/*===================================================================*/ /* NRDF D1662 Data No.15 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,15; 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,15; /* 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'99'; /* '99' Independent mass yields of secondary fragments */ THK-TGT=[1MG/CM**2; BAC=AL; THK-BAC=5.4MG/CM**2; ACC=CYC; INST-ACC=2JPNINS; INC-ENGY-LAB=86MEV; BEAM-INTNSTY=30[120PNA; /* Experimental Method: - Gamma ray spectrometry - Chemical separation (for Sb, I and Cs) - Energy degradation by foils (107 MeV 16O beams are degraded to 86 MeV by alumium energy degrader.) /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,15; INC-ENGY-LAB=86MEV; EMT=X'100'; /* '100' Fission fragments */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; Z A XSECTN DELTA-XSECTN'101' (NODIM) (NODIM) (MB) (MB) 38 91 2.15 +-0.04 40 97 2.84 +-0.07 41 96 0.441 +-0.019 45 105 1.99 +-0.19 46 112 5.18 +-0.19 48 115 2.45 +-0.05 51 122 1.7 +-0.03 51 124 1.83 +-0.05 51 126 0.323 +-0.022 53 124 0.696 +-0.752 53 126 0.657 +-0.037 53 130 0.718 +-0.056 53 131 0.617 +-0.036 55 134 1.09 +-0.14 55 136 0.273 +-0.025 \END; /*===================================================================*/ |