 | Herman    | ENDF/B-VI + EMPIRE | New file     |
| 21 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 53-I- 131 | Pronyaev  | JENDL-3.3          |              |
| 22 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 53-I- 135 | Pronyaev  | ENDF/B-VI +        | Merging      |
| 23 |    |           |           | CENDL-3            | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  | 54 | 54-Xe-123 | Pronyaev  | CENDL-3            |              |
| 24 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 54-Xe-124 | Pronyaev  | New-BNL + CENDL-3  | Merging      |
| 25 |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 54-Xe-126 | Pronyaev  | New-BNL +          | Merging      |
| 26 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 54-Xe-128 | Zhuang    | New-BNL +          | Merging      |
| 27 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| ** | ## | ###       | **R       | ###                | ##           |
| No | ## | # Nuclide | eviewer** | ### Recommendation | #### Comment |
| ** |  Z |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 54-Xe-129 | Pronyaev  | New-BNL +          | Merging      |
| 28 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 54-Xe-130 | Zhuang    | New-BNL +          | Merging      |
| 29 |    |           |           | ENDF/B-VI          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 54-Xe-131 | Shen      | ENDF/B-VII         | New library  |
| 30 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 54-Xe-132 | Zhuang    | New-BNL + CENDL-3  | Merging      |
| 31 |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 54-Xe-133 | Zhuang    | JENDL-3.3          |              |
| 32 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 54-Xe-134 | Zhuang    | New-BNL + CENDL-3  | Merging      |
| 33 |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 54-Xe-135 | Pronyaev  | New-BNL +          | Merging      |
| 34 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 54-Xe-136 | Zhuang    | New-BNL + CENDL-3  | Merging      |
| 35 |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  | 55 | 55-Cs-133 | Sirakov   | ENDF/B-VII         | New library  |
| 36 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 55-Cs-134 | Shen      | New-BNL +          | Merging      |
| 37 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 55-Cs-135 | Sirakov   | New-BNL +          | Merging      |
| 38 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 55-Cs-136 | Sirakov   | SC + JENDL-3.3     | SC: to be    |
| 39 |    |           |           |                    | checked by   |
|    |    |           |           |                    | Mughabghab   |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 55-Cs-137 | Sirakov   | JENDL-3.3          |              |
| 40 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  | 56 | 56-Ba-130 | O         | New-BNL +          | Merging      |
| 41 |    |           | blozinsky | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 56-Ba-132 | Sirakov   | New-BNL +          | Merging      |
| 42 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| n  |    | 56-Ba-133 | none      | New-BNL + EMPIRE   | New material |
| ew |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 56-Ba-134 | Pronyaev  | New-BNL +          | Merging      |
| 43 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 56-Ba-135 | Pronyaev  | New-BNL +          | Merging      |
| 44 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 56-Ba-136 | Pronyaev  | New-BNL +          | Merging      |
| 45 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 56-Ba-137 | Pronyaev  | New-BNL +          | Merging      |
| 46 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 56-Ba-138 | Pronyaev  | New-BNL + CENDL-3  | Merging      |
| 47 |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 56-Ba-140 | Sirakov   | JEFF-3.0           |              |
| 48 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  | 57 | 57-La-138 | Nakagawa  | JENDL-3.3          |              |
| 49 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 57-La-139 | Nakagawa  | New-BNL + CENDL-3  | Merging      |
| 50 |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 57-La-140 | Nakagawa  | ENDF/B-VI + EMPIRE | New file     |
| 51 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  | 58 | 58-Ce-136 | Nakagawa  | New-BNL + EMPIRE   | New file     |
| 52 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 58-Ce-138 | Nakagawa  | New-BNL + EMPIRE   | New file     |
| 53 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| n  |    | 58-Ce-139 | none      | New-BNL + EMPIRE   | New material |
| ew |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 58-Ce-140 | Nakagawa  | New-BNL +          | Merging      |
| 54 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 58-Ce-141 | Nakagawa  | JENDL-3.3 (SC) +   | SC: to be    |
| 55 |    |           |           | CENDL-3            | checked by   |
|    |    |           |           |                    | Mughabghab   |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 58-Ce-142 | Nakagawa  | New-BNL +          | Merging      |
| 56 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 58-Ce-143 | Nakagawa  | ENDF/B-VI + EMPIRE | New file     |
| 57 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| ** | ## | ###       | **R       | ###                | ##           |
| No | ## | # Nuclide | eviewer** | ### Recommendation | #### Comment |
| ** |  Z |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 58-Ce-144 | Nakagawa  | JENDL-3.3          |              |
| 58 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  | 59 | 59-Pr-141 | O         | ENDF/B-VII         | New library  |
| 59 |    |           | blozinsky |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 59-Pr-142 | O         | New-BNL + EMPIRE   | New file     |
| 60 |    |           | blozinsky |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 59-Pr-143 | O         | New-BNL +          | Merging      |
| 61 |    |           | blozinsky | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  | 60 | 60-Nd-142 | Kawai     | JENDL-3.3 (SC) +   | SC: to be    |
| 62 |    |           |           | CENDL-3 (ENDF/B-VI | checked by   |
|    |    |           |           | for capture)       | Mughabghab.  |
|    |    |           |           |                    | Merge=3      |
|    |    |           |           |                    | sources.     |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 60-Nd-143 | Nakagawa  | ENDF/B-VII         | New library  |
| 63 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 60-Nd-144 | Nakagawa  | JENDL-3.3          |              |
| 64 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 60-Nd-145 | Kawai     | ENDF/B-VII         | New library  |
| 65 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 60-Nd-146 | Nakagawa  | New-BNL + CENDL-3  | Merge        |
| 66 |    |           |           | (JEFF-3.0 = inel,  | involves 3   |
|    |    |           |           | capture)           | sources      |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 60-Nd-147 | Nakagawa  | New-BNL + CENDL-3  |              |
| 67 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 60-Nd-148 | Nakagawa  | New-BNL +          | Merge        |
| 68 |    |           |           | JENDL-3.3 (CENDL-3 | involves 3   |
|    |    |           |           | for total)         | sources      |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 60-Nd-150 | Nakagawa  | New-BNL + CENDL-3  | Merging      |
| 69 |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  | 61 | 61-Pm-147 | Shen      | New-BNL +          | Merging      |
| 70 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 61-Pm-148 | Shen      | New-BNL +          | Merging      |
| 71 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 6         | O         | CENDL-3            |              |
| 72 |    | 1-Pm-148m | blozinsky |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 61-Pm-149 | Shen      | JENDL-3.3          |              |
| 73 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 61-Pm-151 | O         | ENDF/B-VI + URP by | Merge        |
| 74 |    |           | blozinsky | Said + EMPIRE      | involves 3   |
|    |    |           |           |                    | sources      |
+----+----+-----------+-----------+--------------------+--------------+
| 1  | 62 | 62-Sm-144 | Ignatyuk  | New-BNL +          | Merging      |
| 75 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 62-Sm-147 | Ignatyuk  | ENDF/B-VII         | New library  |
| 76 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 62-Sm-148 | Ignatyuk  | New-BNL +          | Merging      |
| 77 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 62-Sm-149 | Ignatyuk  | ENDF/B-VII         | New library  |
| 78 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 62-Sm-150 | Ignatyuk  | ENDF/B-VII         | New library  |
| 79 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 62-Sm-151 | Ignatyuk  | ENDF/B-VII         | New library  |
| 80 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 62-Sm-152 | Ignatyuk  | ENDF/B-VII         | New library  |
| 81 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 62-Sm-153 | Ignatyuk  | JENDL-3.3          |              |
| 82 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 62-Sm-154 | Ignatyuk  | CENDL-3            |              |
| 83 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  | 63 | 63-Eu-151 | Nakagawa  | ENDF/B-VI +        | Merging      |
| 84 |    |           |           | CENDL-3            | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 63-Eu-152 | Nakagawa  | ENDF/B-VI (up to   | Merging may  |
| 85 |    |           |           | 10 keV) +          | be complex   |
|    |    |           |           | JENDL-3.3          |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 63-Eu-153 | Ignatyuk  | ENDF/B-VII         | New library  |
| 86 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| ** | ## | ###       | **R       | ###                | ##           |
| No | ## | # Nuclide | eviewer** | ### Recommendation | #### Comment |
| ** |  Z |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 63-Eu-154 | Ignatyuk  | New-BNL + CENDL-3  | Merging      |
| 87 |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 63-Eu-155 | Ignatyuk  | JENDL-3.3 (SC) +   | SC: to be    |
| 88 |    |           |           | CENDL-3            | checked by   |
|    |    |           |           |                    | Mughabghab   |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 63-Eu-156 | Ignatyuk  | JENDL-3.3          |              |
| 89 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 63-Eu-157 | Herman    | ENDF/B-VI + EMPIRE | New file     |
| 90 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  | 64 | 64-Gd-152 | Pronyaev  | New-BNL +          | Merging      |
| 91 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| n  |    | 64-Gd-153 | none      | New-BNL + EMPIRE   | New material |
| ew |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 64-Gd-154 | Pronyaev  | New-BNL + CENDL-3  | Merging      |
| 92 |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 64-Gd-155 | Pronyaev  | ENDF/B-VII         | New library  |
| 93 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 64-Gd-156 | Pronyaev  | CENDL-3            |              |
| 94 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 64-Gd-157 | Pronyaev  | ENDF/B-VII         | New library  |
| 95 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 64-Gd-158 | Pronyaev  | New-BNL + CENDL-3  | Merging      |
| 96 |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 64-Gd-160 | Pronyaev  | New-BNL + CENDL-3  | Merging      |
| 97 |    |           |           |                    | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  | 65 | 65-Tb-159 | Pronyaev  | New-BNL +          | Merging      |
| 98 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 1  |    | 65-Tb-160 | Shibata   | New-BNL + EMPIRE   | New file     |
| 99 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| n  | 66 | 66-Dy-156 | none      | New-BNL + EMPIRE   | New material |
| ew |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| n  |    | 66-Dy-158 | none      | New-BNL + EMPIRE   | New material |
| ew |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 2  |    | 66-Dy-160 | Shen      | ENDF/B-VII         | New library  |
| 00 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 2  |    | 66-Dy-161 | Shen      | ENDF/B-VII         | New library  |
| 01 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 2  |    | 66-Dy-162 | Shen      | ENDF/B-VII         | New library  |
| 02 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 2  |    | 66-Dy-163 | Shen      | ENDF/B-VII         | New library  |
| 03 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 2  |    | 66-Dy-164 | Shen      | ENDF/B-VII \--\>   | M            |
| 04 |    |           |           | Background sig and | odifications |
|    |    |           |           | Q-values should be | in file      |
|    |    |           |           | modified. If       | needed.      |
|    |    |           |           | cannot,            |              |
|    |    |           |           | ENDF/B-VI +        |              |
|    |    |           |           | CENDL-3            |              |
+----+----+-----------+-----------+--------------------+--------------+
| 2  | 67 | 67-Ho-165 | Shibata   | New-BNL +          | Merging      |
| 05 |    |           |           | ENDF/B-VI          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| n  |    | 6         | none      | New-BNL + EMPIRE   | New material |
| ew |    | 7-Ho-166m |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 2  | 68 | 68-Er-162 | Chang     | JENDL-3.3          |              |
| 06 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 2  |    | 68-Er-164 | Chang     | JENDL-3.3          |              |
| 07 |    |           |           |                    |              |
+----+----+-----------+-----------+--------------------+--------------+
| 2  |    | 68-Er-166 | Chang     | New-BNL +          | Merging      |
| 08 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 2  |    | 68-Er-167 | Chang     | New-BNL +          | Merging      |
| 09 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 2  |    | 68-Er-168 | Chang     | New-BNL +          | Merging      |
| 10 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+
| 2  |    | 68-Er-170 | Chang     | New-BNL +          | Merging      |
| 11 |    |           |           | JENDL-3.3          | needed       |
+----+----+-----------+-----------+--------------------+--------------+

5.  **Conclusions**

SG21 performed a considerable job. In 3 years (2001 -- 2004), the
subgroup reviewed and assessed cross-sections for all 211 fission
product materials currently available in 5 major evaluated libraries.
All findings were examined by the concluding SG21 Workshop, which
formulated final recommendations \[6\].

In accordance with its initial charge, SG21 delivered the following
results:

-   Review reports for all 211 available materials in the range Z = 31
    -- 68.

-   Recommendations for the best evaluations for 211 materials. In
    addition, recommendations were made for 7 new materials.

A considerable benefit to SG21 and thus to an overall improvement of
fission products evaluations was made possible by two circumstances not
foreseen at the beginning of the project:

-   First, new BNL-325 evaluations are becoming available \[5\]. This is
    of exceptional importance since Mughabghab's seminal work will
    hardly be repeated in future.

-   Second, a number of improvements in fast neutron region are feasible
    thanks to the power of the code Empire \[7\].

It should be pointed out that SG21 deliverables were review reports and
recommendations.

A follow-up WPEC Subgroup has already been established to produce actual
data files, including testing. This is Subgroup 23 that has been
approved by WPEC in May 2004. Expected outcome of SG23 should be
international library of cross-section evaluations for fission products.

**REFERENCES**

1.  R.Q. Wright and R.E. MacFarlane, Review of ENDF/B-VI Fission-Product
    Cross Sections, Report ORNL/TM-13723 (Oak Ridge National Laboratory,
    2000).

2.  H. Gruppelaar *et al*, Status of Pseudo-Fission-Product
    Cross-Sections for Fast Reactors, final report of SG17, NEA/WPEC-17
    (Nuclear Energy Agency, Paris, 1998).

3.  S. Mughabghab, Thermal Neutron Capture Cross Sections, Resonance
    Integrals and g-Factors, Report INDC(NDS)-440 (International Atomic
    Energy Agency, Vienna, 2003)

4.  Webpage of the WPEC Subgroup 21,
    [www.nndc.bnl.gov/sg21](http://www.nndc.bnl.gov/sg21).

5.  S. Mughabghab, "Atlas of Neutron Cross Sections: Resonance
    Parameters and Thermal Cross Sections", under preparation, to be
    submitted to Elsevier by June 15, 2005, publication of the book (2
    volumes) expected early 2006, see
    [www.nndc.bnl.gov/atlas](http://www.nndc.bnl.gov/atlas) for more
    details.

6.  P. Oblozinsky (editor), Minutes of the Workshop on Assessment of
    Fission Product Evaluations, Brookhaven National Laboratory, April
    19 -- 23, 2004, unpublished, see
    [www.nndc.bnl.gov/sg21](http://www.nndc.bnl.gov/sg21).

7.  P. Oblozinsky (editor), Summary of the 54-th CSEWG Meeting, Nov 2-4,
    2004, see [www.nndc.bnl.gov/csewg](http://www.nndc.bnl.gov/csewg).

8.  M. Herman *et al*, Nuclear Reaction Model Code EMPIRE-2.19,
    [www.nndc.bnl.gov/empire](http://www.nndc.bnl.gov/empire), released
    in March 2005.

**APPENDIX A**

***Inter-comparison Plots***

***For Ru-102***

**Figure 1. Ru-102 (n, total) cross sections**

![](media/image2.png){width="4.260416666666667in" height="2.71875in"}

**Figure** **2. Ru-102 (n, total) cross sections** **in the fast neutron
region**

![](media/image3.png){width="4.260416666666667in" height="2.71875in"}

**Figure** **3. Ru-102 (n, gamma) cross sections**

![](media/image4.png){width="4.260416666666667in" height="2.71875in"}

**Figure** **4. Ru-102 (n, gamma) cross sections in fast neutron
region**

![](media/image5.png){width="4.260416666666667in" height="2.71875in"}

**Figure 5. Ru-102 (n, elastic)** **cross sections**

![](media/image8.png){width="4.260416666666667in" height="2.71875in"}

**Figure 6. Ru-102 (n, inelastic) cross sections**

![](media/image10.png){width="4.260416666666667in" height="2.71875in"}

**Figure 7. Ru-102 (n, 2n)** **cross sections**

![](media/image13.png){width="4.260416666666667in" height="2.71875in"}

**Figure 8. Ru-102 (n, p) cross sections**

![](media/image14.png){width="4.260416666666667in" height="2.71875in"}

**Figure 9. Ru-102 (n, alpha) cross sections**

![](media/image15.png){width="4.260416666666667in" height="2.71875in"}

**APPENDIX B**

***Review Report on Ru-102***

**Ru-102**

Reviewed by T. Nakagawa, JAERI, February, 2002

**1. Files**

***ENDF/B-VI***: Evaluation was made in 1980 for ENDF/B-V. The results
were the same as ENDF/B-IV. The resonance parameters were revised in
1992 for ENDF/B-VI.

***JENDL-3.2***: In 1984, the evaluation was made for JENDL-2. JENDL-2
data were revised in 1990 for JENDL-3.1. JENDL-3.2 is the same as
JENDL-3.1.

***JEF-2.2***: ENDF/B-V was adopted. In 1989, the charged particle
emission cross sections were adopted from REAC-ECN-4.

***CENDL-3***: Evaluation was performed in 1999. The data were compiled
in 2001.

***BROND-2***: The evaluation was made in1984.

**2. Thermal and resonance region**

\(1\) [Resolved resonance parameters]{.underline}

***ENDF/B-VI*** (1.0e-5 eV -- 13.4 keV)

The resolved resonance region is up to 13.4 keV. The parameters were
determined on the basis of recommendation of Mughabghab et al. \[Mu81\],
experimental data of Macklin and Halperin \[Ma80\], and Anufriev et al.
\[An85\]. The levels between 1.7 and 2.66 keV were fictitious.

***JENDL-3.2*** (1.0e-5 eV -- 13.4 keV)

The evaluation for JENDL-2 was based on the data of Priesmeyer and Jung
\[Pr72\], Shaw et al. \[Sh75\], and Macklin and Halperin \[Ma80\]. Some
levels below 2.6 keV are fictitious. They were revised by considering
the data of Anufriev et al. \[An85\] for JENDL-3. Neutron widths of
other levels were also modified.

***JEF-2.2*** (1.0e-5 eV -- 1.61 keV)

Taken from ENDF/B-V. Only 3 resonance levels are given.

***CENDL-3*** (1.0e-5 eV -- 13.4 keV)

ENDF/B-VI was adopted.

***BROND-2*** (1.0e-5 eV -- 1.3 keV)

The recommendation of Mughabghab et al. \[Mu81\] was adopted.

\(2\) [Unresolved resonance parameters]{.underline}

***ENDF/B-VI*** (13.4 -- 100 keV)

Determined so as to reproduce the average capture cross section measured
by Macklin and Halperin \[Ma80\].

***JENDL-3.2*** (13.4 -- 100 keV)

Determined so as to reproduce the capture and total cross section
calculated with CASTHY code. This calculation is in good agreement with
the capture cross section of Macklin and Halperin \[Ma80\]

***JEF-2.2***

No unresolved resonance parameters are given.

***CENDL-3*** (13.4 -- 100 keV)

ENDF/B-VI was adopted.

***BROND-2*** (1.3 -- 100 keV)

No information.

\(3\) [Recommendation/conclusion for resonance region]{.underline}

The data of JEF-2.2 and BROND-2 are too old. The total and capture cross
sections calculated from these two files are different from other
evaluations, see Figs. a) and b). ***JENDL-3.2*** and ***ENDF/B-VI***
(***CENDL-3***) are of the same quality.

**3. Fast neutron region**

\(1\) [Methodology]{.underline}

***ENDF/B-VI***

Theoretical calculation was widely used. The optical potential of
Moldauer was adopted. Inelastic scattering was calculated with COMNUC-3
code, and the capture cross section with NCAP code. No direct inelastic
was considered. No threshold reaction cross sections are given.

Legendre coefficients of elastically scattered neutrons were calculated
from Moldauer potential. Isotropic distributions were given to the
inelastic scattering.

Evaporation spectra were given to the continuum inelastic scattering.

***JENDL-3.2***

The total, elastic and inelastic scattering, and capture cross sections
were calculated with the spherical optical model and statistical model
code CASTHY. The gamma-ray strength function was determined so as to
reproduce the capture cross section measured by Macklin et al. \[Ma81,
Ma79\]. The 17 levels up to 2.4419 MeV were considered for the inelastic
scattering. Direct inelastic scattering cross sections were calculated
with DWUCK-4 to the first 2+ and 3-- levels.

Other reaction cross sections were calculated with a pre-equilibrium and
multi-step evaporation code PEGASUS. The (n,p) and (n,α) reaction cross
sections were normalized to the systematics of Forrest \[Fo86\] at 14.5
MeV. Sum of the threshold reaction cross sections were considered as a
competing reaction cross sections in the CASTHY calculation.

Angular distributions of elastic and inelastic scattering were
calculated with CASTHY code, and those of direct inelastic with DWUCK-4
code. Isotropic distributions were assumed to the other reactions.

The energy distributions were calculated with PEGUSUS code.

***JEF-2.2***

ENDF/B-V and REAC-ECN-4 data were adopted.

***CENDL-3***

Calculated with SUNF code and DWUCK-4 code. The optical model parameters
were determined with APMU code. The 6 levels up to 1.581 MeV were
considered for the inelastic scattering.

Angular and energy distributions of neutrons were also calculated with
SUNF code.

***BROND-2***

JENDL-1 was adopted in the energy region above 100 keV, except for the
capture cross-section which was modified with the data of Belanova et
al. \[Be84\] and direct capture cross section.

\(2\) Total cross section (MT=1)

Figs. 1, 2: http://www.nndc.bnl.gov/sg21/fp/nucl/ru102/ru102tot.htm

No experimental data are available for Ru-102 total cross section.
Figure c) compares the evaluated data with the measured total cross
section of natural Ru. From this figure, it is seen that ***CENDL-3***
reproduces well the experimental data.

\(3\) Capture cross section (MT=102)

Figs. 3, 4: http://www.nndc.bnl.gov/sg21/fp/nucl/ru102/ru102ng.htm

***BROND-2*** is too large above 100 keV. ***ENDF/B-VI*** is also too
large above 1 MeV. ***JENDL-3.2*** and ***CENDL-3*** are in good
agreement with available experimental data.

\(4\) Elastic scattering cross section (MT=2)

Fig. 5: http://www.nndc.bnl.gov/sg21/fp/nucl/ru102/ru102el.htm

This cross section was obtained as (total cross section) -- (sum of
partial cross sections) in the all libraries.

\(5\) Inelastic scattering cross section (MT=4, 51 -- 91)

Fig. 6: http://www.nndc.bnl.gov/sg21/fp/nucl/ru102/ru102inl.htm

Excited levels considered in the files.

> ENDF/B-VI 19 levels up to 2.814 MeV
>
> JENDL-3.2 17 levels up to 2.442 MeV
>
> JEF-2.2 19 levels up to 2.814 MeV
>
> CENDL-3 6 levels up to 1.581 MeV
>
> BROND-2 14 levels up to 2.372 MeV

The shape of total inelastic scattering cross section of ***ENDF/B-VI***
(***JEF-2.2***) and ***BROND-2*** is not reasonable. That of
***JENDL-3.2*** and ***CENDL-3*** is acceptable.

\(6\) (n,2n) reaction cross section (MT=16)

Fig. 7: http://www.nndc.bnl.gov/sg21/fp/nucl/ru102/ru102n2n.htm

***JENDL-3.2*** and ***CENDL-3*** give the (n,2n) reaction cross
section. Their data are discrepant each other. However, no experimental
data are available.

\(7\) (n,p) reaction cross section (MT=103)

Fig. 8: http://www.nndc.bnl.gov/sg21/fp/nucl/ru102/ru102np.htm

***CENDL-3*** reproduces well the data of Gray et al. \[Gr66\] at 14.7
MeV. However, thisexperimental data is the cross section of Tc-102m
production. Therefore, real cross-section might be larger than CENDL-3.
***JENDL-3.2*** and ***JEF-2*** (REAC-ECN-4) were normalized to 16.7 mb
at 14.5 MeV (Systematics of Forrest \[Fo86\]).

\(8\) (n,α) reaction cross section (MT=107)

Fig. 9: http://www.nndc.bnl.gov/sg21/nucl/ru102/ru102na.htm

***CENDL-3*** adopted the data of JEF-2.2. ***JEF-2.2*** was based on
the data of REAC-ECN-4. ***JENDL-3.2*** was calculated with PEGASUS code
and normalized to 6.2 mb at 14.5 MeV (Recommendation of Forrest
\[Fo86\])

\(9\) Other reactions

The following other reaction cross sections are given in the files.

> JENDL-3.2 (n,3n), (n,nα), (n,np), (n,d), (n,t)
>
> CENDL-3 (n,3n), (n,nα), (n,np), (n,d), (n,t), (n,He-3)
>
> JEF-2.2 (n,d), (n,t), (n,He-3), (n,2p)
>
> ENDF/B-VI no
>
> BROND-2 no

JENDL-3.2 dose not give the cross section of (n, He-3) and (n, 2p)
because their cross sections calculated with PEGASUS code were smaller
than 0.001 mb.

\(10\) [Recommendation/conclusions for fast neutron region]{.underline}

***JENDL-3.2*** or ***CENDL-3*** is recommended. However, the total
cross section of JENDL-3.2 is not in good agreement with experimental
data. The number of levels for the inelastic scattering considered in
CENDL-3 is too small.

**References (Ru-102):**

\[Au85\] Anufriev V.A. et al.: *Sov. At. Energy*, **58**, 328 (1985).

\[Be84\] Belanova T.S. et al.: *At. Energy*, **57**, 243 (1984).

\[Fo86\] Forrest R.A.: *AERE-R* 12419 (1986).

\[Gr66\] Gray P.R. et al.: *Nucl. Phys.*, **75**, 215 (1966).

\[He78\] Heft R.E.: 78Mayag, p.495 (1978).

\[Is69\] Ishikawa H.: *J. Nucl. Sci. Technol.*, **6**, 587 (1969).

\[La65\] Lantz P.M.: *ORNL*-3832, p.6 (1965).

\[Ma79\] Macklin R.L. et al.: NEANDC(E) 209"L", p.103 (1979).

\[Ma80\] Macklin R.L. and Halperin J.: *Nucl. Sci. Eng.*, **73**, 174
(1080).

\[Ma81\] Macklin R.L. and Winters R.R.: *Nucl. Sci. Eng.*, **78**, 110
(1981).

\[Mu01\] Mughabghab S.F.: *INDC(NDS)*-424, p.69 (2001)

\[Mu81\] Mughabghab S.F. et al.: "Neutron Cross Sections, Vol.1, Part
A,"

Academic Press (1981).

\[Pr72\] Priesmeyer H.G. and Jung H.H.: *Atomkernenergie*, **19**, 111
(1972).

\[Sh75\] Shaw R.A. et al.: *Bull. Am. Phys. Soc*., **20**, 560 (1975).

\[Va72\] Van der Linden R. et al.: *J. Radioanl. Chem.*, **11**, 133
(1972).

**Figures (Ru-102):**

Figures a), b) and c) were prepared by T. Nakagawa. Figures a) and b)
are not shown here, while Figure c) is reproduced below. Figures 1 -- 9,
taken from inter-comparison plots \[3\], are shown in Appendix A.

**Figure c. Ru-102 (n, total) cross-sections, evaluated data are
compared with experimental data for natural Ru.**

![](media/image17.png){width="4.99375in" height="3.9131944444444446in"}

-   

**Tables (Ru-102):**

**Table 1**. **Summary for Resolved and Unresolved Resonance Region:
Ru-102.**

\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--

Library RRP URP Remarks

\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--

ENDF/B-VI 13.4 keV MLBW 100 keV

JENDL-3.2 13.4 keV MLBW 100 keV

JEF-2.2 1.61 keV SLBW no URP Taken from ENDF/B-V

CENDL-3 13.4 keV MLBW 100 keV Taken from ENDF/B-VI

BROND-2 1.3 keV MLBW 100 keV Based on Mughabghab \[Mu81\]

\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--

**Table 2**. **Thermal Cross Sections and Resonance Integral: Ru-102.**

\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--

Library/Experiment Total Elastic Capture Res. Integral

\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--

ENDF/B-VI 6.794 5.565 1.228 4.33

JENDL-3.2 6.791 5.561 1.229 4.32

JEF-2.2 5.249 3.949 1.300 3.21

CENDL-3.2 6.794 5.565 1.228 4.29

BROND-2 8.075 6.899 1.176 6.30

Mughabghab \[Mu81\] 1.210.07 4.20.1

Mughabghab \[Mu01\] 1.210.07

Lantz \[La65\] 1.2310%\*2 4.1410%\*4

Ishikawa \[Is69\] 1.370.132\*2

Van der Linden \[Va72\] 4.30.4

Heft \[He78\] 1.310.03\*1 4.680.75

Anufriev et al. \[Au85\]\*3 10.40.6 5.50.5

\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--

\*1) Spectrum averaged

\*2) Maxwellian averaged, activation

\*3) Their data have been deleted from EXFOR file.

\*4) Cut-off = 0.54 eV

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