ENTRY C2322 20180618 C177C232200000001 SUBENT C2322001 20180618 C177C232200100001 BIB 10 28 C232200100002 TITLE Mass- and Charge-Distribution Studies in the Fission C232200100003 of Au197 by Intermediate-Energy Helium Ions C232200100004 AUTHOR (F.L.Lisman,H.W.Brandhorst Jr,J.W.Cobble) C232200100005 REFERENCE (J,PR,140,B863,1965) C232200100006 #doi:10.1103/PhysRev.140.B863 C232200100007 INSTITUTE (1USAPUR) C232200100008 FACILITY (CYCLO,1USAANL) The 60-in. cyclotron at Argonne C232200100009 National Laboratory. C232200100010 SAMPLE Thin target foils (1.5 mg/cm2) were prepared by C232200100011 vacuum on high- purity gold (99.999%) from a hot C232200100012 tungsten wire onto high- purity radiochemically C232200100013 analyzed aluminum foil. C232200100014 DETECTOR (GEMUC,PROPC) C232200100015 METHOD (CHSEP,ACTIV) Standard radiochemical procedures C232200100016 common to higher Z fission were used in this study, C232200100017 except that much higher levels of decontamination C232200100018 from extraneous spallation products were required. C232200100019 Measurements of radioactivity were carried out by C232200100020 beta counting in either low-background C232200100021 anticoincidence shielded Geiger counters or C232200100022 thin-window flow proportional counters. C232200100023 COMMENT Compiler's comment: Authors assume independent C232200100024 yields for 72Zn, 82Br and 96Nb. According to modern C232200100025 skeleton schemes 82Br and 96Nb are shielded nuclei C232200100026 while 72Zn is not shielded. Consequently, it is C232200100027 proper to move 72Zn (T1/2=46.5 HR) from independent C232200100028 to potentially cumulative yields. C232200100029 HISTORY (20180618C) BP C232200100030 ENDBIB 28 0 C232200100031 COMMON 1 3 C232200100032 EN-ERR C232200100033 MEV C232200100034 0.4 C232200100035 ENDCOMMON 3 0 C232200100036 ENDSUBENT 35 0 C232200199999 SUBENT C2322002 20180618 C177C232200200001 BIB 3 6 C232200200002 REACTION (79-AU-197(A,F)ELEM/MASS,,SIG) C232200200003 ERR-ANALYS (DATA-ERR) Errors indicated include either the C232200200004 standard deviations for replicate bombardments, or C232200200005 reasonable estimates from the nature of the isotope C232200200006 involved. C232200200007 STATUS (TABLE) Table I, page B865. C232200200008 ENDBIB 6 0 C232200200009 NOCOMMON 0 0 C232200200010 DATA 5 3 C232200200011 EN ELEMENT MASS DATA DATA-ERR C232200200012 MEV NO-DIM NO-DIM MICRO-B MICRO-B C232200200013 37.0 35.0 82.0 0.032 0.010 C232200200014 40.0 35.0 82.0 0.21 0.04 C232200200015 40.0 41.0 96.0 0.289 0.059 C232200200016 ENDDATA 5 0 C232200200017 ENDSUBENT 16 0 C232200299999 SUBENT C2322003 20180618 C177C232200300001 BIB 3 6 C232200300002 REACTION (79-AU-197(A,F)ELEM/MASS,CUM,SIG) C232200300003 ERR-ANALYS (DATA-ERR) Errors indicated include either the C232200300004 standard deviations for replicate bombardments, or C232200300005 reasonable estimates from the nature of the isotope C232200300006 involved. C232200300007 STATUS (TABLE) Table I, page B865. C232200300008 ENDBIB 6 0 C232200300009 NOCOMMON 0 0 C232200300010 DATA 6 6 C232200300011 EN ELEMENT MASS DATA DATA-ERR DATA-MAX C232200300012 MEV NO-DIM NO-DIM MICRO-B MICRO-B MICRO-B C232200300013 33.5 38.0 91.0 0.67 0.18 C232200300014 37.0 38.0 91.0 3.83 0.69 C232200300015 37.0 51.0 127.0 0.008 0.0007 C232200300016 40.0 28.0 66.0 0.006C232200300017 40.0 38.0 91.0 10.6 1.2 C232200300018 40.0 51.0 127.0 0.021 0.002 C232200300019 ENDDATA 8 0 C232200300020 ENDSUBENT 19 0 C232200399999 SUBENT C2322004 20180618 C177C232200400001 BIB 2 3 C232200400002 REACTION (79-AU-197(A,F)MASS,CHN,SIG) Chain correction for C232200400003 cumulative products, subentry 3. C232200400004 STATUS (TABLE) Table I, page B865. C232200400005 ENDBIB 3 0 C232200400006 NOCOMMON 0 0 C232200400007 DATA 3 5 C232200400008 EN MASS DATA C232200400009 MEV NO-DIM MICRO-B C232200400010 33.5 91.0 0.67 C232200400011 37.0 91.0 3.83 C232200400012 37.0 127.0 0.021 C232200400013 40.0 91.0 10.7 C232200400014 40.0 127.0 0.063 C232200400015 ENDDATA 7 0 C232200400016 ENDSUBENT 15 0 C232200499999 SUBENT C2322005 20180618 C177C232200500001 BIB 3 7 C232200500002 REACTION (79-AU-197(A,F)ELEM/MASS,(CUM),SIG) Potentially C232200500003 cumulative but not identified in the article. C232200500004 ERR-ANALYS (DATA-ERR) Errors indicated include either the C232200500005 standard deviations for replicate bombardments, or C232200500006 reasonable estimates from the nature of the isotope C232200500007 involved. C232200500008 STATUS (TABLE) Table I, page B865. C232200500009 ENDBIB 7 0 C232200500010 NOCOMMON 0 0 C232200500011 DATA 6 25 C232200500012 EN ELEMENT MASS DATA DATA-ERR DATA-MAX C232200500013 MEV NO-DIM NO-DIM MICRO-B MICRO-B MICRO-B C232200500014 33.5 30.0 72.0 0.0067 0.0014 C232200500015 33.5 33.0 77.0 0.037 0.009 C232200500016 33.5 35.0 83.0 0.182 0.028 C232200500017 33.5 38.0 89.0 0.44 0.11 C232200500018 33.5 40.0 97.0 0.734 0.091 C232200500019 33.5 42.0 99.0 0.92 0.41 C232200500020 33.5 46.0 112.0 0.279 0.028 C232200500021 33.5 48.0 115.0 0.26 0.12 C232200500022 37.0 30.0 72.0 0.015 0.005 C232200500023 37.0 33.0 77.0 0.45 0.18 C232200500024 37.0 35.0 83.0 1.22 0.04 C232200500025 37.0 38.0 89.0 3.2 1.5 C232200500026 37.0 40.0 97.0 5.25 0.27 C232200500027 37.0 42.0 99.0 6.34 0.09 C232200500028 37.0 46.0 112.0 1.85 0.13 C232200500029 37.0 48.0 115.0 1.47 0.30 C232200500030 40.0 30.0 72.0 0.071 0.005 C232200500031 40.0 33.0 77.0 0.43 0.15 C232200500032 40.0 35.0 83.0 4.2 1.1 C232200500033 40.0 38.0 89.0 7.49 0.56 C232200500034 40.0 40.0 97.0 13.0 2.9 C232200500035 40.0 42.0 99.0 16.3 2.1 C232200500036 40.0 46.0 112.0 4.6 1.4 C232200500037 40.0 48.0 115.0 4.5 1.0 C232200500038 40.0 53.0 131.0 0.01C232200500039 ENDDATA 27 0 C232200500040 ENDSUBENT 39 0 C232200599999 SUBENT C2322006 20180618 C177C232200600001 BIB 2 4 C232200600002 REACTION (79-AU-197(A,F)MASS,CHN,SIG) Chain correction for C232200600003 cumulative products that were not identified in the C232200600004 article, subentry 5. C232200600005 STATUS (TABLE) Table I, page B865. C232200600006 ENDBIB 4 0 C232200600007 NOCOMMON 0 0 C232200600008 DATA 3 24 C232200600009 EN MASS DATA C232200600010 MEV NO-DIM MICRO-B C232200600011 33.5 72.0 0.0067 C232200600012 33.5 77.0 0.037 C232200600013 33.5 83.0 0.182 C232200600014 33.5 89.0 0.44 C232200600015 33.5 97.0 0.765 C232200600016 33.5 99.0 0.92 C232200600017 33.5 112.0 0.294 C232200600018 33.5 115.0 0.26 C232200600019 37.0 72.0 0.015 C232200600020 37.0 77.0 0.45 C232200600021 37.0 83.0 1.22 C232200600022 37.0 89.0 3.2 C232200600023 37.0 97.0 5.58 C232200600024 37.0 99.0 6.34 C232200600025 37.0 112.0 2.01 C232200600026 37.0 115.0 1.47 C232200600027 40.0 72.0 0.074 C232200600028 40.0 77.0 0.43 C232200600029 40.0 83.0 4.2 C232200600030 40.0 89.0 7.49 C232200600031 40.0 97.0 14.1 C232200600032 40.0 99.0 16.3 C232200600033 40.0 112.0 5.2 C232200600034 40.0 115.0 4.5 C232200600035 ENDDATA 26 0 C232200600036 ENDSUBENT 35 0 C232200699999 SUBENT C2322007 20180618 C177C232200700001 BIB 4 8 C232200700002 REACTION (79-AU-197(A,F),,SIG,,,DERIV) C232200700003 ANALYSIS Reflection of measured mass yield curve and integrationC232200700004 assuming symmetric fission C232200700005 ERR-ANALYS (DATA-ERR) Errors indicated include either the C232200700006 standard deviations for replicate bombardments, or C232200700007 reasonable estimates from the nature of the isotope C232200700008 involved. C232200700009 STATUS (TABLE) Table II, page B866. C232200700010 ENDBIB 8 0 C232200700011 NOCOMMON 0 0 C232200700012 DATA 3 3 C232200700013 EN DATA DATA-ERR C232200700014 MEV MICRO-B MICRO-B C232200700015 33.5 10.5 2.0 C232200700016 37.0 72.0 18.0 C232200700017 40.0 191.0 32.0 C232200700018 ENDDATA 5 0 C232200700019 ENDSUBENT 18 0 C232200799999 SUBENT C2322008 20180618 C177C232200800001 BIB 4 8 C232200800002 REACTION (79-AU-197(A,F),PR,NU,,,DERIV) C232200800003 ANALYSIS Subtraction of fragment masses from the mass of the C232200800004 fissioning system assuming symmetric fission C232200800005 ERR-ANALYS (DATA-ERR) Errors indicated include either the C232200800006 standard deviations for replicate bombardments, or C232200800007 reasonable estimates from the nature of the isotope C232200800008 involved. C232200800009 STATUS (TABLE) Table II, page B866. C232200800010 ENDBIB 8 0 C232200800011 NOCOMMON 0 0 C232200800012 DATA 3 3 C232200800013 EN DATA DATA-ERR C232200800014 MEV PRT/FIS PRT/FIS C232200800015 33.5 1.5 0.5 C232200800016 37.0 2.0 0.5 C232200800017 40.0 2.5 0.5 C232200800018 ENDDATA 5 0 C232200800019 ENDSUBENT 18 0 C232200899999 ENDENTRY 8 0 C232299999999