ENTRY C2487 20200228 C191C248700000001 SUBENT C2487001 20200228 C191C248700100001 BIB 8 16 C248700100002 TITLE The helium ion-induced fission of 203Tl and 205Tl at C248700100003 31,42 and 65 MeV C248700100004 AUTHOR (R.D.Kieburtz,E.F.Neuzil) C248700100005 REFERENCE (J,JIN,36,3643,1974) C248700100006 #doi:10.1016/0022-1902(74)80142-9 C248700100007 REL-REF (M,C2473001,E.F.Neuzil,J,JIN,27,3,1965) Chemical C248700100008 techniques. C248700100009 INSTITUTE (1USAWWS) C248700100010 METHOD (CHSEP) A radiochemical study. In each case the C248700100011 bombarded targets were flown and/or driven to our C248700100012 laboratories here in Bellingham for analysis where C248700100013 the fission fragments were separated and purified C248700100014 using standard radio chemical techniques. C248700100015 ERR-ANALYS (ERR-SYS) Although error bars are not indicated,the C248700100016 systematic errors are about +-20 percent. C248700100017 HISTORY (20200228C) BP C248700100018 ENDBIB 16 0 C248700100019 COMMON 1 3 C248700100020 ERR-SYS C248700100021 PER-CENT C248700100022 20.0 C248700100023 ENDCOMMON 3 0 C248700100024 ENDSUBENT 23 0 C248700199999 SUBENT C2487002 20200228 C191C248700200001 BIB 4 10 C248700200002 REACTION (81-TL-203(A,F)MASS,CHN,SIG) C248700200003 FACILITY (CYCLO,1USAWAU) The 60 in. cyclotron at the C248700200004 University of Washington. C248700200005 SAMPLE (81-TL-203,ENR=0.9496) C248700200006 (81-TL-205,ENR=0.0504) For the 31 and 42 MeV work, C248700200007 target weights were about 12 mg of Tl203. The Tl2O3 C248700200008 to be bombarded was wrapped and pressed into a small C248700200009 piece of hyperpure aluminum foil and then mounted for C248700200010 bombardment. C248700200011 STATUS (CURVE) Fig. 1, page 3644. C248700200012 ENDBIB 10 0 C248700200013 COMMON 1 3 C248700200014 EN C248700200015 MEV C248700200016 31.0 C248700200017 ENDCOMMON 3 0 C248700200018 DATA 3 9 C248700200019 MASS DATA DATA-MIN C248700200020 NO-DIM MICRO-B MICRO-B C248700200021 90.894 3.728E-02 C248700200022 91.812 5.179E-02 C248700200023 93.073 7.253E-02 C248700200024 97.202 3.340E-01 C248700200025 99.037 7.844E-02 C248700200026 99.037 7.844E-02 C248700200027 109.128 5.429E-01 C248700200028 112.110 1.326E-01 C248700200029 112.913 4.789E-02 C248700200030 ENDDATA 11 0 C248700200031 ENDSUBENT 30 0 C248700299999 SUBENT C2487003 20200228 C191C248700300001 BIB 4 10 C248700300002 REACTION (81-TL-205(A,F)MASS,CHN,SIG) C248700300003 FACILITY (CYCLO,1USAWAU) The 60 in. cyclotron at the C248700300004 University of Washington. C248700300005 SAMPLE (81-TL-205,ENR=0.9879) C248700300006 (81-TL-203,ENR=0.0121) For the 31 and 42 MeV work, C248700300007 target weights were about 12 mg of Tl203. The Tl2O3 C248700300008 to be bombarded was wrapped and pressed into a small C248700300009 piece of hyperpure aluminum foil and then mounted for C248700300010 bombardment. C248700300011 STATUS (CURVE) Fig. 1, page 3644. C248700300012 ENDBIB 10 0 C248700300013 COMMON 1 3 C248700300014 EN C248700300015 MEV C248700300016 31.0 C248700300017 ENDCOMMON 3 0 C248700300018 DATA 2 8 C248700300019 MASS DATA C248700300020 NO-DIM MICRO-B C248700300021 90.894 1.813E-02 C248700300022 91.927 2.600E-02 C248700300023 93.073 1.207E-01 C248700300024 97.087 1.744E-01 C248700300025 99.266 3.393E-01 C248700300026 108.899 5.179E-01 C248700300027 112.110 3.289E-01 C248700300028 112.913 5.179E-02 C248700300029 ENDDATA 10 0 C248700300030 ENDSUBENT 29 0 C248700399999 SUBENT C2487004 20200228 C191C248700400001 BIB 4 10 C248700400002 REACTION (81-TL-203(A,F)MASS,CHN,SIG) C248700400003 FACILITY (CYCLO,1USAWAU) The 60 in. cyclotron at the C248700400004 University of Washington. C248700400005 SAMPLE (81-TL-203,ENR=0.9496) C248700400006 (81-TL-205,ENR=0.0504) For the 31 and 42 MeV work, C248700400007 target weights were about 12 mg of Tl203. The Tl2O3 C248700400008 to be bombarded was wrapped and pressed into a small C248700400009 piece of hyperpure aluminum foil and then mounted for C248700400010 bombardment. C248700400011 STATUS (CURVE) Fig. 2, page 3644. C248700400012 ENDBIB 10 0 C248700400013 COMMON 1 3 C248700400014 EN C248700400015 MEV C248700400016 42.0 C248700400017 ENDCOMMON 3 0 C248700400018 DATA 2 9 C248700400019 MASS DATA C248700400020 NO-DIM MICRO-B C248700400021 91.162 8.917E+00 C248700400022 92.230 1.140E+01 C248700400023 93.198 1.235E+01 C248700400024 97.260 1.654E+01 C248700400025 99.198 2.173E+01 C248700400026 109.113 8.104E+00 C248700400027 111.246 1.168E+01 C248700400028 112.200 7.579E+00 C248700400029 113.343 4.420E+00 C248700400030 ENDDATA 11 0 C248700400031 ENDSUBENT 30 0 C248700499999 SUBENT C2487005 20200228 C191C248700500001 BIB 4 10 C248700500002 REACTION (81-TL-205(A,F)MASS,CHN,SIG) C248700500003 FACILITY (CYCLO,1USAWAU) The 60 in. cyclotron at the C248700500004 University of Washington. C248700500005 SAMPLE (81-TL-205,ENR=0.9879) C248700500006 (81-TL-203,ENR=0.0121) For the 31 and 42 MeV work, C248700500007 target weights were about 12 mg of Tl203. The Tl2O3 C248700500008 to be bombarded was wrapped and pressed into a small C248700500009 piece of hyperpure aluminum foil and then mounted for C248700500010 bombardment. C248700500011 STATUS (CURVE) Fig. 2, page 3644. C248700500012 ENDBIB 10 0 C248700500013 COMMON 1 3 C248700500014 EN C248700500015 MEV C248700500016 42.0 C248700500017 ENDCOMMON 3 0 C248700500018 DATA 3 8 C248700500019 MASS DATA DATA-MIN C248700500020 NO-DIM MICRO-B MICRO-B C248700500021 91.252 7.064E+00 C248700500022 92.303 4.801E+00 C248700500023 93.469 6.520E+00 C248700500024 97.222 4.285E+00 C248700500025 99.385 1.768E+01 C248700500026 109.506 1.051E+01 C248700500027 111.529 9.072E+00 C248700500028 113.553 8.263E+00 C248700500029 ENDDATA 10 0 C248700500030 ENDSUBENT 29 0 C248700599999 SUBENT C2487006 20200228 C191C248700600001 BIB 4 9 C248700600002 REACTION (81-TL-203(A,F)MASS,CHN,SIG) C248700600003 FACILITY (CYCLO,1USABRK) Berkeley 88 inch cyclotron. C248700600004 SAMPLE (81-TL-203,ENR=0.9496) C248700600005 (81-TL-205,ENR=0.0504) For the 65 MeV bombardments C248700600006 only about 5.0 mg of Tl203 was used. The Tl2O3 to be C248700600007 bombarded was wrapped and pressed into a small piece C248700600008 of hyperpure aluminum foil and then mounted for C248700600009 bombardment. C248700600010 STATUS (CURVE) Fig. 3, page 3644. C248700600011 ENDBIB 9 0 C248700600012 COMMON 1 3 C248700600013 EN C248700600014 MEV C248700600015 65.0 C248700600016 ENDCOMMON 3 0 C248700600017 DATA 2 9 C248700600018 MASS DATA C248700600019 NO-DIM MICRO-B C248700600020 91.026 3.791E+00 C248700600021 91.981 5.183E+00 C248700600022 93.109 2.495E+00 C248700600023 97.162 5.089E+00 C248700600024 99.097 2.596E+01 C248700600025 109.003 4.022E+00 C248700600026 111.007 7.824E+00 C248700600027 112.016 1.292E+00 C248700600028 112.944 1.001E+01 C248700600029 ENDDATA 11 0 C248700600030 ENDSUBENT 29 0 C248700699999 SUBENT C2487007 20200228 C191C248700700001 BIB 4 9 C248700700002 REACTION (81-TL-205(A,F)MASS,CHN,SIG) C248700700003 FACILITY (CYCLO,1USABRK) Berkeley 88 inch cyclotron. C248700700004 SAMPLE (81-TL-205,ENR=0.9879) C248700700005 (81-TL-203,ENR=0.0121) For the 65 MeV bombardments C248700700006 only about 5.0 mg of Tl203 was used. The Tl2O3 to be C248700700007 bombarded was wrapped and pressed into a small piece C248700700008 of hyperpure aluminum foil and then mounted for C248700700009 bombardment. C248700700010 STATUS (CURVE) Fig. 3, page 3644. C248700700011 ENDBIB 9 0 C248700700012 COMMON 1 3 C248700700013 EN C248700700014 MEV C248700700015 65.0 C248700700016 ENDCOMMON 3 0 C248700700017 DATA 2 9 C248700700018 MASS DATA C248700700019 NO-DIM MICRO-B C248700700020 91.126 9.448E-01 C248700700021 92.190 1.101E+00 C248700700022 93.122 2.072E+00 C248700700023 97.144 1.677E+00 C248700700024 99.079 2.175E+00 C248700700025 109.183 1.265E+00 C248700700026 111.107 1.937E+00 C248700700027 112.026 1.116E+00 C248700700028 113.166 1.778E+00 C248700700029 ENDDATA 11 0 C248700700030 ENDSUBENT 29 0 C248700799999 SUBENT C2487008 20200228 C191C248700800001 BIB 3 9 C248700800002 REACTION (81-TL-203(A,F),,SIG,,,DERIV) C248700800003 ANALYSIS The total fission cross sections were obtained in the C248700800004 usual manner by summing the individual fission C248700800005 fragment cross sections over the resolved mass C248700800006 distribution curves. C248700800007 STATUS (DEP,C2487002) C248700800008 (DEP,C2487004) C248700800009 (DEP,C2487006) C248700800010 (TABLE) Table 2, page 3645. C248700800011 ENDBIB 9 0 C248700800012 NOCOMMON 0 0 C248700800013 DATA 2 3 C248700800014 EN DATA C248700800015 MEV MICRO-B C248700800016 31.0 10.4 C248700800017 42.0 429.0 C248700800018 65.0 37540.0 C248700800019 ENDDATA 5 0 C248700800020 ENDSUBENT 19 0 C248700899999 SUBENT C2487009 20200228 C191C248700900001 BIB 3 9 C248700900002 REACTION (81-TL-205(A,F),,SIG,,,DERIV) C248700900003 ANALYSIS The total fission cross sections were obtained in the C248700900004 usual manner by summing the individual fission C248700900005 fragment cross sections over the resolved mass C248700900006 distribution curves. C248700900007 STATUS (DEP,C2487003) C248700900008 (DEP,C2487005) C248700900009 (DEP,C2487007) C248700900010 (TABLE) Table 2, page 3645. C248700900011 ENDBIB 9 0 C248700900012 NOCOMMON 0 0 C248700900013 DATA 2 3 C248700900014 EN DATA C248700900015 MEV MICRO-B C248700900016 31.0 6.5 C248700900017 42.0 334.0 C248700900018 65.0 4520.0 C248700900019 ENDDATA 5 0 C248700900020 ENDSUBENT 19 0 C248700999999 ENDENTRY 9 0 C248799999999