ENTRY O0596 20060209 O024O059600000001
SUBENT O0596001 20060209 O024O059600100001
BIB 16 64 O059600100002
TITLE Nuclear charge distribution in the region of symmetric O059600100003
fission of U-238 by protons of energy 20-85 MeV. O059600100004
AUTHOR (S.Sarkar, L.Yaffe) O059600100005
INSTITUTE (1CANMCG) O059600100006
REFERENCE (J,CJC,54,2349,1976) O059600100007
HISTORY (19991013C) O059600100008
(20050914A) REFERENCE Is corrected. O059600100009
(19991117A) Date is corrected O059600100010
(20050914A) Otto'S remark is included/ O059600100011
(20060209U) Last checking has been done. O059600100012
SAMPLE The uranium foils target was of natural isotopic O059600100013
composition. (99.29% U-238). The foil density varied O059600100014
between 170 and 230 mg/cm**2 depending on the nature ofO059600100015
the experiment. O059600100016
ADD-RES (Z-DIS) O059600100017
(A-DIS) O059600100018
Total number of neutrons emitted in the asymmetric O059600100019
fission of U-238. O059600100020
DETECTOR (GELI) A 30-cm**3 Ge(Li) detector and a 40-cm**3 Ge(Li)O059600100021
detector for gamma-rays. O059600100022
(PROPC) Gas-flow B- counters. O059600100023
(NAICR) NaI(Tl) scintillation crystal for monitor. O059600100024
FACILITY (SYNCY,1CANMCG) O059600100025
METHOD (INTB) O059600100026
(CHSEP) O059600100027
(SITA) Stack assembly contains of the uranium foil, O059600100028
high-purity aluminium catcher foils, a Cu monitor foil.O059600100029
(ACTIV) The duration of the irradiation varied from 2 O059600100030
to 25 minutes. O059600100031
MONITOR ((MONIT)29-CU-65(P,X)29-CU-64,,SIG) O059600100032
DECAY-MON (29-CU-64,12.74HR,AR,511.) O059600100033
MONIT-REF (B0023002,D.A.NEWTON+,J,JIN,35,361,1973) O059600100034
ERR-ANALYS (ERR-T).The total error was assessed for each nuclide O059600100035
by taking the square root of the sum of the squares of O059600100036
individual errors connected with both the nuclide and O059600100037
the monitor. O059600100038
Errors were divided into systematic and random.The O059600100039
systemetic errors are associated with monitor cross O059600100040
section, detector efficiencies,branching ratios and O059600100041
half-life values.Errors involved in the cross sections O059600100042
used in beam monitoring have already been quoted as O059600100043
+-5.9%. Errors in decay scheme uncertainties varied O059600100044
between 1 and 12 while isomer branching ratio O059600100045
uncertainties were 2-3%. Errors in the actual sample O059600100046
measurements were 1-3%. The energy spread in the O059600100047
internal circulating beam is on the average +-2 MeV. O059600100048
Errors in efficiency calibtation of detectors are 2% O059600100049
for the gamma-ray detectors and 7% for the cross O059600100050
calibration used for Ag-112. An error of +-3% was O059600100051
allowed for sample reproducibility. O059600100052
The random errors are connected with beta and gamma O059600100053
activity measurements, chemical yields, foil thickness O059600100054
and alignments. The main source of error lies in the O059600100055
determination of photopeak areas (5-15%) depending on O059600100056
the complexity of the gamma-ray spectra. The error in O059600100057
obtaining the initial disintegration rate varied from O059600100058
2% [extrapolation of Cu-64 decay curve] to 10% for O059600100059
specific nuclides. Weighing and pipetting contributed O059600100060
1.5-2%, 1-3% was contributed by timing in separations.O059600100061
Chemical yields were determined in duplicate or O059600100062
triplicate. They agreed within 3-5%. The error in foil O059600100063
area determination was assessed at 1%. O059600100064
ANALYSIS (DECAY) O059600100065
STATUS (TABLE) O059600100066
ENDBIB 64 0 O059600100067
NOCOMMON 0 0 O059600100068
ENDSUBENT 67 0 O059600199999
SUBENT O0596002 20060209 O024O059600200001
BIB 3 8 O059600200002
REACTION 1(92-U-238(P,F)49-IN-117,IND,SIG) O059600200003
2((92-U-238(P,F)49-IN-117,IND,SIG)/ O059600200004
(92-U-238(P,F)MASS,,SIG,,,EVAL)) O059600200005
RAD-DET (49-IN-117-M,DG) O059600200006
(49-IN-117-G,DG) O059600200007
DECAY-DATA (49-IN-117-M,1.94HR,DG,158.6,0.87) 46% isomer O059600200008
transition. O059600200009
(49-IN-117-G,44.MIN,DG,158.6,0.87) O059600200010
ENDBIB 8 0 O059600200011
COMMON 1 3 O059600200012
MASS O059600200013
NO-DIM O059600200014
117. O059600200015
ENDCOMMON 3 0 O059600200016
DATA 6 6 O059600200017
EN DATA 1ERR-T 1DATA 2ERR-T 2MONIT O059600200018
MEV MB MB NO-DIM NO-DIM MB O059600200019
20. 0.16 0.04 0.003 0.0006 429.O059600200020
30. 0.55 0.07 0.01 0.002 408.O059600200021
40. 1.2 0.2 0.03 0.004 245.O059600200022
55. 2.6 0.5 0.04 0.008 162.O059600200023
70. 5.3 0.8 0.07 0.01 154.O059600200024
85. 7. 1. 0.09 0.01 141.O059600200025
ENDDATA 8 0 O059600200026
ENDSUBENT 25 0 O059600299999
SUBENT O0596003 20060209 O024O059600300001
BIB 4 12 O059600300002
REACTION 1(92-U-238(P,F)49-IN-115,IND,SIG) O059600300003
2((92-U-238(P,F)49-IN-115,IND,SIG)/ O059600300004
(92-U-238(P,F)MASS,,SIG,,,EVAL)) O059600300005
The experimentally-determined values of the in-115-m O059600300006
independent formation cross sections a total cross O059600300007
section value for in-115 was determined by assuming,at O059600300008
each value of the bombardment energy,an isomer ratio O059600300009
[high-to-low spin] equal to that of in-117 determined O059600300010
in this work. See O0596008. O059600300011
RAD-DET (49-IN-115-M,DG) 95% I.T.,5% B-. O059600300012
DECAY-DATA (49-IN-115-M,4.5HR,DG,336.3,1.) O059600300013
STATUS (DEP,O0596008) O059600300014
ENDBIB 12 0 O059600300015
COMMON 1 3 O059600300016
MASS O059600300017
NO-DIM O059600300018
115. O059600300019
ENDCOMMON 3 0 O059600300020
DATA 6 6 O059600300021
EN DATA 1ERR-T 1DATA 2ERR-T 2MONIT O059600300022
MEV MB MB NO-DIM NO-DIM MB O059600300023
20. 0.01 0.003 0.00015 0.00003 429.O059600300024
30. 0.03 0.005 0.0008 0.00002 408.O059600300025
40. 0.05 0.01 0.003 0.0006 245.O059600300026
55. 0.2 0.03 0.003 0.0007 162.O059600300027
70. 0.9 0.2 0.01 0.002 154.O059600300028
85. 2. 0.4 0.03 0.004 141.O059600300029
ENDDATA 8 0 O059600300030
ENDSUBENT 29 0 O059600399999
SUBENT O0596004 20060209 O024O059600400001
BIB 5 11 O059600400002
REACTION 1(92-U-238(P,F)48-CD-115,IND,SIG) O059600400003
2((92-U-238(P,F)48-CD-115,IND,SIG)/ O059600400004
(92-U-238(P,F)MASS,,SIG,,,EVAL)) O059600400005
The independent cross section of Cd-115 was computed O059600400006
from the measured independent yield of Cd-115-m and theO059600400007
ratio of the isomeric products Cd-115-m/Cd-115-g given O059600400008
by tilbury and yaffe. See O0591004. O059600400009
REL-REF (R,O0591004,R.S.TILBURY+,J,CJC,41,1956,1963) O059600400010
RAD-DET (48-CD-115-M,DG) O059600400011
DECAY-DATA (48-CD-115-M,43.D,DG,336.3,0.45) O059600400012
STATUS (DEP,O0591004) O059600400013
ENDBIB 11 0 O059600400014
COMMON 1 3 O059600400015
MASS O059600400016
NO-DIM O059600400017
115. O059600400018
ENDCOMMON 3 0 O059600400019
DATA 6 6 O059600400020
EN DATA 1ERR-T 1DATA 2ERR-T 2MONIT O059600400021
MEV MB MB NO-DIM NO-DIM MB O059600400022
20. 0.5 0.1 0.009 0.001 429.O059600400023
30. 1.2 0.3 0.03 0.005 408.O059600400024
40. 1.9 0.3 0.04 0.006 245.O059600400025
55. 2.8 0.4 0.06 0.008 162.O059600400026
70. 4.5 0.7 0.06 0.009 154.O059600400027
85. 10.6 1.6 0.1 0.02 141.O059600400028
ENDDATA 8 0 O059600400029
ENDSUBENT 28 0 O059600499999
SUBENT O0596005 20060209 O024O059600500001
BIB 3 13 O059600500002
REACTION 1(92-U-238(P,F)46-PD-111,IND,SIG) O059600500003
2((92-U-238(P,F)46-PD-111,IND,SIG)/ O059600500004
(92-U-238(P,F)MASS,,SIG,,,EVAL)) O059600500005
The cross section of Pd-111-m could be considered O059600500006
independent since the decay of the Rh-111 parent is O059600500007
greater than 99% to the ground state. O059600500008
B0019001 have reported the isomer ratio of O059600500009
Pd-111-m/Pd-111-g to be 2.5+-0.6 and to be virtually O059600500010
identical in low- and high-energy fission and thus the O059600500011
total cross section could be computed for this nuclide.O059600500012
DECAY-DATA (46-PD-111-M,5.3HR) 71% isom.Trans.,29% B-. O059600500013
STATUS (DEP,B0019004) Pd-111-g production at 450 MeV O059600500014
(DEP,B0019005) Pd-111-m production at 450 MeV. O059600500015
ENDBIB 13 0 O059600500016
COMMON 1 3 O059600500017
MASS O059600500018
NO-DIM O059600500019
111. O059600500020
ENDCOMMON 3 0 O059600500021
DATA 6 6 O059600500022
EN DATA 1ERR-T 1DATA 2ERR-T 2MONIT O059600500023
MEV MB MB NO-DIM NO-DIM MB O059600500024
20. 1.8 0.03 0.025 0.005 429.O059600500025
30. 2. 0.06 0.05 0.008 408.O059600500026
40. 3.9 0.1 0.08 0.01 245.O059600500027
55. 4.8 0.3 0.08 0.02 162.O059600500028
70. 9. 0.5 0.1 0.01 154.O059600500029
85. 12.3 1. 0.14 0.01 141.O059600500030
ENDDATA 8 0 O059600500031
ENDSUBENT 30 0 O059600599999
SUBENT O0596006 20060209 O024O059600600001
BIB 3 5 O059600600002
REACTION 1(92-U-238(P,F)47-AG-112,IND,SIG) O059600600003
2((92-U-238(P,F)47-AG-112,IND,SIG)/ O059600600004
(92-U-238(P,F)MASS,,SIG,,,EVAL)) O059600600005
RAD-DET (47-AG-112,B-) O059600600006
DECAY-DATA (47-AG-112,3.2HR,B-,,1.) O059600600007
ENDBIB 5 0 O059600600008
COMMON 1 3 O059600600009
MASS O059600600010
NO-DIM O059600600011
112. O059600600012
ENDCOMMON 3 0 O059600600013
DATA 6 6 O059600600014
EN DATA 1ERR-T 1DATA 2ERR-T 2MONIT O059600600015
MEV MB MB NO-DIM NO-DIM MB O059600600016
20. 0.18 0.03 0.0029 0.0004 429.O059600600017
30. 0.4 0.06 0.009 0.001 408.O059600600018
40. 0.8 0.1 0.02 0.003 245.O059600600019
55. 1.8 0.3 0.03 0.004 162.O059600600020
70. 3.8 0.5 0.05 0.005 154.O059600600021
85. 7. 1. 0.08 0.01 141.O059600600022
ENDDATA 8 0 O059600600023
ENDSUBENT 22 0 O059600699999
SUBENT O0596007 20060209 O024O059600700001
BIB 3 5 O059600700002
REACTION 1(92-U-238(P,F)47-AG-111,IND,SIG) O059600700003
2((92-U-238(P,F)47-AG-111,IND,SIG)/ O059600700004
(92-U-238(P,F)MASS,,SIG,,,EVAL)) O059600700005
RAD-DET (47-AG-111-G,B-) O059600700006
DECAY-DATA (47-AG-111-G,7.5D,B-,,1.) O059600700007
ENDBIB 5 0 O059600700008
COMMON 1 3 O059600700009
MASS O059600700010
NO-DIM O059600700011
111. O059600700012
ENDCOMMON 3 0 O059600700013
DATA 6 6 O059600700014
EN DATA 1ERR-T 1DATA 2ERR-T 2MONIT O059600700015
MEV MB MB NO-DIM NO-DIM MB O059600700016
20. 0.05 0.008 0.00025 0.00005 429.O059600700017
30. 0.08 0.01 0.002 0.0003 408.O059600700018
40. 0.2 0.03 0.004 0.0007 245.O059600700019
55. 0.8 0.1 0.02 0.002 162.O059600700020
70. 1.5 0.2 0.02 0.003 154.O059600700021
85. 3.3 0.4 0.03 0.004 141.O059600700022
ENDDATA 8 0 O059600700023
ENDSUBENT 22 0 O059600799999
SUBENT O0596008 20060209 O024O059600800001
BIB 2 2 O059600800002
REACTION (92-U-238(P,F)49-IN-117-G/M,IND,SIG/RAT) O059600800003
REL-REF (A,O0334001,E.HAGEBO,J,JIN,27,927,1965) O059600800004
ENDBIB 2 0 O059600800005
NOCOMMON 0 0 O059600800006
DATA 4 6 O059600800007
EN DATA ERR-T MONIT O059600800008
MEV NO-DIM NO-DIM MB O059600800009
15. 0.8 0.5 O059600800010
29. 1.6 0.4 408. O059600800011
43. 2.5 0.5 245. O059600800012
57. 4.8 0.8 162. O059600800013
70. 8.5 0.8 154. O059600800014
85. 9.8 0.9 141. O059600800015
ENDDATA 8 0 O059600800016
ENDSUBENT 15 0 O059600899999
SUBENT O0596009 20060209 O024O059600900001
BIB 3 3 O059600900002
REACTION (92-U-238(P,F)46-PD-112,CUM,SIG) O059600900003
RAD-DET (47-AG-112,DG) O059600900004
DECAY-DATA (46-PD-112,21.0HR) O059600900005
ENDBIB 3 0 O059600900006
NOCOMMON 0 0 O059600900007
DATA 4 6 O059600900008
EN DATA ERR-T MONIT O059600900009
MEV MB MB MB O059600900010
20. 11. 2. 429. O059600900011
30. 14. 2. 408. O059600900012
40. 23. 3. 245. O059600900013
55. 30. 4. 162. O059600900014
70. 36. 5. 154. O059600900015
85. 44. 7. 141. O059600900016
ENDDATA 8 0 O059600900017
ENDSUBENT 16 0 O059600999999
SUBENT O0596010 20060209 O024O059601000001
BIB 3 4 O059601000002
REACTION (92-U-238(P,F)47-AG-111-G,CUM,SIG) O059601000003
RAD-DET (47-AG-111-G,B-) O059601000004
DECAY-DATA (47-AG-111-G,7.5D,B-,,1.) O059601000005
99.3% isomer transition. /Comment by compiler/ O059601000006
ENDBIB 4 0 O059601000007
NOCOMMON 0 0 O059601000008
DATA 4 6 O059601000009
EN DATA ERR-T MONIT O059601000010
MEV MB MB MB O059601000011
20. 11. 2. 429. O059601000012
30. 16. 2. 408. O059601000013
40. 22. 3. 245. O059601000014
55. 26. 5. 162. O059601000015
70. 28. 4. 154. O059601000016
85. 47. 6. 141. O059601000017
ENDDATA 8 0 O059601000018
ENDSUBENT 17 0 O059601099999
SUBENT O0596011 20060209 O024O059601100001
BIB 3 3 O059601100002
REACTION (92-U-238(P,F)47-AG-115-G,CUM,SIG) O059601100003
RAD-DET (47-AG-115-G,DG) O059601100004
DECAY-DATA (47-AG-115-G,21.MIN,DG,229.7,1.) O059601100005
ENDBIB 3 0 O059601100006
NOCOMMON 0 0 O059601100007
DATA 4 6 O059601100008
EN DATA ERR-T MONIT O059601100009
MEV MB MB MB O059601100010
20. 8. 1. 429. O059601100011
30. 16. 2. 408. O059601100012
40. 21. 3. 245. O059601100013
55. 30. 5. 162. O059601100014
70. 32. 5. 154. O059601100015
85. 38. 6. 141. O059601100016
ENDDATA 8 0 O059601100017
ENDSUBENT 16 0 O059601199999
SUBENT O0596012 20060209 O024O059601200001
BIB 3 5 O059601200002
REACTION (92-U-238(P,F)47-AG-113-G,CUM,SIG) O059601200003
A partial cumulative yield, since there is a partial O059601200004
loss from the decay of Ag-113-m to Cd-113. O059601200005
RAD-DET (47-AG-113-G,DG) O059601200006
DECAY-DATA (47-AG-113-G,5.37HR,DG,298.6,1.) O059601200007
ENDBIB 5 0 O059601200008
NOCOMMON 0 0 O059601200009
DATA 4 6 O059601200010
EN DATA ERR-T MONIT O059601200011
MEV MB MB MB O059601200012
20. 11. 2. 429. O059601200013
30. 18. 3. 408. O059601200014
40. 23. 3. 245. O059601200015
55. 32. 5. 162. O059601200016
70. 39. 6. 154. O059601200017
85. 48. 6. 141. O059601200018
ENDDATA 8 0 O059601200019
ENDSUBENT 18 0 O059601299999
ENDENTRY 12 0 O059699999999