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