Nuclear Data Section
International Atomic Energy Agency
P.O.Box 100, A-1400 Vienna, Austria

Memo CP-D/449

Date:
To:
From:

11 January 2006
Distribution
O.Schwerer

Subject:

Proposed new fission quantities arising from TRANS 1337
(Reply to memo CP-C/368); new proposals for dict.236;
Corrections to TRANS 1337

When receiving final TRANS 1337 we had a look at the original references of entries 14044
and 14055 finding that several corrections are needed.
In entry 14044, the REACTION coding should be changed. The correct REACTIONs represent
new combinations of codes and therefore require additions to dictionary 236, which are
however different from those proposed in memo CP-C/368.
For entry 14055, we found several data in the article which should be compiled but were not,and two subentries which, in our opinion, were compiled with an inappropriate reaction andshould be removed.
Because we got to see the articles only after receiving the final TRANS, we want to facilitate
the correction (which must be done as retransmission in one of the next area 1 TRANS files)
and therefore append entry 14044 in corrected form to this memo. For entry 14055, whichneeds both addition and deletion of subentries, we have to leave the whole correction to theoriginating center.
Since we cannot read all original articles of all entries compiled by all centres, we would like tostress again that compilers should extensively use all available resources (i.e. the EXFOR
manual, LEXFOR, the archive dictionaries, and similar existing entries in the database) before
entering the data.

Entry 14044
Subentry 2:
REACTION given as(92-U-235(N,F),,DE/DE,LF/HF,REL/MXW)

Since these are energy spectra of heavy fragments for fixed energies of the light fragment, wethink that the following code should be used instead:(92-U-235(N,F),PAR,FY/DE,LF/HF,REL/MXW)
This code needs to be added to dictionary 236.

Subentry 3:
REACTION given as(92-U-235(N,F)MASS,,DE,LF,REL/MXW)
This code exists in dictionary 236, is however not applicable to this subentry. These data aremass spectra and therefore cannot be coded with SF6 = DE.
This is actually a new quantity and we propose the coding(92-U-235(N,F)MASS,PAR/MAS,FY,LF,REL/MXW)
Also this code needs to be added to dictionary 236.
(We have in dict. 236 the quantity MAS,FY for total mass yield. Here we have a mass yield
which is "partial" because it is given for various fixed values of the light fragment energy.)
For both subentries, the meaning of E and E1, E2 can be given in coded form under EN-SEC,e.g.
EN-SEC (E1,HF)

Entry 14055
Subentry 4:
REACTION code PRE,DE,LF+HF (already proposed in CP-E/083) to be added to dict. 236;
in addition, add
EN-SEC (E,LF+HF)
Subentries 5 and 6:
Data from Fig. 7 are compiled as data for "light fragments" and "heavy fragments". However,the legend of Fig. 7 says "high and low energy fragments". We have no coding for this andunless somebody suggests that these are important enough data to introduce new codes, wesuggest to delete these subentries.

Additional data for compilation from this article:• Cross section for Cm-248(12C,4n) was measured (250 nb given in abstract) and should becompiled in a (separate) charged particle entry (C series, with cross-reference to 14055 andvice versa).

• Table I data for No-256 should be compiled, as PRE,AKE,FF and ,AKE,FF (and the samewith HF and LF), and again with SF6 = KEP for most probable kinetic energy.

• Data of Fig. 8 a,b may be compiled as…(0,F)MASS,PRE,FY,,DERIV

Summary: New codes proposed for dictionary 236:

Quantity

Expansion

Reaction type

Dim.

PAR,FY/DE,LF/HF

Fiss.prod.yield at given light and heavy
fragment energy
Fiss.prod.mass spectrum for given lightfragm. kinetic energy
Sum of primary light and heavy
fragm.energies, total kin.energy spectrum
Most probable kinetic energy of primaryfission fragments
Most probable kinetic energy of primary
heavy fragments
Most probable kinetic energy of primarylight fragments
Most probable kinetic energy of fission
fragments
Most probable kinetic energy of heavy
fragments
Most probable kinetic energy of lightfragments

FYE

FYDE

FYP

FYDE

DE

E

E

E

E

E

E

E

E

E

E

E

E

PAR/MAS,FY,LF
PRE,DE,LF+HF(see also CP-E/083)

PRE,KEP,FF
PRE,KEP,HF
PRE,KEP,LF,KEP,FF,KEP,HF,KEP,LF

Distribution:
oblozinsky@bnl.gov
vml@bnl.gov
drochman@bnl.gov

nordborg@nea.fr
manokhin@ippe.obninsk.ru
samaev@obninsk.ru

Mmarina@ippe.obninsk.ru
blokhin@ippe.obninsk.ru
feliks@polyn.kiae.su
chukreev@polyn.kiae.su
S.Dunaeva@iaea.org
taova@expd.vniief.ru
varlamov@depni.sinp.msu.ru
chiba@earth.sgu.ac.jp
kato@nucl.sci.hokudai.ac.jp
ohnishi@nucl.sci.hokudai.ac.jp
ohbayasi@meme.hokudai.ac.jp
yxzhuang@iris.ciae.ac.cn
gezg@iris.ciae.ac.cn
hongwei@iris.ciae.ac.cn
tarkanyi@atomki.hu

stakacs@atomki.hu
katakura.junichi@jaea.go.jp
vlasov@kinr.kiev.ua
kaltchenko@kinr.kiev.ua
ogritzay@kinr.kiev.ua
yolee@kaeri.re.kr
jhchang@kaeri.re.kr
ohtsuka@nucl.sci.hokudai.ac.jp
A.Mengoni@iaea.org
m.wirtz@iaea.org
schwerer@iaeand.iaea.org
v.zerkin@iaea.org
henriksson@nea.fr
exfor@nea.fr

Appendix: Revision to entry 14044 (complete entry appended separately)ENTRY
SUBENTBIB
INSTITUTE
REFERENCE
AUTHOR
TITLE

14044
20060111
14044001
20060111
1013(1USAFLA)(J,PR/C,11,1287,1975)(L.Muga,A.Clem)
Fragment nuclear-charge structure in the thermalneutron-induced fission of 235U
FACILITY(REAC,1USAFLA)
INC-SOURCE Thermal neutron flux
DETECTOR
Thin-film detector luminescence (TFD), 0.1 mg/cm2(SIBAR) Silicon surface barrier detector
METHOD(TOF)
SAMPLE
Thin 0.05 mg/cm2 uranium 235 (99.7 %) as oxide target
HISTORY(20050918C) DR(20060111A)
ENDBIB
130COMMON
13EN-DUMMY
EV
0.025
ENDCOMMON
30ENDSUBENT
200SUBENT
14044002
20060111
BIB
47REACTION(92-U-235(N,F),PAR,FY/DE,LF/HF,REL/MXW)
Yield of the heavy fragment at given heavy andlight fragment kinetic energy
EN-SEC(E1,HF)heavy fragment energy(E2,LF)
light fragment energy
ERR-ANALYS No information
STATUS(CURVE) Data taken from Fig. 2
ENDBIB70
NOCOMMON
00
DATA
0245
E2
E1
DATA
MEV
MEV
ARB-UNITS
99.
4.92E+01
1.40E+01
99.
5.01E+01
2.17E+01
99.
5.10E+01
3.12E+01
99.
5.21E+01
7.41E+01
99.
5.31E+01
1.10E+02
99.
5.42E+01
1.80E+02
99.
5.53E+01
2.55E+02
99.
5.61E+01
3.25E+02
99.
5.72E+01
4.67E+02
99.
5.81E+01
5.98E+02
99.
5.92E+01
8.49E+02
99.
6.01E+01
9.76E+02
99.
6.11E+01
1.26E+03
99.
6.22E+01
1.61E+03
99.
6.32E+01
1.96E+03
99.
6.42E+01
2.13E+03
99.
6.51E+01
2.15E+03
99.
6.61E+01
2.27E+03
99.
6.72E+01
2.17E+03

14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
1404414044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044

01C
11C1213141516171819110111112113114115I
116117118119120121199999
2
1C2223C
24C
2
5C
2
6C
2
7C
2
82
92
102
112
122
132
142
152
162172182192202212222
232
24225226227228229230231232233

99.
6.82E+01
2.05E+03
99.
6.91E+01
1.88E+03
99.
7.02E+01
1.85E+03
99.
7.11E+01
1.96E+03
99.
7.22E+01
1.96E+03…………………………
……………………….
111.
8.39E+01
4.92E+01
111.
8.49E+01
3.68E+01
111.
8.59E+01
2.91E+01
111.
8.69E+01
1.42E+01
ENDDATA
247
0ENDSUBENT
259
0SUBENT
14044003
20060111
BIB
46REACTION(92-U-235(N,F)MASS,PAR/MAS,FY,LF,REL/MXW)
Heavy fragment mass spectra at given light fragment
kinetic energy
EN-SEC(E,LF)
light fragment energy
ERR-ANALYS No information
STATUS(CURVE) Data taken from Fig. 2ENDBIB60NOCOMMON
00DATA
3181
EMASS
DATA
MEV
NO-DIM
ARB-UNITS
99.
1.26E+02
4.54E+01
99.
1.27E+02
2.02E+02
99.
1.28E+02
5.27E+02
99.
1.29E+02
1.04E+03
99.
1.30E+02
1.62E+03
99.
1.31E+02
2.20E+03
99.
1.32E+02
2.67E+03……………………..
………………………….
112.
1.56E+02
3.85E+01
112.
1.57E+02
2.44E+01
112.
1.58E+02
2.04E+01
112.
1.59E+02
1.22E+01
ENDDATA183
0ENDSUBENT1940ENDENTRY
3014044
14044
14044
14044
14044

222223435
36373814044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044
14044

2 256
2 257
2 258
2 259
2 260
29999931C
3233C
343536C
37383931031131231331431531631731831932014044 3 191
14044 3 192
14044 3 193
14044 3 194
14044 3 195
14044 399999
1404499999999