/*===================================================================*/ /* NRDF D1910 Data No.4 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,4; 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,4; /* 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'17'; /* '17' Independent yield */ INC-ENGY-LAB=9.8MEV/A; CHRG-INC-ION=17+; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,4; INC-ENGY-LAB=9.8MEV/A; TOT-ERR=X%'18'; /* '18' 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 14.3 +-0.7 93600 33 74 X 16.0 +-0.7 1536192 33 76 X 7.7 +-1.0 94752 37 82 1 19.2 +-1.3 23292 37 84 1 11.5 +-0.7 1215.6 39 84 1 0.9 +-0.2 2400 39 86 0 18.5 +-2.1 53064 39 86 1 17.8 +-0.8 2880 39 88 X 9.3 +-0.9 9210240 42 93 1 10.3 +-1.1 24660 43 94 0 9.8 +-0.9 17568 43 95 1 3.0 +-0.6 5270400 43 96 0 11.6 +-0.6 369792 45 99 0 2.5 +-0.6 1382400 45 100 0 12.1 +-0.6 74880 47 106 1 8.8 +-1.2 730944 49 108 1 2.9 +-0.6 3480 49 110 1 0.8 +-0.4 4146 49 110 0 11.0 +-1.4 17640 50 117 1 1.2 +-0.3 1137024 51 116 0 3.3 +-2.1 948 51 116 1 7.7 +-1.5 3618 51 118 1 1.1 +-0.5 18000 52 119 1 4.6 +-0.3 405216 52 121 1 7.5 +-1.3 13305600 53 120 0 1.7 +-0.6 4860 53 120 1 4.6 +-0.4 3180 56 129 1 10.4 +-3.1 7668 56 131 1 2.0 +-0.7 876 57 130 X 13.0 +-1.8 522 57 132 0 8.4 +-1.3 17280 57 132 1 17.7 +-6.0 1458 58 133 0 14.9 +-1.9 17748 58 137 1 16.0 +-1.3 123840 59 136 X 21.9 +-1.9 786 59 138 1 29.8 +-1.5 7560 60 139 1 41.8 +-2.0 19800 61 140 1 29.7 +-1.6 357 \END; /*===================================================================*/ |