/*===================================================================*/ /* NRDF D2026 Data No.21 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,21; D#=D2026; TITLE=/ Rare gas isotope yields in Bremsstrahlung-induced nuclear reactions of 41K, 87Rb, 127I, 133Cs, and 139La /; ATH=(Y.OURA'2', A.YAZAWA'1', M.YOSHIDA'1', S.R.SARKAR'2', K.SAKAMOTO'1, 2', S.SHIBATA'3', I.FUJIWARA'4', M.FURUKAWA'5'); INST-ATH=(2JPNKNZ'1', 2JPNKNZ'2', 2JPNINS'3', 2JPNJPN'4', 2JPNNAG'5'); /* '1' Department of Chemistry */ /* '2' Division of Physical Sciences, Graduate School of Natural Science and Technology */ /* '4' School of Economics, Otemon Gakuin Univ., Ibaragi */ /* '5' Department of Chemistry */ REF=RCA; VLP=68(1995)27; RCTS=(41K(GAMMA,PIP)41AR, 87RB(GAMMA,PIP)87KR, 133CS(GAMMA,PIP)133XE, 127I(GAMMA,PIN)127XE, 127I(GAMMA,PIN,2*N)125XE, 127I(GAMMA,PIN,4*N)123XE, 127I(GAMMA,PIN,5*N)122XE, 127I(GAMMA,PIN,6*N)121XE, 133CS(GAMMA,X)131XE, 133CS(GAMMA,X)129XE, 133CS(GAMMA,X)127XE, 133CS(GAMMA,X)125XE, 133CS(GAMMA,X)123XE, 133CS(GAMMA,X)122XE, 133CS(GAMMA,X)121XE, 139LA(GAMMA,X)129XE, 139LA(GAMMA,X)127XE, 139LA(GAMMA,X)125XE, 139LA(GAMMA,X)123XE, 139LA(GAMMA,X)122XE, 139LA(GAMMA,X)121XE); PHQS=XSECTN; /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,21; /* 2007-02-17 : Compiled, N.Otuka */ /* Related references - S.R.Sarkar et al., RCA, 55(1991)139. (Correction for isobaric precursor decays) PHQ=XSECTN; PHYS-FORM=SLD; THK-TGT=([640MG/CM**2,[860MG/CM**2); POL-TGT=0%; ALGN-TGT=0%; ACC=(LINAC'6',SYN'7'); /* '6' 300 MeV electron linac for E(max) <250 MeV */ /* '7' 1.3 GeV electron synchrotron for E(max) >250 MeV */ INST-ACC=(2JPNTOH'8',2JPNINS); /* '8' Laboratory of Nuclear Science */ POL-PRJ=0%; ION-SOURCE=/ Bremsstrahlung (By internal target of Pt with 0.5 mm (Sendai) or 0.05 mm (Tokyo) thickness) /; COINC=NO; ANT-COINC=NO; DET-SYS=HPGE'9'; /* '9' To perform gamma-ray measurement */ ANL=X'10'; /* '10' Cascade-evaporation code PICA */ /* Experimental Method: - Activation (Irradiated for 5-10 min (Sendai) and 60-240 min (Tokyo)) - Gamma ray spectrometry (Measured over 3 months) /* Authors give yield with unit of [micro-barn/equivalent quantum]. */ /* Correction of isobaric precursor decays by iterative non-linear squares fit for cumulative yields */ RCT=139LA(GAMMA,X)121XE; CHM=X'123'; /* '123' LaCl3 */ INC-ENGY-LAB-RANGE=250[1000MEV; DET-PARTCL=GAMMA'124'; /* '124' Delayed gamma from 121Xe */ /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,21; ENGY-GAMMA=252.7KEV'125'; INTNSTY-GAMMA=0.176'125'; HALF-LIFE=40.1MIN'125'; /* '125' Delayed gamma from 121Xe */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-ENGY-LAB-MAX SIGMA',126' DELTA-SIGMA',127' SIGMA',128' DELTA-SIGMA',129' (MEV) (UB) (UB) (UB) (UB) 1000 0.23 +-0.1 X +-X 800 0.29 +-0.14 X +-X 600 0.24 +-0.01 X +-X 500 0.23 +-0.01 0.18 +-0.04 400 0.17 +-0.01 X +-X 365 0.097 +-0.014 X +-X 315 0.0585 +-0.0009 X +-X 275 0.025 +-0.004 X +-X 250 0.006 +-0.001 X +-X \END; /*===================================================================*/ |