ENTRY C2431 20191210 C188C243100000001 SUBENT C2431001 20191210 C188C243100100001 BIB 11 39 C243100100002 TITLE Helium ion-induced fission of 194Pt, 195Pt and 196Pt C243100100003 at 41 and 34 MeV C243100100004 AUTHOR (E.F.Neuzil,M.E.Phelps,F.Ross) C243100100005 REFERENCE (J,JIN,27,1463,1965) C243100100006 #doi:10.1016/0022-1902(65)80004-5 C243100100007 INSTITUTE (1USAWWS) C243100100008 FACILITY (CYCLO,1USAWAU) The 60 in. cyclotron at the C243100100009 University of Washington. C243100100010 INC-SPECT Helium ion currents of 25 microA for 1 hr were used C243100100011 at full cyclotron energy, but at reduced helium ion C243100100012 energies a current of 15 microA was required to C243100100013 minimize target burning. C243100100014 DETECTOR (GEMUC) two opposing 2pi gas flow Geiger tubes. The C243100100015 efficiency of these counters was approximately 70 per C243100100016 cent for a 1-MeV beta emitter and the backgrounds C243100100017 were on the order of 2.0 +- 0.1 counts per minute. C243100100018 METHOD (CHSEP,ACTIV) Targets of each of the three enriched C243100100019 platinum isotopes were bombarded by 41 and 34 MeV C243100100020 helium ions. After bombardment, the aluminum foil C243100100021 containing the recoil fission products was dissolved C243100100022 in a solution of HC1-HNO3 and carriers of the C243100100023 isotopes to be separated. The radiochemical C243100100024 techniques used for the purification of yttrium, zinc, C243100100025 germanium, arsenic, strontium, zirconium, palladium C243100100026 and silver. Ruthenium had a separate purification C243100100027 procedure. C243100100028 ANALYSIS From the knowledge of the isotopic composition of C243100100029 each target, and using an IBM 1620 computer to solve C243100100030 the three simultaneous equations in three unknowns, C243100100031 it was possible to determine the fission fragment C243100100032 cross sections of each of the three platinum isotopes C243100100033 separately. Contributions from the 190Pt, 192Pt and C243100100034 198Pt were disregarded since their relative C243100100035 abundances were small enough to assume that they C243100100036 would contribute relatively little to the observed C243100100037 fission fragment cross sections. C243100100038 ERR-ANALYS (DATA-ERR) The error of the resolved data is of the C243100100039 order of -+20%. C243100100040 HISTORY (20191210C) BP C243100100041 ENDBIB 39 0 C243100100042 COMMON 1 3 C243100100043 DATA-ERR C243100100044 PER-CENT C243100100045 20.0 C243100100046 ENDCOMMON 3 0 C243100100047 ENDSUBENT 46 0 C243100199999 SUBENT C2431002 20191210 C188C243100200001 BIB 4 11 C243100200002 REACTION (78-PT-194(A,F)ELEM/MASS,,SIG) C243100200003 SAMPLE (78-PT-190,ENR=0.0005) C243100200004 (78-PT-192,ENR=0.0020) C243100200005 (78-PT-194,ENR=0.5718) Targets of enriched isotopes C243100200006 were prepared for bombardment in the form of thin foilsC243100200007 (~6mg/cm2). C243100200008 (78-PT-195,ENR=0.3416) C243100200009 (78-PT-196,ENR=0.0803) C243100200010 (78-PT-198,ENR=0.0043) C243100200011 DECAY-DATA (39-Y-93-G,10.HR) C243100200012 STATUS (TABLE) Table 2, page 1467. C243100200013 ENDBIB 11 0 C243100200014 COMMON 1 3 C243100200015 EN C243100200016 MEV C243100200017 41.0 C243100200018 ENDCOMMON 3 0 C243100200019 DATA 3 12 C243100200020 ELEMENT MASS DATA C243100200021 NO-DIM NO-DIM MICRO-B C243100200022 30.0 72.0 0.039 C243100200023 32.0 77.0 0.017 C243100200024 32.0 78.0 0.014 C243100200025 38.0 91.0 0.71 C243100200026 38.0 92.0 0.56 C243100200027 39.0 93.0 0.88 C243100200028 40.0 97.0 0.87 C243100200029 44.0 105.0 0.91 C243100200030 46.0 109.0 0.68 C243100200031 46.0 112.0 0.40 C243100200032 47.0 111.0 0.47 C243100200033 47.0 113.0 0.22 C243100200034 ENDDATA 14 0 C243100200035 ENDSUBENT 34 0 C243100299999 SUBENT C2431003 20191210 C188C243100300001 BIB 4 11 C243100300002 REACTION (78-PT-195(A,F)ELEM/MASS,,SIG) C243100300003 SAMPLE (78-PT-190,ENR=0.0005) C243100300004 (78-PT-192,ENR=0.0006) C243100300005 (78-PT-194,ENR=0.2787) C243100300006 (78-PT-195,ENR=0.5986) Targets of enriched isotopes C243100300007 were prepared for bombardment in the form of thin foilsC243100300008 (~6mg/cm2). C243100300009 (78-PT-196,ENR=0.1175) C243100300010 (78-PT-198,ENR=0.0046) C243100300011 DECAY-DATA (39-Y-93-G,10.HR) C243100300012 STATUS (TABLE) Table 2, page 1467. C243100300013 ENDBIB 11 0 C243100300014 COMMON 1 3 C243100300015 EN C243100300016 MEV C243100300017 41.0 C243100300018 ENDCOMMON 3 0 C243100300019 DATA 3 12 C243100300020 ELEMENT MASS DATA C243100300021 NO-DIM NO-DIM MICRO-B C243100300022 30.0 72.0 1.04 C243100300023 32.0 77.0 0.098 C243100300024 32.0 78.0 0.099 C243100300025 38.0 91.0 2.79 C243100300026 38.0 92.0 1.70 C243100300027 39.0 93.0 3.38 C243100300028 40.0 97.0 3.85 C243100300029 44.0 105.0 1.30 C243100300030 46.0 109.0 0.96 C243100300031 46.0 112.0 0.61 C243100300032 47.0 111.0 1.07 C243100300033 47.0 113.0 0.63 C243100300034 ENDDATA 14 0 C243100300035 ENDSUBENT 34 0 C243100399999 SUBENT C2431004 20191210 C188C243100400001 BIB 4 11 C243100400002 REACTION (78-PT-196(A,F)ELEM/MASS,,SIG) C243100400003 SAMPLE (78-PT-190,ENR=0.0005) C243100400004 (78-PT-192,ENR=0.0005) C243100400005 (78-PT-194,ENR=0.0657) C243100400006 (78-PT-195,ENR=0.2618) C243100400007 (78-PT-196,ENR=0.6555) Targets of enriched isotopes C243100400008 were prepared for bombardment in the form of thin foilsC243100400009 (~6mg/cm2). C243100400010 (78-PT-198,ENR=0.0170) C243100400011 DECAY-DATA (39-Y-93-G,10.HR) C243100400012 STATUS (TABLE) Table 2, page 1467. C243100400013 ENDBIB 11 0 C243100400014 COMMON 1 3 C243100400015 EN C243100400016 MEV C243100400017 41.0 C243100400018 ENDCOMMON 3 0 C243100400019 DATA 3 12 C243100400020 ELEMENT MASS DATA C243100400021 NO-DIM NO-DIM MICRO-B C243100400022 30.0 72.0 0.053 C243100400023 32.0 77.0 0.024 C243100400024 32.0 78.0 0.013 C243100400025 38.0 91.0 0.86 C243100400026 38.0 92.0 0.62 C243100400027 39.0 93.0 0.88 C243100400028 40.0 97.0 1.04 C243100400029 44.0 105.0 0.94 C243100400030 46.0 109.0 0.54 C243100400031 46.0 112.0 0.30 C243100400032 47.0 111.0 0.54 C243100400033 47.0 113.0 0.41 C243100400034 ENDDATA 14 0 C243100400035 ENDSUBENT 34 0 C243100499999 SUBENT C2431005 20191210 C188C243100500001 BIB 4 11 C243100500002 REACTION (78-PT-194(A,F)ELEM/MASS,,SIG) C243100500003 SAMPLE (78-PT-190,ENR=0.0005) C243100500004 (78-PT-192,ENR=0.0020) C243100500005 (78-PT-194,ENR=0.5718) Targets of enriched isotopes C243100500006 were prepared for bombardment in the form of thin foilsC243100500007 (~6mg/cm2). C243100500008 (78-PT-195,ENR=0.3416) C243100500009 (78-PT-196,ENR=0.0803) C243100500010 (78-PT-198,ENR=0.0043) C243100500011 DECAY-DATA (39-Y-93-G,10.HR) C243100500012 STATUS (TABLE) Table 2, page 1467. C243100500013 ENDBIB 11 0 C243100500014 COMMON 1 3 C243100500015 EN C243100500016 MEV C243100500017 34.0 C243100500018 ENDCOMMON 3 0 C243100500019 DATA 3 7 C243100500020 ELEMENT MASS DATA C243100500021 NO-DIM NO-DIM MICRO-B C243100500022 38.0 91.0 0.180 C243100500023 38.0 92.0 0.13 C243100500024 39.0 93.0 0.345 C243100500025 40.0 97.0 0.470 C243100500026 46.0 109.0 0.182 C243100500027 46.0 112.0 0.109 C243100500028 47.0 113.0 0.086 C243100500029 ENDDATA 9 0 C243100500030 ENDSUBENT 29 0 C243100599999 SUBENT C2431006 20191210 C188C243100600001 BIB 4 11 C243100600002 REACTION (78-PT-195(A,F)ELEM/MASS,,SIG) C243100600003 SAMPLE (78-PT-190,ENR=0.0005) C243100600004 (78-PT-192,ENR=0.0006) C243100600005 (78-PT-194,ENR=0.2787) C243100600006 (78-PT-195,ENR=0.5986) Targets of enriched isotopes C243100600007 were prepared for bombardment in the form of thin foilsC243100600008 (~6mg/cm2). C243100600009 (78-PT-196,ENR=0.1175) C243100600010 (78-PT-198,ENR=0.0046) C243100600011 DECAY-DATA (39-Y-93-G,10.HR) C243100600012 STATUS (TABLE) Table 2, page 1467. C243100600013 ENDBIB 11 0 C243100600014 COMMON 1 3 C243100600015 EN C243100600016 MEV C243100600017 34.0 C243100600018 ENDCOMMON 3 0 C243100600019 DATA 3 7 C243100600020 ELEMENT MASS DATA C243100600021 NO-DIM NO-DIM MICRO-B C243100600022 38.0 91.0 0.062 C243100600023 38.0 92.0 0.0179 C243100600024 39.0 93.0 0.094 C243100600025 40.0 97.0 0.092 C243100600026 46.0 109.0 0.0145 C243100600027 46.0 112.0 0.0060 C243100600028 47.0 113.0 0.0092 C243100600029 ENDDATA 9 0 C243100600030 ENDSUBENT 29 0 C243100699999 SUBENT C2431007 20191210 C188C243100700001 BIB 4 11 C243100700002 REACTION (78-PT-196(A,F)ELEM/MASS,,SIG) C243100700003 SAMPLE (78-PT-190,ENR=0.0005) C243100700004 (78-PT-192,ENR=0.0005) C243100700005 (78-PT-194,ENR=0.0657) C243100700006 (78-PT-195,ENR=0.2618) C243100700007 (78-PT-196,ENR=0.6555) Targets of enriched isotopes C243100700008 were prepared for bombardment in the form of thin foilsC243100700009 (~6mg/cm2). C243100700010 (78-PT-198,ENR=0.0170) C243100700011 DECAY-DATA (39-Y-93-G,10.HR) C243100700012 STATUS (TABLE) Table 2, page 1467. C243100700013 ENDBIB 11 0 C243100700014 COMMON 1 3 C243100700015 EN C243100700016 MEV C243100700017 34.0 C243100700018 ENDCOMMON 3 0 C243100700019 DATA 3 7 C243100700020 ELEMENT MASS DATA C243100700021 NO-DIM NO-DIM MICRO-B C243100700022 38.0 91.0 0.137 C243100700023 38.0 92.0 0.014 C243100700024 39.0 93.0 0.24 C243100700025 40.0 97.0 0.428 C243100700026 46.0 109.0 0.262 C243100700027 46.0 112.0 0.0923 C243100700028 47.0 113.0 0.112 C243100700029 ENDDATA 9 0 C243100700030 ENDSUBENT 29 0 C243100799999 SUBENT C2431008 20191210 C188C243100800001 BIB 3 5 C243100800002 REACTION (78-PT-194(A,F),,SIG,,,DERIV) C243100800003 ANALYSIS Sum of production cross sections C243100800004 STATUS (DEP,C2431002) C243100800005 (DEP,C2431005) C243100800006 (TABLE) Table 3, page 1468. C243100800007 ENDBIB 5 0 C243100800008 NOCOMMON 0 0 C243100800009 DATA 2 2 C243100800010 EN DATA C243100800011 MEV MICRO-B C243100800012 34.0 9.09 C243100800013 41.0 22.13 C243100800014 ENDDATA 4 0 C243100800015 ENDSUBENT 14 0 C243100899999 SUBENT C2431009 20191210 C188C243100900001 BIB 3 5 C243100900002 REACTION (78-PT-195(A,F),,SIG,,,DERIV) C243100900003 ANALYSIS Sum of production cross sections C243100900004 STATUS (DEP,C2431003) C243100900005 (DEP,C2431006) C243100900006 (TABLE) Table 3, page 1468. C243100900007 ENDBIB 5 0 C243100900008 NOCOMMON 0 0 C243100900009 DATA 2 2 C243100900010 EN DATA C243100900011 MEV MICRO-B C243100900012 34.0 2.16 C243100900013 41.0 79.62 C243100900014 ENDDATA 4 0 C243100900015 ENDSUBENT 14 0 C243100999999 SUBENT C2431010 20191210 C188C243101000001 BIB 3 5 C243101000002 REACTION (78-PT-196(A,F),,SIG,,,DERIV) C243101000003 ANALYSIS Sum of production cross sections C243101000004 STATUS (DEP,C2431004) C243101000005 (DEP,C2431007) C243101000006 (TABLE) Table 3, page 1468. C243101000007 ENDBIB 5 0 C243101000008 NOCOMMON 0 0 C243101000009 DATA 2 2 C243101000010 EN DATA C243101000011 MEV MICRO-B C243101000012 34.0 8.20 C243101000013 41.0 24.69 C243101000014 ENDDATA 4 0 C243101000015 ENDSUBENT 14 0 C243101099999 ENDENTRY 10 0 C243199999999