/*===================================================================*/ /* NRDF D1910 Data No.8 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,8; 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,8; /* 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'25'; /* '25' Independent yield */ INC-ENGY-LAB=93.7MEV/A; CHRG-INC-ION=18+; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,8; INC-ENGY-LAB=93.7MEV/A; TOT-ERR=X%'26'; /* '26' 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 7.6 +-0.5 93600 33 74 X 4.0 +-0.3 1536192 33 76 X 2.9 +-0.5 94752 37 82 1 8.9 +-8.0 23292 39 84 1 6.8 +-0.6 2400 39 86 0 12.2 +-2.6 53064 39 86 1 13.2 +-1.0 2880 39 88 X 3.5 +-0.6 9210240 41 88 0 7.2 +-1.2 858 41 92 1 0.8 +-0.2 876960 42 93 1 8.3 +-0.6 24660 43 94 0 12.8 +-0.9 17568 43 96 0 7.8 +-0.4 369792 45 99 0 4.0 +-0.4 1382400 45 100 0 11.4 +-0.9 74880 45 102 0 26.7 +-7.6 91454.4 47 106 1 7.4 +-0.9 730944 49 108 1 16.1 +-1.1 3480 49 110 0 13.9 +-1.3 17640 51 116 0 12.6 +-6.4 948 51 116 1 7.8 +-1.9 3618 51 118 1 3.2 +-0.4 18000 51 120 1 0.5 +-0.1 497664 52 119 1 8.1 +-0.6 405216 52 121 1 3.1 +-0.4 13305600 53 120 1 6.0 +-0.1 3180 53 124 X 2.5 +-0.4 361152 53 126 X 3.7 +-0.3 1124928 56 131 1 13.2 +-3.6 876 56 135 1 1.0 +-0.5 103320 57 130 X 42.1 +-3.3 522 57 132 0 21.8 +-4.6 17280 57 132 1 19.7 +-6.4 1458 57 135 X 86.8 +-5.3 70200 58 133 0 31.0 +-2.7 17748 58 137 1 30.9 +-1.7 123840 59 136 X 81.0 +-5.3 786 59 138 1 43.9 +-2.4 7560 60 139 1 20.6 +-1.5 19800 \END; /*===================================================================*/ |