ENTRY C2524 20200419 C195C252400000001 SUBENT C2524001 20200419 C195C252400100001 BIB 9 20 C252400100002 TITLE Energetics of Charged Particle-Induced Fission C252400100003 Reactions C252400100004 AUTHOR (H.C.Britt,H.E.Wegner,J.C.Gursky) C252400100005 REFERENCE (J,PR,129,2239,1963) C252400100006 #doi:10.1103/PhysRev.129.2239 C252400100007 REL-REF (O,C2522001,H.C.Britt+,J,PR,133,B603,1964) The C252400100008 subsequent study. C252400100009 (O,14653001,H.C.Britt+,J,PR,129,2239,1963) 252Cf data. C252400100010 INSTITUTE (1USALAS) C252400100011 FACILITY (CYCLO,1USALAS) The Los Alamos variable energy C252400100012 cyclotron. C252400100013 DETECTOR (SIBAR) Two 300 Omega-cm gold-surface barrier C252400100014 semiconductor detectors. C252400100015 METHOD (COINC,PHWT) After traversing the detector-target C252400100016 chamber, the beam was collected in a Faraday cup, and C252400100017 the integrated beam was monitored with a current C252400100018 integrator. Baffles were placed around the detectors C252400100019 so that only particles from the target could be C252400100020 detected. C252400100021 HISTORY (20200419C) BP C252400100022 ENDBIB 20 0 C252400100023 COMMON 1 3 C252400100024 EN-ERR C252400100025 MEV C252400100026 0.2 C252400100027 ENDCOMMON 3 0 C252400100028 ENDSUBENT 27 0 C252400199999 SUBENT C2524002 20200419 C195C252400200001 BIB 3 7 C252400200002 REACTION (92-U-233(A,F)MASS,PRE,FY) C252400200003 SAMPLE (92-U-233,ENR=0.99) All of the targets except radium C252400200004 were prepared by evaporation on nickel backings of C252400200005 approximately 100-microg/cm2 areal density. 233U C252400200006 targets had areal densities of 20-30 microg/cm2, and C252400200007 it was 99% monoisotopic. C252400200008 STATUS (CURVE) Fig. 3, page 2243. C252400200009 ENDBIB 7 0 C252400200010 COMMON 1 3 C252400200011 EN C252400200012 MEV C252400200013 25.5 C252400200014 ENDCOMMON 3 0 C252400200015 DATA 2 47 C252400200016 MASS DATA C252400200017 NO-DIM PC/FIS C252400200018 72.032 0.027 C252400200019 73.269 0.054 C252400200020 74.152 0.072 C252400200021 75.212 0.081 C252400200022 75.919 0.089 C252400200023 77.155 0.107 C252400200024 78.127 0.143 C252400200025 79.187 0.250 C252400200026 80.159 0.304 C252400200027 80.954 0.358 C252400200028 81.926 0.447 C252400200029 83.074 0.617 C252400200030 84.134 0.644 C252400200031 85.106 0.805 C252400200032 85.989 0.984 C252400200033 87.049 1.199 C252400200034 88.110 1.395 C252400200035 88.993 1.753 C252400200036 90.053 1.852 C252400200037 91.113 2.165 C252400200038 91.996 2.621 C252400200039 93.057 2.818 C252400200040 94.028 3.041 C252400200041 95.000 3.068 C252400200042 96.148 3.533 C252400200043 96.767 3.703 C252400200044 97.827 3.703 C252400200045 98.975 3.766 C252400200046 99.947 4.114 C252400200047 101.095 4.141 C252400200048 102.155 4.293 C252400200049 102.950 4.463 C252400200050 104.099 4.249 C252400200051 104.894 4.070 C252400200052 105.866 3.989 C252400200053 106.749 3.524 C252400200054 107.897 3.488 C252400200055 109.046 3.283 C252400200056 110.018 2.853 C252400200057 110.989 2.612 C252400200058 111.873 2.451 C252400200059 112.844 2.343 C252400200060 113.905 2.218 C252400200061 115.053 2.147 C252400200062 116.025 2.102 C252400200063 117.085 1.950 C252400200064 117.968 1.923 C252400200065 ENDDATA 49 0 C252400200066 ENDSUBENT 65 0 C252400299999 SUBENT C2524003 20200419 C195C252400300001 BIB 3 9 C252400300002 REACTION (83-BI-209(HE3,F)MASS,PRE,FY,,REL) C252400300003 SAMPLE All of the targets except radium were prepared by C252400300004 evaporation on nickel backings of approximately C252400300005 100-microg/cm2 areal density. The 209Bi targets had C252400300006 areal density of 100-200 microg/cm2, which were C252400300007 determined to an accuracy of 20% by measuring the C252400300008 elastic scattering for 25.5-MeV 3He ions at 90 degree C252400300009 and comparing with other measurements. C252400300010 STATUS (CURVE) Fig. 4, page 2244. C252400300011 ENDBIB 9 0 C252400300012 COMMON 1 3 C252400300013 EN C252400300014 MEV C252400300015 25.5 C252400300016 ENDCOMMON 3 0 C252400300017 DATA 2 66 C252400300018 MASS DATA C252400300019 NO-DIM ARB-UNITS C252400300020 70.852 1.210E+01 C252400300021 71.687 2.538E+01 C252400300022 73.124 1.899E+01 C252400300023 73.826 2.920E+01 C252400300024 74.965 3.394E+01 C252400300025 75.805 6.128E+01 C252400300026 76.804 6.191E+01 C252400300027 78.795 8.531E+01 C252400300028 79.930 1.129E+02 C252400300029 81.769 2.060E+02 C252400300030 82.903 2.809E+02 C252400300031 83.896 3.537E+02 C252400300032 84.889 4.590E+02 C252400300033 85.884 5.497E+02 C252400300034 87.020 6.852E+02 C252400300035 87.867 9.632E+02 C252400300036 89.004 1.189E+03 C252400300037 90.705 1.866E+03 C252400300038 91.700 2.212E+03 C252400300039 92.693 2.785E+03 C252400300040 93.689 3.303E+03 C252400300041 94.828 3.725E+03 C252400300042 95.682 4.201E+03 C252400300043 96.678 4.785E+03 C252400300044 97.675 5.290E+03 C252400300045 98.531 5.507E+03 C252400300046 99.816 5.619E+03 C252400300047 100.672 5.908E+03 C252400300048 101.670 6.338E+03 C252400300049 102.669 6.403E+03 C252400300050 103.669 6.404E+03 C252400300051 104.383 6.534E+03 C252400300052 105.383 6.535E+03 C252400300053 106.669 6.536E+03 C252400300054 107.668 6.603E+03 C252400300055 108.669 6.473E+03 C252400300056 109.527 6.282E+03 C252400300057 110.671 6.037E+03 C252400300058 111.815 5.801E+03 C252400300059 112.531 5.518E+03 C252400300060 113.535 4.845E+03 C252400300061 114.679 4.656E+03 C252400300062 115.681 4.255E+03 C252400300063 116.685 3.737E+03 C252400300064 117.833 3.152E+03 C252400300065 118.694 2.713E+03 C252400300066 119.700 2.221E+03 C252400300067 120.705 1.855E+03 C252400300068 121.710 1.565E+03 C252400300069 122.860 1.231E+03 C252400300070 123.869 9.209E+02 C252400300071 124.874 7.615E+02 C252400300072 125.739 5.871E+02 C252400300073 126.745 4.711E+02 C252400300074 127.897 3.454E+02 C252400300075 128.759 2.914E+02 C252400300076 129.766 2.315E+02 C252400300077 130.919 1.631E+02 C252400300078 131.779 1.491E+02 C252400300079 132.643 1.184E+02 C252400300080 133.655 7.857E+01 C252400300081 134.942 7.475E+01 C252400300082 135.810 5.059E+01 C252400300083 136.672 4.354E+01 C252400300084 137.818 3.824E+01 C252400300085 138.827 2.804E+01 C252400300086 ENDDATA 68 0 C252400300087 ENDSUBENT 86 0 C252400399999 SUBENT C2524004 20200419 C195C252400400001 BIB 6 22 C252400400002 REACTION (79-AU-197(HE3,F),(SEC),AKE,LF+HF) The average final C252400400003 total kinetic-energy release. C252400400004 SAMPLE All of the targets except radium were prepared by C252400400005 evaporation on nickel backings of approximately C252400400006 100-microg/cm2 areal density. The 197Au target had C252400400007 areal densities of 100-200 microg/cm2, which were C252400400008 determined to an accuracy of 20% by measuring the C252400400009 elastic scattering for 25.5-MeV 3He ions at 90 C252400400010 degrees and comparing with other measurements. The C252400400011 target was monoisotopic. C252400400012 ANALYSIS For a given set of data, the events were sorted to C252400400013 give the energy and mass spectra in each of the two C252400400014 channels, the total kinetic energy release spectrum, C252400400015 and a probability matrix for the total kinetic energy C252400400016 release versus the mass ratio of the two fragments. C252400400017 The average value of the final total kinetic energy C252400400018 release and a value for the variance were computed C252400400019 for each mass ratio group. C252400400020 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. C252400400021 MISC-COL (MISC) The variance of the average total kinetic-energyC252400400022 distribution. C252400400023 STATUS (TABLE) Table I, page 2243. C252400400024 ENDBIB 22 0 C252400400025 NOCOMMON 0 0 C252400400026 DATA 5 1 C252400400027 EN DATA DATA-ERR MISC MISC-ERR C252400400028 MEV MEV MEV MEV-SQ MEV-SQ C252400400029 25.5 138.6 2.0 55.0 3.0 C252400400030 ENDDATA 3 0 C252400400031 ENDSUBENT 30 0 C252400499999 SUBENT C2524005 20200419 C195C252400500001 BIB 6 23 C252400500002 REACTION (81-TL-0(HE3,F),(SEC),AKE,LF+HF) The average final C252400500003 total kinetic-energy release. C252400500004 SAMPLE All of the targets except radium were prepared by C252400500005 evaporation on nickel backings of approximately C252400500006 100-microg/cm2 areal density. The Tl target had areal C252400500007 densities of 100-200 microg/cm2, which were determined C252400500008 an accuracy of 20% by measuring the elastic C252400500009 scattering for 25.5-MeV 3He ions at 90 degrees and C252400500010 comparing with other measurements. The Tl target C252400500011 contained the natural isotopic mixture of 203Tl and C252400500012 205Tl. C252400500013 ANALYSIS For a given set of data, the events were sorted to C252400500014 give the energy and mass spectra in each of the two C252400500015 channels, the total kinetic energy release spectrum, C252400500016 and a probability matrix for the total kinetic energy C252400500017 release versus the mass ratio of the two fragments. C252400500018 The average value of the final total kinetic energy C252400500019 release and a value for the variance were computed C252400500020 for each mass ratio group. C252400500021 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. C252400500022 MISC-COL (MISC) The variance of the average total kinetic-energyC252400500023 distribution. C252400500024 STATUS (TABLE) Table I, page 2243. C252400500025 ENDBIB 23 0 C252400500026 NOCOMMON 0 0 C252400500027 DATA 5 1 C252400500028 EN DATA DATA-ERR MISC MISC-ERR C252400500029 MEV MEV MEV MEV-SQ MEV-SQ C252400500030 25.5 139.0 2.0 50.0 3.0 C252400500031 ENDDATA 3 0 C252400500032 ENDSUBENT 31 0 C252400599999 SUBENT C2524006 20200419 C195C252400600001 BIB 6 25 C252400600002 REACTION (82-PB-206(HE3,F),(SEC),AKE,LF+HF) The average final C252400600003 total kinetic-energy release. C252400600004 SAMPLE (82-PB-206,ENR=0.88) C252400600005 (82-PB-207,NAT=0.09) C252400600006 (82-PB-208,ENR=0.03) All of the targets except radium C252400600007 were prepared by evaporation on nickel backings of C252400600008 approximately 100-microg/cm2 areal density. The 206Pb C252400600009 target had areal densities of 100-200 microg/cm2, C252400600010 which were determined to an accuracy of 20% by C252400600011 measuring the elastic scattering for 25.5-MeV 3He C252400600012 ions at 90 degrees and comparing with other C252400600013 measurements. The 206Pb target had an isotopic C252400600014 composition of 88% 206Pb, 9% 207Pb, and 3% 208Pb. C252400600015 ANALYSIS For a given set of data, the events were sorted to C252400600016 give the energy and mass spectra in each of the two C252400600017 channels, the total kinetic energy release spectrum, C252400600018 and a probability matrix for the total kinetic energy C252400600019 release versus the mass ratio of the two fragments. C252400600020 The average value of the final total kinetic energy C252400600021 release and a value for the variance were computed C252400600022 for each mass ratio group. C252400600023 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. C252400600024 MISC-COL (MISC) The variance of the average total kinetic-energyC252400600025 distribution. C252400600026 STATUS (TABLE) Table I, page 2243. C252400600027 ENDBIB 25 0 C252400600028 NOCOMMON 0 0 C252400600029 DATA 5 1 C252400600030 EN DATA DATA-ERR MISC MISC-ERR C252400600031 MEV MEV MEV MEV-SQ MEV-SQ C252400600032 25.5 143.6 2.0 50.0 3.0 C252400600033 ENDDATA 3 0 C252400600034 ENDSUBENT 33 0 C252400699999 SUBENT C2524007 20200419 C195C252400700001 BIB 6 22 C252400700002 REACTION (83-BI-209(HE3,F),(SEC),AKE,LF+HF) The average final C252400700003 total kinetic-energy release. C252400700004 SAMPLE All of the targets except radium were prepared by C252400700005 evaporation on nickel backings of approximately C252400700006 100-microg/cm2 areal density. The 209Bi targets had C252400700007 areal density of 100-200 microg/cm2, which were C252400700008 determined to an accuracy of 20% by measuring the C252400700009 elastic scattering for 25.5-MeV 3He ions at 90 degree C252400700010 and comparing with other measurements. C252400700011 ANALYSIS For a given set of data, the events were sorted to C252400700012 give the energy and mass spectra in each of the two C252400700013 channels, the total kinetic energy release spectrum, C252400700014 and a probability matrix for the total kinetic energy C252400700015 release versus the mass ratio of the two fragments. C252400700016 The average value of the final total kinetic energy C252400700017 release and a value for the variance were computed C252400700018 for each mass ratio group. C252400700019 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. C252400700020 MISC-COL (MISC) The variance of the average total kinetic-energyC252400700021 distribution. C252400700022 STATUS (DEP,C2524003) C252400700023 (TABLE) Table I, page 2243. C252400700024 ENDBIB 22 0 C252400700025 NOCOMMON 0 0 C252400700026 DATA 5 2 C252400700027 EN DATA DATA-ERR MISC MISC-ERR C252400700028 MEV MEV MEV MEV-SQ MEV-SQ C252400700029 25.5 145.4 2.0 57.0 3.0 C252400700030 22.1 144.8 2.0 48.0 3.0 C252400700031 ENDDATA 4 0 C252400700032 ENDSUBENT 31 0 C252400799999 SUBENT C2524008 20200419 C195C252400800001 BIB 6 17 C252400800002 REACTION (88-RA-226(D,F),(SEC),AKE,LF+HF) The average final C252400800003 total kinetic-energy release. C252400800004 SAMPLE 226Ra target was made by electro spraying and C252400800005 contained 32 microg of 226Ra on an area of C252400800006 approximately 1 cm2. C252400800007 ANALYSIS For a given set of data, the events were sorted to C252400800008 give the energy and mass spectra in each of the two C252400800009 channels, the total kinetic energy release spectrum, C252400800010 and a probability matrix for the total kinetic energy C252400800011 release versus the mass ratio of the two fragments. C252400800012 The average value of the final total kinetic energy C252400800013 release and a value for the variance were computed C252400800014 for each mass ratio group. C252400800015 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. C252400800016 MISC-COL (MISC) The variance of the average total kinetic-energyC252400800017 distribution. C252400800018 STATUS (TABLE) Table I, page 2243. C252400800019 ENDBIB 17 0 C252400800020 NOCOMMON 0 0 C252400800021 DATA 5 3 C252400800022 EN DATA DATA-ERR MISC MISC-ERR C252400800023 MEV MEV MEV MEV-SQ MEV-SQ C252400800024 14.0 150.9 2.0 88.0 5.0 C252400800025 11.7 151.0 2.0 90.0 5.0 C252400800026 9.8 152.0 2.0 89.0 5.0 C252400800027 ENDDATA 5 0 C252400800028 ENDSUBENT 27 0 C252400899999 SUBENT C2524009 20200419 C195C252400900001 BIB 6 17 C252400900002 REACTION (88-RA-226(A,F),(SEC),AKE,LF+HF) The average final C252400900003 total kinetic-energy release. C252400900004 SAMPLE 226Ra target was made by electro spraying and C252400900005 contained 32 microg of 226Ra on an area of C252400900006 approximately 1 cm2. C252400900007 ANALYSIS For a given set of data, the events were sorted to C252400900008 give the energy and mass spectra in each of the two C252400900009 channels, the total kinetic energy release spectrum, C252400900010 and a probability matrix for the total kinetic energy C252400900011 release versus the mass ratio of the two fragments. C252400900012 The average value of the final total kinetic energy C252400900013 release and a value for the variance were computed C252400900014 for each mass ratio group. C252400900015 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. C252400900016 MISC-COL (MISC) The variance of the average total kinetic-energyC252400900017 distribution. C252400900018 STATUS (TABLE) Table I, page 2243. C252400900019 ENDBIB 17 0 C252400900020 NOCOMMON 0 0 C252400900021 DATA 5 2 C252400900022 EN DATA DATA-ERR MISC MISC-ERR C252400900023 MEV MEV MEV MEV-SQ MEV-SQ C252400900024 27.1 156.8 2.0 88.0 5.0 C252400900025 22.1 156.8 2.0 83.0 5.0 C252400900026 ENDDATA 4 0 C252400900027 ENDSUBENT 26 0 C252400999999 SUBENT C2524010 20200419 C195C252401000001 BIB 6 17 C252401000002 REACTION (88-RA-226(HE3,F),(SEC),AKE,LF+HF) The average final C252401000003 total kinetic-energy release. C252401000004 SAMPLE 226Ra target was made by electro spraying and C252401000005 contained 32 microg of 226Ra on an area of C252401000006 approximately 1 cm2. C252401000007 ANALYSIS For a given set of data, the events were sorted to C252401000008 give the energy and mass spectra in each of the two C252401000009 channels, the total kinetic energy release spectrum, C252401000010 and a probability matrix for the total kinetic energy C252401000011 release versus the mass ratio of the two fragments. C252401000012 The average value of the final total kinetic energy C252401000013 release and a value for the variance were computed C252401000014 for each mass ratio group. C252401000015 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. C252401000016 MISC-COL (MISC) The variance of the average total kinetic-energyC252401000017 distribution. C252401000018 STATUS (TABLE) Table I, page 2243. C252401000019 ENDBIB 17 0 C252401000020 NOCOMMON 0 0 C252401000021 DATA 5 2 C252401000022 EN DATA DATA-ERR MISC MISC-ERR C252401000023 MEV MEV MEV MEV-SQ MEV-SQ C252401000024 23.4 154.4 2.0 94.0 5.0 C252401000025 20.9 153.4 2.0 93.0 5.0 C252401000026 ENDDATA 4 0 C252401000027 ENDSUBENT 26 0 C252401099999 SUBENT C2524011 20200419 C195C252401100001 BIB 6 23 C252401100002 REACTION (90-TH-230(P,F),(SEC),AKE,LF+HF) The average final C252401100003 total kinetic-energy release. C252401100004 SAMPLE (90-TH-230,ENR=0.902) C252401100005 (90-TH-232,ENR=0.098) All of the targets except C252401100006 radium were prepared by evaporation on nickel C252401100007 backings of approximately 100-microg/cm2 areal C252401100008 density. The 230Th target had areal density of 20-30 C252401100009 microg/cm2, which was determined from the alpha C252401100010 activity of the target and the area of the deposit. C252401100011 The 230Th target had an isotopic composition of 90.2% C252401100012 230Th and 9.8% 232Th. C252401100013 ANALYSIS For a given set of data, the events were sorted to C252401100014 give the energy and mass spectra in each of the two C252401100015 channels, the total kinetic energy release spectrum, C252401100016 and a probability matrix for the total kinetic energy C252401100017 release versus the mass ratio of the two fragments. C252401100018 The average value of the final total kinetic energy C252401100019 release and a value for the variance were computed C252401100020 for each mass ratio group. C252401100021 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. C252401100022 MISC-COL (MISC) The variance of the average total kinetic-energyC252401100023 distribution. C252401100024 STATUS (TABLE) Table I, page 2243. C252401100025 ENDBIB 23 0 C252401100026 NOCOMMON 0 0 C252401100027 DATA 5 2 C252401100028 EN DATA DATA-ERR MISC MISC-ERR C252401100029 MEV MEV MEV MEV-SQ MEV-SQ C252401100030 8.0 159.6 2.0 92.0 5.0 C252401100031 6.8 159.4 2.0 90.0 5.0 C252401100032 ENDDATA 4 0 C252401100033 ENDSUBENT 32 0 C252401199999 SUBENT C2524012 20200419 C195C252401200001 BIB 6 20 C252401200002 REACTION (92-U-233(A,F),(SEC),AKE,LF+HF) The average final C252401200003 total kinetic-energy release. C252401200004 SAMPLE (92-U-233,ENR=0.99) All of the targets except radium C252401200005 were prepared by evaporation on nickel backings of C252401200006 approximately 100-microg/cm2 areal density. 233U C252401200007 targets had areal densities of 20-30 microg/cm2, and C252401200008 it was 99% monoisotopic. C252401200009 ANALYSIS For a given set of data, the events were sorted to C252401200010 give the energy and mass spectra in each of the two C252401200011 channels, the total kinetic energy release spectrum, C252401200012 and a probability matrix for the total kinetic energy C252401200013 release versus the mass ratio of the two fragments. C252401200014 The average value of the final total kinetic energy C252401200015 release and a value for the variance were computed C252401200016 for each mass ratio group. C252401200017 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. C252401200018 MISC-COL (MISC) The variance of the average total kinetic-energyC252401200019 distribution. C252401200020 STATUS (DEP,C2524002) C252401200021 (TABLE) Table I, page 2243. C252401200022 ENDBIB 20 0 C252401200023 NOCOMMON 0 0 C252401200024 DATA 5 1 C252401200025 EN DATA DATA-ERR MISC MISC-ERR C252401200026 MEV MEV MEV MEV-SQ MEV-SQ C252401200027 25.5 165.8 2.0 117.0 6.0 C252401200028 ENDDATA 3 0 C252401200029 ENDSUBENT 28 0 C252401299999 ENDENTRY 12 0 C252499999999