ENTRY C2308 20180601 C176C230800000001 SUBENT C2308001 20180601 C176C230800100001 BIB 10 24 C230800100002 TITLE Radiochemical Studies of the Fission of U235 Induced C230800100003 by Helium Ions C230800100004 AUTHOR (R.Gunnink,J.W.Cobble) C230800100005 REFERENCE (J,PR,115,1247,1959) C230800100006 #doi:10.1103/PhysRev.115.1247 C230800100007 INSTITUTE (1USAPUR) C230800100008 FACILITY (CYCLO,1USAANL) The Argonne National Laboratory C230800100009 Cyclotron. C230800100010 SAMPLE (92-U-235,ENR=0.9341) The uranium targets were C230800100011 prepared by the electrodeposition method: uranium-235 C230800100012 nitrate solution, 2 ml of 0.4M (NH4)2C204, and 0.5 ml C230800100013 of H2O. C230800100014 DETECTOR (PROPC,NAICR) 2pi window proportional flow counter, 5- C230800100015 in. well-type NaI(Tl) crystal. C230800100016 METHOD (CHSEP,ACTIV,BSPEC) A known amount (5-10 mg) of carrierC230800100017 elements in various but common oxidation states C230800100018 corresponding to each radioisotope to be used to C230800100019 determine the isobaric fission mass yield was C230800100020 combined to form a solution in which the irradiated C230800100021 target was dissolved. C230800100022 CORRECTION Counting corrections were experimentally determined C230800100023 for a large number of the fission product nuclides C230800100024 for counting in a 2pi window proportional flow counter.C230800100025 HISTORY (20180601C) BP C230800100026 ENDBIB 24 0 C230800100027 NOCOMMON 0 0 C230800100028 ENDSUBENT 27 0 C230800199999 SUBENT C2308002 20180601 C176C230800200001 BIB 3 13 C230800200002 REACTION (92-U-235(A,F)ELEM/MASS,(CUM),SIG) C230800200003 ERR-ANALYS (DATA-ERR) There are numerous sources of errors: C230800200004 counting efficiency, chemical constitution, C230800200005 reproducibility of the sample, isotopic purity of C230800200006 radioisotopes counted, accuracy of resolving of C230800200007 complex decay data, independent yield corrections, C230800200008 standardization of carrier solutions, the use of C230800200009 correct decay schemes and half lives, uniformity and C230800200010 absolute assay of target plate, accurate monitoring C230800200011 of beam current. The fission yields were determined C230800200012 with an accuracy of 5-15% for several energies C230800200013 ranging from 20 to 40 MeV. C230800200014 STATUS (TABLE) Table I, page 1250. C230800200015 ENDBIB 13 0 C230800200016 NOCOMMON 0 0 C230800200017 DATA 6 107 C230800200018 EN ELEMENT MASS ISOMER DATA DATA-ERR C230800200019 MEV NO-DIM NO-DIM NO-DIM MB MB C230800200020 20.5 38.0 89.0 0.38 0.02C230800200021 20.5 38.0 91.0 0.57 0.09C230800200022 20.5 40.0 95.0 0.56 C230800200023 20.5 40.0 97.0 0.83 0.03C230800200024 20.5 56.0 140.0 0.57 0.1C230800200025 20.5 58.0 141.0 0.64 C230800200026 20.5 58.0 143.0 0.61 C230800200027 20.5 60.0 147.0 0.3 C230800200028 20.5 62.0 153.0 0.05 C230800200029 20.5 63.0 157.0 0.0165 C230800200030 23.1 35.0 83.0 0.66 C230800200031 23.1 38.0 89.0 2.1 0.03C230800200032 23.1 38.0 91.0 3.09 0.08C230800200033 23.1 38.0 92.0 3.09 0.20C230800200034 23.1 40.0 95.0 5.0 0.15C230800200035 23.1 40.0 97.0 5.0 0.19C230800200036 23.1 44.0 103.0 3.15 C230800200037 23.1 44.0 105.0 2.0 C230800200038 23.1 48.0 115.0 1.1 C230800200039 23.1 53.0 131.0 2.56 C230800200040 23.1 53.0 133.0 3.5 0.3C230800200041 23.1 56.0 140.0 3.4 C230800200042 23.1 58.0 141.0 4.0 C230800200043 23.1 58.0 143.0 3.0 0.4C230800200044 23.1 60.0 147.0 1.60 0.04C230800200045 23.1 62.0 153.0 0.44 0.02C230800200046 23.1 63.0 157.0 0.038 C230800200047 25.95 38.0 89.0 5.9 C230800200048 25.95 38.0 91.0 7.8 C230800200049 25.95 38.0 92.0 10.0 C230800200050 25.95 40.0 97.0 15.3 C230800200051 25.95 46.0 112.0 5.9 C230800200052 25.95 48.0 115.0 4.6 C230800200053 25.95 56.0 140.0 8.7 C230800200054 28.2 35.0 83.0 3.12 C230800200055 28.2 38.0 89.0 11.3 0.7C230800200056 28.2 38.0 91.0 14.7 0.3C230800200057 28.2 38.0 92.0 15.6 2.C230800200058 28.2 40.0 95.0 25.0 1.0C230800200059 28.2 40.0 97.0 26.5 1.7C230800200060 28.2 44.0 103.0 22.5 C230800200061 28.2 44.0 105.0 17.8 C230800200062 28.2 46.0 112.0 11.4 2.6C230800200063 28.2 48.0 115.0 11.4 C230800200064 28.2 53.0 131.0 16.7 0.4C230800200065 28.2 53.0 133.0 18.4 0.7C230800200066 28.2 56.0 139.0 17.0 C230800200067 28.2 56.0 140.0 13.5 0.5C230800200068 28.2 57.0 140.0 2.2 0.15C230800200069 28.2 58.0 141.0 17.5 0.7C230800200070 28.2 58.0 143.0 15.5 0.5C230800200071 28.2 60.0 147.0 8.2 0.5C230800200072 28.2 62.0 153.0 2.7 0.4C230800200073 28.2 63.0 156.0 0.74 C230800200074 28.2 63.0 157.0 0.39 C230800200075 28.2 64.0 159.0 0.29 C230800200076 28.2 65.0 161.0 0.09 C230800200077 33.8 35.0 83.0 5.3 C230800200078 33.8 38.0 89.0 17.6 1.4C230800200079 33.8 38.0 91.0 24.7 0.3C230800200080 33.8 38.0 92.0 26.9 0.8C230800200081 33.8 39.0 93.0 27.6 C230800200082 33.8 40.0 95.0 39.0 0.8C230800200083 33.8 40.0 97.0 41.0 2.3C230800200084 33.8 44.0 103.0 37.7 C230800200085 33.8 44.0 105.0 25.0 C230800200086 33.8 46.0 112.0 28.8 2.2C230800200087 33.8 48.0 115.0 27.6 1.6C230800200088 33.8 53.0 131.0 25.6 1.4C230800200089 33.8 53.0 133.0 23.7 0.7C230800200090 33.8 56.0 139.0 28.5 C230800200091 33.8 56.0 140.0 20.5 0.7C230800200092 33.8 57.0 140.0 5.7 0.1C230800200093 33.8 58.0 141.0 24.0 1.0C230800200094 33.8 58.0 143.0 22.0 1.3C230800200095 33.8 59.0 145.0 17.5 C230800200096 33.8 60.0 147.0 13.4 0.8C230800200097 33.8 62.0 153.0 4.0 0.06C230800200098 33.8 63.0 156.0 1.54 0.14C230800200099 33.8 63.0 157.0 1.16 0.12C230800200100 33.8 64.0 159.0 0.68 0.03C230800200101 39.9 35.0 83.0 7.6 C230800200102 39.9 38.0 89.0 20.6 0.1C230800200103 39.9 38.0 91.0 29.9 1.1C230800200104 39.9 38.0 92.0 28.0 1.5C230800200105 39.9 40.0 95.0 48.0 2.6C230800200106 39.9 40.0 97.0 49.0 1.2C230800200107 39.9 44.0 103.0 48.5 0.6C230800200108 39.9 44.0 105.0 39.8 1.8C230800200109 39.9 44.0 106.0 42.6 2.2C230800200110 39.9 46.0 112.0 40.8 2.3C230800200111 39.9 48.0 115.0 41.0 0.6C230800200112 39.9 48.0 115.0 1.0 5.0 0.15C230800200113 39.9 53.0 131.0 33.0 1.6C230800200114 39.9 53.0 133.0 23.9 1.6C230800200115 39.9 56.0 139.0 31.2 C230800200116 39.9 56.0 140.0 22.0 0.2C230800200117 39.9 57.0 140.0 8.1 0.7C230800200118 39.9 58.0 141.0 32.0 0.9C230800200119 39.9 58.0 143.0 27.0 0.8C230800200120 39.9 59.0 145.0 23.4 C230800200121 39.9 60.0 147.0 15.8 0.6C230800200122 39.9 62.0 153.0 5.2 0.14C230800200123 39.9 63.0 156.0 2.1 0.15C230800200124 39.9 63.0 157.0 1.66 0.66C230800200125 39.9 64.0 159.0 1.05 0.0C230800200126 39.9 65.0 161.0 0.5 C230800200127 ENDDATA 109 0 C230800200128 ENDSUBENT 127 0 C230800299999 SUBENT C2308003 20180601 C176C230800300001 BIB 3 14 C230800300002 REACTION (92-U-235(A,F)MASS,CHN,SIG) C230800300003 ERR-ANALYS (DATA-ERR,5.,15.) There are numerous sources of C230800300004 errors: counting efficiency, chemical constitution, C230800300005 reproducibility of the sample, isotopic purity of C230800300006 radioisotopes counted, accuracy of resolving of C230800300007 complex decay data, independent yield corrections, C230800300008 standardization of carrier solutions, the use of C230800300009 correct decay schemes and half lives, uniformity and C230800300010 absolute assay of target plate, accurate monitoring C230800300011 of beam current. The fission yields were C230800300012 determined with an accuracy of 5-15% for several C230800300013 energies ranging from 20 to 40 MeV. C230800300014 STATUS (TABLE) Table I, page 1250. C230800300015 (DEP,C2308002) C230800300016 ENDBIB 14 0 C230800300017 NOCOMMON 0 0 C230800300018 DATA 3 104 C230800300019 EN MASS DATA C230800300020 MEV NO-DIM MB C230800300021 20.5 89.0 0.28 C230800300022 20.5 91.0 0.37 C230800300023 20.5 95.0 0.37 C230800300024 20.5 97.0 0.56 C230800300025 20.5 131.0 0.45 C230800300026 20.5 133.0 0.79 C230800300027 20.5 140.0 0.49 C230800300028 20.5 141.0 0.35 C230800300029 20.5 143.0 0.39 C230800300030 20.5 147.0 0.2 C230800300031 20.5 153.0 0.042 C230800300032 20.5 157.0 0.01 C230800300033 23.1 83.0 0.62 C230800300034 23.1 89.0 2.0 C230800300035 23.1 91.0 2.95 C230800300036 23.1 92.0 3.07 C230800300037 23.1 95.0 4.7 C230800300038 23.1 97.0 4.9 C230800300039 23.1 103.0 2.97 C230800300040 23.1 105.0 1.91 C230800300041 23.1 131.0 2.56 C230800300042 23.1 133.0 5.07 C230800300043 23.1 140.0 4.4 C230800300044 23.1 141.0 4.0 C230800300045 23.1 143.0 3.04 C230800300046 23.1 147.0 1.56 C230800300047 23.1 153.0 0.45 C230800300048 23.1 157.0 0.045 C230800300049 25.95 89.0 5.8 C230800300050 25.95 91.0 7.7 C230800300051 25.95 92.0 10.2 C230800300052 25.95 97.0 15.2 C230800300053 25.95 112.0 5.9 C230800300054 25.95 115.0 5.0 C230800300055 25.95 140.0 11.5 C230800300056 28.2 83.0 3.12 C230800300057 28.2 89.0 11.3 C230800300058 28.2 91.0 15.0 C230800300059 28.2 92.0 16.4 C230800300060 28.2 95.0 25.1 C230800300061 28.2 97.0 27.8 C230800300062 28.2 103.0 22.5 C230800300063 28.2 105.0 18.0 C230800300064 28.2 112.0 11.6 C230800300065 28.2 115.0 12.6 C230800300066 28.2 131.0 26.0 C230800300067 28.2 133.0 32.3 C230800300068 28.2 139.0 22.0 C230800300069 28.2 140.0 21.0 C230800300070 28.2 141.0 18.0 C230800300071 28.2 143.0 17.0 C230800300072 28.2 147.0 8.7 C230800300073 28.2 153.0 3.0 C230800300074 28.2 156.0 0.86 C230800300075 28.2 157.0 0.52 C230800300076 28.2 159.0 0.36 C230800300077 28.2 161.0 0.11 C230800300078 33.8 83.0 5.3 C230800300079 33.8 89.0 17.7 C230800300080 33.8 91.0 25.1 C230800300081 33.8 92.0 28.2 C230800300082 33.8 93.0 27.9 C230800300083 33.8 95.0 39.3 C230800300084 33.8 97.0 43.0 C230800300085 33.8 103.0 37.7 C230800300086 33.8 105.0 25.5 C230800300087 33.8 112.0 30.2 C230800300088 33.8 115.0 30.5 C230800300089 33.8 131.0 39.7 C230800300090 33.8 133.0 46.0 C230800300091 33.8 139.0 37.0 C230800300092 33.8 140.0 33.0 C230800300093 33.8 141.0 24.7 C230800300094 33.8 143.0 24.4 C230800300095 33.8 145.0 19.0 C230800300096 33.8 147.0 14.3 C230800300097 33.8 153.0 4.5 C230800300098 33.8 156.0 2.13 C230800300099 33.8 157.0 1.16 C230800300100 33.8 159.0 0.88 C230800300101 39.9 83.0 7.7 C230800300102 39.9 89.0 20.8 C230800300103 39.9 91.0 31.0 C230800300104 39.9 92.0 29.5 C230800300105 39.9 95.0 48.6 C230800300106 39.9 97.0 51.5 C230800300107 39.9 103.0 48.5 C230800300108 39.9 105.0 40.5 C230800300109 39.9 106.0 44.0 C230800300110 39.9 112.0 43.3 C230800300111 39.9 115.0 46.7 C230800300112 39.9 131.0 51.0 C230800300113 39.9 133.0 52.0 C230800300114 39.9 139.0 42.2 C230800300115 39.9 140.0 39.0 C230800300116 39.9 141.0 33.4 C230800300117 39.9 143.0 30.3 C230800300118 39.9 145.0 25.8 C230800300119 39.9 147.0 17.2 C230800300120 39.9 153.0 6.1 C230800300121 39.9 156.0 2.65 C230800300122 39.9 157.0 2.55 C230800300123 39.9 159.0 1.67 C230800300124 39.9 161.0 0.63 C230800300125 ENDDATA 106 0 C230800300126 ENDSUBENT 125 0 C230800399999 SUBENT C2308004 20180601 C176C230800400001 BIB 4 6 C230800400002 REACTION (92-U-235(A,F),PR,NU,,,DERIV) C230800400003 ANALYSIS Nubar was not measured directly but inferred from the C230800400004 symmetry of the FY curve as explained on page 1253. C230800400005 ERR-ANALYS (DATA-ERR) The accuracy of the data indicates that C230800400006 variation is 0.5 to 1.0 neutrons. C230800400007 STATUS (TABLE) page 1253. C230800400008 ENDBIB 6 0 C230800400009 NOCOMMON 0 0 C230800400010 DATA 3 2 C230800400011 EN DATA DATA-ERR C230800400012 MEV PRT/FIS PRT/FIS C230800400013 23.1 4.0 0.5 C230800400014 39.9 5.5 1.0 C230800400015 ENDDATA 4 0 C230800400016 ENDSUBENT 15 0 C230800499999 SUBENT C2308005 20180601 C176C230800500001 BIB 4 15 C230800500002 REACTION (92-U-235(A,F),,SIG,,,DERIV) C230800500003 Total fission cross sections. C230800500004 ANALYSIS The total fission cs was not measured directly as C230800500005 explained on p.1251. C230800500006 ERR-ANALYS (DATA-ERR) There are numerous sources of C230800500007 errors: counting efficiency, chemical constitution, C230800500008 reproducibility of the sample, isotopic purity of C230800500009 radioisotopes counted, accuracy of resolving of C230800500010 complex decay data, independent yield corrections, C230800500011 standardization of carrier solutions, the use of C230800500012 correct decay schemes and half lives, uniformity and C230800500013 absolute assay of target plate, accurate monitoring C230800500014 of beam current. The total cross sections are C230800500015 accurate within 10%. C230800500016 STATUS (TABLE) Table II, page 1251. C230800500017 ENDBIB 15 0 C230800500018 COMMON 1 3 C230800500019 DATA-ERR C230800500020 PER-CENT C230800500021 10.0 C230800500022 ENDCOMMON 3 0 C230800500023 DATA 2 6 C230800500024 EN DATA C230800500025 MEV MB C230800500026 20.5 10.0 C230800500027 23.1 87.0 C230800500028 25.9 310.0 C230800500029 28.2 580.0 C230800500030 33.8 1030.0 C230800500031 39.9 1380.0 C230800500032 ENDDATA 8 0 C230800500033 ENDSUBENT 32 0 C230800599999 ENDENTRY 5 0 C230899999999