Nuclear Data Section
International Atomic Energy Agency
P.O.Box 100, A-1400 Vienna, Austria
Memo CP-D/748
Date:
To:
From:

11 June 2012
Distribution
N. Otsuka

Subject:
Reference:

CRL (correlation) and COR (angular correlation)
WP2001-7, CP-D/429

The parameter code CRL (correlation) and COR (angular correlation) have been often
used to compile quantities labeled “correlation” by authors without deep considerationof their real definition. Discussion on this problem is seen in WP2001-7. The code
COR is now obsolete, and now used in only one entry (O0011). All DA/CRL quantity
codes are also obsolete as reminded in Memo CP-D/429. Some CRL quantity codes are
not obsolete, but I found many of them can be replaced with more appropriate existing
quantity code. Corrections are proposed at the end of this memo. We also should
remember that CRL was recently discussed as a typical encrypted EXFOR code [1] andshould remove and avoid it.
An open question about CRL for me is coding of fission yields FY (A L ,Z L ;A H ,Z H )measured by J.H. Hamilton (Vanderbilt Univ., Nashville) et al. by detection of prompt
gammas by gamma sphere. All CRL data sets in are 1 (EXFOR 13599, 13648, 13698,13747, 13749, 13751, 13807) are from this group. To distinguish from normal fission
yields FY(A,Z), e.g.,(98-CF-252(0,F)ELEM/MASS,IND,FY)

Hamilton’s yield FY(A L ,Z L ,A H ,Z H ) has been coded with
(98-CF-252(0,F)ELEM/MASS,IND,FY/CRL,LF/HF)

with A L and A H under MASS1 and MASS2, and Z L and Z H under ELEM1 and ELEM2. A
coding sample (EXFOR 13599.002) is shown below:
SUBENT
BIB
REACTION...
COMMONELEM1NO-DIM
40.
ENDCOMMONDATAMASS1NO-DIM
98.
98.
…

13599002
2003010735(98-CF-252(0,F)ELEM/MASS,IND,FY/CRL,LF/HF)
Yield of correlated fragment pairs.
4
ELEM2NO-DIM
58.

3
MONIT1
PC/FIS
1.0

34
MASS2
NO-DIM
146.
148.

MONIT2
PC/FIS
2.2
14DATA
PC/FIS
0.04
0.04

DATA-ERR
PC/FIS0.01
0.01

A further exclusive quantity FY(A L ,Z L ,A H ,Z H ; A LCP ,Z LCP ) is newly compiled in14331 in PRELIM.1379. For example LCP=4He case is coded as below
SUBENT
BIB
REACTION...
COMMONELEM1NO-DIM
58.0
ENDCOMMON
DATA
MASS1
NO-DIM
146.0
148.0
...

14331002
20120407
33(98-CF-252(0,F)ELEM/MASS,TER,FY/CRL,A)
233409ELEM2NO-DIM
38.0

MASS2
NO-DIM
98.0
95.0

DATA
PC/FIS
0.06
0.08

DATA-ERR
PC/FIS
0.02
0.02

Two and three fragments are identified in coincidence in these two examples, but therelation is not clearly seen in two REACTION codes in 13599.002 and 14331.002.
If we want to have a quick solution for 14331.002 which is consistent with 13599.002,
coding of three fragments (LF, HF and A) in SF7 would be a better solution, forexample(98-CF-252(0,F)ELEM/MASS,TER,FY/CRL,LF/HF/A). Another possible solution without CRL could be use of a new branch code (say, COI)

in SF5. For example,
1. Independent yield where one (Z,A) is specified:(98-CF-252(0,F)ELEM/MASS,IND,FY)

2. Independent yield where two (Z,A) are specified (e.g., 13599.002):(98-CF-252(0,F)ELEM/MASS,IND/COI,FY)

3. Independent yield where three (Z,A) are specified (e.g., 14331.002);(98-CF-252(0,F)ELEM/MASS,IND/TER/COI,FY)

Namely, COI explains two or more particles/nuclides detected in coincidence arecoded for ELEM and/or MASS in SF4. It is also a question whether or not we shouldcode COI when both fragment masses are given for primary fragments (sum of twomasses is equal to the compound mass).
Reference[1] S. Simakov, EXFOR difficulties, INDC(NDS)-0614, p14 (2012).
Distribution:
aloks279@gmail.com
blokhin@ippe.ru
cgc@ciae.ac.cn
chiba@earth.sgu.ac.jp
emmeric.dupont@oecd.org
dbrown@bnl.gov
fukahori.tokio@jaea.go.jp

ganesan555@gmail.com
gezg@ciae.ac.cn
hongwei@ciae.ac.cn
jhchang@kaeri.re.kr
j.roberts@iaea.org
kaltchenko@kinr.kiev.ua
kato@nucl.sci.hokudai.ac.jp

kiralyb@atomki.hu
l.vrapcenjak@iaea.org
kiyoshi.matsumoto@oecd.org
manuel.bossant@oecd.org
manokhin@ippe.ru
mmarina@ippe.ru
mwherman@bnl.gov
nicolas.soppera@oecd.org
nklimova@kinr.kiev.ua
n.otsuka@iaea.org
nrdc@jcprg.org
oblozinsky@bnl.gov
ogritzay@kinr.kiev.ua
otto.schwerer@aon.at
pritychenko@bnl.gov
pronyaev@ippe.ru

r.forrest@iaea.org
samaev@obninsk.ru
s.babykina@polyn.kiae.su
scyang@kaeri.re.kr
s.simakov@iaea.org
stakacs@atomki.hu
stanislav.hlavac@savba.sk
sv.dunaeva@gmail.com
taova@expd.vniief.ru
tarkanyi@atomki.hu
vvvarlamov@gmail.com
vlasov@kinr.kiev.ua
v.semkova@iaea.org
v.zerkin@iaea.org
yolee@kaeri.re.kr
zhuangyx@ciae.ac.cn

Proposed corrections to CRL and COR entries (2012-05-18)
Subentry
13599.002
13599.003
13648.00213648.003
13648.004
13648.005
13648.006
13698.002
13698.003
13698.004
13698.005
13698.006
13747.002
13747.003
13749.002
13751.002
13751.003
13751.004
13807.002
20220.007

REACTION (Current)

22152.010
22461.003
22461.005
22461.006

92-U-235(N,F)MASS,PRE,KE/CRL,LF/HF,MXW
98-CF-252(0,F),TER,DA/CRL,G/A,RSD
98-CF-252(0,F),TER,DA/CRL,G/A,RSD
98-CF-252(0,F)ELEM/MASS,TER,DA/CRL,G/LCP,RSD

98-CF-252(0,F)ELEM/MASS,IND,FY/CRL,LF/HF
98-CF-252(0,F)ELEM/MASS,IND,FY/CRL,LF/HF
98-CF-252(0,F)ELEM/MASS,IND,FY/CRL,LF/HF
98-CF-252(0,F)ELEM/MASS,IND,FY/CRL,LF/HF
98-CF-252(0,F)ELEM/MASS,IND,FY/CRL,LF/HF
98-CF-252(0,F)ELEM/MASS,IND,FY/CRL,LF/HF
98-CF-252(0,F)ELEM/MASS,IND,FY/CRL,LF/HF
98-CF-252(0,F)ELEM/MASS,TER,FY/CRL,LF/HF
98-CF-252(0,F)ELEM/MASS,IND,FY/CRL,LF/HF
98-CF-252(0,F)ELEM/MASS,IND,FY/CRL,LF/HF
98-CF-252(0,F)ELEM/MASS,IND,FY/CRL,LF/HF
98-CF-252(0,F)ELEM/MASS,IND,FY/CRL,LF/HF
94-PU-242(0,F)ELEM/MASS,SEC,FY/CRL,,REL
94-PU-242(0,F)ELEM/MASS,SEC,FY/CRL,,REL
98-CF-252(0,F)ELEM/MASS,IND,FY/CRL,LF/HF
98-CF-252(0,F)ELEM/MASS,IND,FY/CRL,LF/HF
98-CF-252(0,F)ELEM/MASS,TER,FY/CRL,LF/HF
98-CF-252(0,F)ELEM/MASS,TER,FY/CRL,LF/HF
98-CF-252(0,F)ELEM/MASS,PRE,FY/CRL,LF/HF
6-C-12(N,INL)6-C-12,PAR,DA/CRL,G/N,REL

Remark(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(for discussion in this memo)(6-C-12(N,INL)6-C-12,PAR,DA/DA,G/N,NCP)/(6-C-12(N,INL)6-C-12,PAR,DA); E->E-LVL; Add ANG-AZ= 0 or
90 deg.
Use PRE,KE,LF+HF,MXW

Superseded by 22461.005?
Use 2-HE-4,TER,DA,G+FF,RSD
Use ELEM/MASS,TER,DA,G+FF,RSD

22461.008
22461.009
22464.012.1
22464.012.2
23012.005
23014.002
23014.003
30521.002.H

98-CF-252(0,F),TER,DA/CRL,G/A,LEG/RS
98-CF-252(0,F)ELEM/MASS,TER,DA/CRL,G/LCP,LEG/RS
92-U-235(N,F),PR,KE/CRL,N/HF,MXW
92-U-235(N,F),PR,KE/CRL,N/LF,MXW
94-PU-239(N,F)MASS,PRE,KE/CRL,LF/HF,MXW
92-U-233(N,F)MASS,PRE,KE/CRL,LF/HF,MXW
92-U-235(N,F)MASS,PRE,KE/CRL,LF/HF,MXW(92-U-235(N,F)ELEM/MASS,TER,FY/CRL,LCP/HF,MXW)/(92-U-235(N,F)2-HE-4,TER,FY/CRL,A/HF,MXW)

Use 2-HE-4,TER,DA,G+FF,LEG/RSD
Use ELEM/MASS,TER,DA,G+FF,LEG/RSD
For future discussion
For future discussion
Use PRE,KE,LF+HF,MXW(same)(same)
Use TER,FY,,MXW/MSC for both numerator and denominator

30521.002.L(92-U-235(N,F)ELEM/MASS,TER,FY/CRL,LCP/LF,MXW)/(92-U-235(N,F)2-HE-4,TER,FY/CRL,A/LF,MXW)(92-U-235(N,F)ELEM/MASS,TER,FY/CRL,LCP/LF,MXW)/(92-U-235(N,F)ELEM/MASS,TER,FY/CRL,LCP/HF,MXW)
92-U-235(N,F),PR/PAR,DA/CRL,N/N
98-CF-252(0,F),PRE/TER/PAR,FY/CRL,A/FF,REL
96-CM-248(P,F)MASS,PRE,KE/CRL,LF/HF
92-U-238(P,F)MASS,PRE,KE/CRL,LF/HF
92-U-238(G,F)MASS,,KE/CRL,LF/HF,BRA
2-HE-4(G,N+P)1-H-2,,DA/CRL,N/P,BRA
2-HE-4(G,N+P)1-H-2,,DA/CRL,P/D,BRA
2-HE-4(G,N+P)1-H-2,,DA/CRL,N/D,BRA
90-TH-232(P,F),,COR,FF/FF,,EXP
90-TH-232(P,F),,COR,FF/FF,,EXP
90-TH-232(P,F),,COR,FF/FF,,EXP
90-TH-232(P,F),,COR,FF/FF,,EXP
90-TH-232(D,F),,COR,FF/FF,,EXP
90-TH-232(D,F),,COR,FF/FF,,EXP
90-TH-232(D,F),,COR,FF/FF,,EXP
90-TH-232(D,F),,COR,FF/FF,,EXP(same)

30521.002.R
30544.003
30916.006
E1974.003
E2089.002.2
L0101.002
M0035.011
M0035.014
M0035.017
O0011.002
O0011.003
O0011.004
O0011.005
O0011.006
O0011.007
O0011.008
O0011.009(same)
Use PR/PAR,DA,N+N,,REL
Use PRE/TER,FY/TKE,A,REL
Use PRE,KE,LF+HF
Use PRE,KE,LF+HF
Use ,KE,LF+HF,BRA
Use ,DA,N+P,BRA/REL
Use ,DA,P+D,BRA/REL
Use ,DA,N+D,BRA/REL
Use ,DA/DA,FF/FF+FF; ANG -> ANG-RL; add ANG=90 deg(same)(same)(same)(same)(same)(same)(same)

O0011.010
O0011.011
O0011.012
O0011.013
T0117.003

92-U-233(A,F),,COR,FF/FF,,EXP
92-U-233(P,F),,COR,FF/FF,,EXP
90-TH-232(A,F),,COR,FF/FF,,EXP
90-TH-232(A,F),,COR,FF/FF,,EXP
6-C-12(7-N-14,D+A)10-NE-20,PAR,DA/CRL,D/A,REL(same)(same)(same)(same)
Use ISP/PAR,DA/DA,D/D+A,REL