/*===================================================================*/ /* NRDF D1910 Data No.6 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,6; D#=D1910; TITLE=/ Angular-momentum effect in the fusion reaction of 141Pr with 40Ar projectiles /; PURPOSE=/ To attempt direct measurements of the cross sections for both particle evaporation and fission in the reaction of 141Pr with 40Ar ions by a radiochemical method to elucidate the relation of the critical angular momenta with the measured cross sections /; ATH=(H.KUSAWAKE'1', T.SAITO'1', A.YOKOYAMA'1', K.TAKESAKO'1', N.TAKAHASHI'1', H.BABA'1', Y.OHKUBO'2', A.SHINOHARA'3'); INST-ATH=(2JPNOSA'1', 2JPNIPC'2', 2JPNNAG'3'); /* '1' Department of Chemistry and Laboratory of Nuclear Studies, Faculty of Science */ /* '3' Department of Chemistry, Faculty of Science */ REF=RCA; VLP=69(1995)65; RCTS=141PR(40AR,X)X; PHQS=(XSECTN'4', XSECTN'5'); /* '4' Cummulative yield */ /* '5' Independent yield */ /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,6; /* 2005-09-14 : Compiled, Kc + On */ /* Related references - U.Reus et al., AND, 29(1983)1. Reference from which data were used (Energies and half-lives for assignments of gamma-ray peaks) /* Additional results shown but not compiled - Mass distribution (Distribution of cummulative yields of the products in each foil) CHM=ELM; PHYS-FORM=SLD'6'; /* '6' Metal foils */ THK-TGT=(3MG/CM**2,6MG/CM**2); BAC=AL'7'; /* '7' Target was sandwiched by Al catcher foils. In some runs, Al foils were replaced by graphite foils with nearly the same stopping power. */ THK-BAC=XMG/CM**2'8'; /* '8' Between 3-micrometer and 50 micro-meter */ POL-TGT=0%; ALGN-TGT=0%; ACC=CYC; INST-ACC=2JPNIPC'9'; /* '9' RIKEN ring cyclotron (RRC) facility */ POL-PRJ=0%; COINC=NO; ANT-COINC=NO; DET-SYS=error'10'; /* '10' Relative efficiencies of 10-15 % and resolution of around 2 keV at 1.33 MeV */ /* Experimental Method: - Activation (Irradiated typically 20 min for short-lived products and 2 hour for long-lived products) - Energy degradation by foils (Energy degration of 40Ar ions in target stack was calculated using the OSCAR code [K. Hata and H. Baba, INDC(NDS)-195-GZ, p131 (1988)].) - Gamma ray spectrometry (Assignments of gamma-ray peaks were made according to their energies and half-lives.) /* Analysis: - Decay curve analysis (Decay-growth analysis of observed photopeak intensities for cross section calculation) RCT=141PR(40AR,X)X; PHQ=XSECTN'21'; /* '21' Independent yield */ INC-ENGY-LAB=24.8MEV/A; CHRG-INC-ION=18+; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,6; INC-ENGY-LAB=24.8MEV/A; TOT-ERR=X%'22'; /* '22' Mainly due to statistical errors in counting gamma-ray emission and expected errors in the photoemission probability /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; Z A ISOMER XSECTN DELTA-XSECTN HALF-LIFE (NODIM) (NODIM) (NODIM) (MB) (MB) (SEC) 33 72 X 6.5 +-0.5 93600 33 74 X 4.1 +-0.1 1536192 33 76 X 1.8 +-0.3 94752 37 82 1 6.4 +-0.4 23292 39 84 1 2.1 +-0.2 2400 39 86 0 6.3 +-0.4 53064 39 86 1 8.2 +-0.4 2880 39 88 X 2.7 +-0.1 9210240 41 92 1 0.12 +-0.03 876960 42 93 1 5.2 +-0.2 24660 43 94 0 6.0 +-0.3 17568 43 95 1 9.7 +-1.1 5270400 43 96 0 4.8 +-0.2 369792 45 99 0 5.6 +-0.4 1382400 45 100 0 5.3 +-0.4 74880 45 102 0 5.6 +-0.8 91454.4 45 102 1 0.9 +-0.1 17884800 47 106 1 4.4 +-0.3 730944 49 108 1 8.3 +-0.4 3480 49 110 1 0.6 +-0.1 4146 49 110 0 7.9 +-0.5 17640 50 117 1 0.4 +-0.1 1137024 51 114 X 1.1 +-0.5 210.6 51 116 0 1.1 +-0.4 948 51 116 1 5.0 +-0.6 3618 51 118 1 1.6 +-0.2 18000 51 120 1 0.25 +-0.06 497664 52 119 1 4.4 +-0.2 405216 52 121 1 0.9 +-0.1 13305600 53 120 0 9.8 +-0.8 4860 53 120 1 3.1 +-0.3 3180 53 124 X 0.9 +-0.1 361152 53 126 X 0.4 +-0.1 1124928 56 129 1 6.8 +-2.2 7668 56 131 1 3.7 +-2.1 876 56 135 1 7.4 +-1.9 103320 57 130 X 20.0 +-2.9 522 57 132 1 19.7 +-4.9 1458 57 135 X 15 +-12 70200 58 133 0 16.3 +-2.0 17748 58 137 1 12.3 +-0.7 123840 59 136 X 15.6 +-1.3 786 59 138 1 22.7 +-1.1 7560 60 139 1 30.3 +-2.7 19800 61 148 1 0.3 +-0.1 3568320 \END; /*===================================================================*/ |