/*===================================================================*/ /* NRDF D1662 Data No.6 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,6; D#=D1662; TITLE=/Nuclear fission of neutron-deficient protactinium nuclides/; PURPOSE=/To study the degree of the contribution of asymmetric massdivision in the low energy fission of neutron-deficient lightactinides by observing yields of fission products in detail/; ATH=(I.NISHINAKA'1', Y.NAGAME'1', K.TSUKADA'1', H.IKEZOE'1', K.SUEKI'2', H.NAKAHARA'2', M.TANIKAWA'3', T.OHTSUKI'4'); INST-ATH=(2JPNJAE'1', 2JPNTMU'2', 2JPNTOK'3', 2JPNTOH'4'); /* '2' Faculty of Science */ /* '3' School of Science */ /* '4' Laboratory of Nuclear Science */ REF=PR/C; VLP=56(1997)891; RCTS=209BI(16O,FISSN), 209BI(18O,FISSN); PHQS=(DATA'5', DATA'6', A-DSTRN'7', A-DSTRN'8', A-DSTRN'9', A-DSTRN'10', A-DSTRN'11'); /* '5' velocity distributions of fission fragments */ /* '6' kinetic energy distribution */ /* '7' Secondary (post neutron emission) fragment mass distribution /* '8' Primary (pre neutron emission) fragment mass distribution */ /* '9' Cummulative mass yields of secondary fragments */ /* '10' Independent mass yields of secondary fragments */ /* '11' Independent element yields of secondary fragments */ /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,6; /* 2003-08-19 : Converted, Data converted to EXFOR E1662 */ RTY=FISSN; ENR=X%; CHM=ELM; PHYS-FORM=SLD; POL-TGT=0%; ALGN-TGT=0%; DET-PARTCL=X'12'; /* '12' Fission Fragments */ COINC=NO; ANT-COINC=NO; RCT=209BI(16O,FISSN); PHQ=A-DSTRN'48'; /* '48' Secondary (post neutron emission) fragment mass distribution */ THK-TGT=[0.04MG/CM**2; BAC=C; THK-BAC=0.01MG/CM**2; ACC=VDGT; INST-ACC=2JPNJAE; INC-ENGY-LAB=86MEV; BEAM-INTNSTY=[100PNA; DET-SYS=(MCPLT'49',SSD'50',PPAC'51'); /* '49' Used as ToF telescope at theta(lab)=60 deg. */ /* '50' To measure kinetic energies of fission fragments, 0.3 msr /* '51' Set at theta(lab)=99 deg. Solid angle was 80 msr. */ CALB-DET=/ Calibrations of the time for the ToF system and the energy for the SSD were performed by measuring the elastically scattered 16O and 18O ions from a 209Bi target, and also the particles recoiling out from thin targets, natural Ag, natural In, natural Sb by bombardment of the 350 MeV 127I beam. /; /* Experimental Method: - Time-of-flight (to obtain velocity distribution) /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,6; INC-ENGY-LAB=86MEV; EMT=X'52'; /* '52' Fission fragments */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; A-MIN A-MAX YLD DELTA-YLD'53' (NODIM) (NODIM) (%) (%) 60 61 0.01 +-4.700E-03 62 63 6.070E-03 +-3.665E-03 64 65 1.80E-02 +-6.380E-03 66 67 2.100E-02 +-6.790E-03 68 69 4.400E-02 +-1.000E-02 70 71 0.058 +-0.011 72 73 0.148 +-0.018 74 75 0.202 +-0.021 76 77 0.288 +-0.025 78 79 0.529 +-0.034 80 81 0.738 +-0.04 82 83 1.023 +-0.048 84 85 1.324 +-0.054 86 87 1.637 +-0.06 88 89 2.053 +-0.067 90 91 2.489 +-0.074 92 93 2.68 +-0.077 94 95 3.189 +-0.084 96 97 3.555 +-0.089 98 99 4.179 +-0.096 100 101 4.383 +-0.099 102 103 5.05 +-0.106 104 105 5.493 +-0.11 106 107 5.648 +-0.112 108 109 5.825 +-0.114 110 111 5.648 +-0.112 112 113 5.714 +-0.113 114 115 5.249 +-0.108 116 117 4.806 +-0.103 118 119 4.354 +-0.098 120 121 3.734 +-0.091 122 123 3.444 +-0.087 124 125 3.138 +-0.083 126 127 2.636 +-0.076 128 129 2.292 +-0.071 130 131 1.834 +-0.064 132 133 1.484 +-5.700E-02 134 135 1.298E+00 +-5.400E-02 136 137 1.045E+00 +-4.800E-02 138 139 7.660E-01 +-4.100E-02 140 141 6.490E-01 +-3.800E-02 142 143 3.940E-01 +-3.000E-02 144 145 3.030E-01 +-2.600E-02 146 147 0.228 +-0.022 148 149 1.460E-01 +-1.800E-02 150 151 9.700E-02 +-1.500E-02 152 153 5.700E-02 +-1.100E-02 154 155 3.100E-02 +-8.255E-03 156 157 2.700E-02 +-7.735E-03 158 159 2.300E-02 +-7.210E-03 \END; /*===================================================================*/ |