/*===================================================================*/ /* NRDF D1910 Data No.7 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,7; 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,7; /* 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'23'; /* '23' Cummulative yield */ INC-ENGY-LAB=93.7MEV/A; CHRG-INC-ION=18+; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,7; INC-ENGY-LAB=93.7MEV/A; TOT-ERR=X%'24'; /* '24' 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) 30 65 X 2.7 +-0.6 21090240 30 69 1 0.4 +-0.1 49536 30 72 X 0.4 +-0.2 167400 31 66 X 5.2 +-1.5 33840 31 67 X 10.7 +-0.7 281664 32 69 X 7.5 +-1.3 140580 33 71 X 8.2 +-0.5 233280 34 72 X 1.4 +-0.2 725760 34 73 0 6.9 +-0.6 25740 34 75 X 13.5 +-1.0 10350720 35 75 X 7.8 +-1.2 5832 35 76 0 8.7 +-2.7 58320 35 77 0 10.4 +-0.6 205632 36 79 0 11.9 +-1.7 126144 37 81 0 19.2 +-1.0 16488 37 83 X 20.6 +-1.0 7447680 37 84 0 2.7 +-0.3 2839968 38 82 X 5.1 +-0.7 2207520 38 83 0 14.9 +-1.5 116640 38 85 0 27.0 +-1.2 5602176 39 87 0 25.0 +-1.0 289440 39 87 1 4.9 +-0.3 46440 40 86 X 5.0 +-2.3 59400 40 88 X 16.9 +-1.5 7205760 40 89 0 19.6 +-0.9 282528 41 90 0 21.1 +-1.0 52560 42 90 X 4.7 +-0.9 20412 43 93 0 18.0 +-1.9 9900 43 95 0 20.2 +-0.9 72000 44 95 X 7.3 +-1.5 5940 44 97 X 19.6 +-0.9 250560 45 99 1 20.1 +-1.6 16200 45 101 1 25.8 +-1.9 374976 46 99 X 17.9 +-2.0 1284 46 100 X 10.3 +-0.8 313632 46 101 X 22.7 +-2.3 30492 47 103 0 13.9 +-2.6 3942 47 104 0 12.0 +-3.5 4152 47 105 0 27.8 +-1.5 3567456 48 104 X 8.2 +-9.8 3462 48 107 X 34.9 +-9.9 23400 49 109 0 35.4 +-1.7 15120 49 111 0 34.4 +-1.5 244512 50 109 X 19.6 +-2.7 1080 50 110 X 8.6 +-3.1 14400 50 113 0 56.2 +-2.9 9944640 51 113 X 34.3 +-1.6 400.2 51 115 X 46.4 +-2.6 1926 51 117 X 8.5 +-0.6 10080 52 114 X 17.6 +-1.3 912 52 116 X 32.3 +-2.7 8964 52 117 X 36.6 +-3.0 3708 52 118 X 23.5 +-2.9 518400 52 119 0 40.9 +-2.0 57780 52 121 0 47.6 +-2.8 1451520 53 118 0 26.9 +-2.6 822 53 119 X 46.7 +-2.7 1146 53 121 X 91.2 +-4.6 7632 53 123 X 88.8 +-5.3 47520 54 122 X 42.0 +-3.2 72360 54 123 X 56.7 +-2.8 7488 54 125 0 65.9 +-3.3 60840 54 127 0 44.0 +-2.2 3145824 55 125 X 73.3 +-9.0 2700 55 127 X 70.5 +-3.6 22500 55 129 X 81.7 +-4.0 115560 56 124 X 53.9 +-5.3 714 56 126 X 30.4 +-3.5 6012 56 128 X 58.7 +-2.9 209952 56 131 0 73.0 +-3.7 1019520 56 133 0 87.1 +-7.3 332389.44 57 129 X 25.0 +-1.7 696 57 131 X 82.4 +-6.4 3540 58 130 X 30.7 +-4.4 1500 58 131 0 69.5 +-1.3 600 58 132 X 64.8 +-3.8 12636 58 134 X 70.6 +-8.6 273024 58 135 0 95.1 +-5.9 63360 58 139 0 171.7 +-8.7 11897280 59 137 X 102.5 +-9.9 4608 59 139 X 189.2 +-9.6 15876 60 135 0 24.0 +-3.4 744 60 136 X 20.4 +-1.8 3042 \END; /*===================================================================*/ |