/*===================================================================*/ /* NRDF D1867 Data No.8 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,8; D#=D1867; TITLE=/ Excitation functions for (p,xn) and (p,pxn) reactions on natural 79+81Br, 85+87Rb, 127I and 133Cs upto Ep=52 MeV /; PURPOSE=/ To obtain systematic feautures of medium and low-energy nuclear reactions involving various combinations of particles and targets for producing isotopes of noble gases and their neighbour elements, and to deepen our knowledge of nuclear effects on natural abunbdances of noble gas isotopes as observed in meteorites and other celestial objects. /; ATH=(K.SAKAMOTO'1', M.DOHNIWA'1', K.OKADA'1'); INST-ATH=(2JPNKNZ'1'); /* '1' Department of Chemistry, Faculty of Science */ REF=ARI; VLP=36(1985)481; RCTS=(BR(P,X)79KR, BR(P,X)77KR, 79BR(P,4*N)76KR, BR(P,X)77BR, 79BR(P,X)76BR, 87RB(P,N)87SR, RB(P,X)85SR, RB(P,X)83SR, 87RB(P,X)86RB, RB(P,X)84RB, 127I(P,N)127XE, 127I(P,3*N)125XE, 127I(P,5*N)123XE, 127I(P,X)126I, 127I(P,X)124I, 133CS(P,N)133BA, 133CS(P,3*N)131BA, 133CS(P,5*N)129BA, 133CS(P,X)132CS, 133CS(P,X)130CS); PHQS=XSECTN; /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,8; /* 2004-01-10 : Compiled, Sr + On */ PHQ=XSECTN; ENR=NAT; PHYS-FORM=SLD'2'; /* '2' Each disk was wrapped with an aluminium foil of 2.36 mg/cm**2 and heat-sealed in a Mylar envelope of about 0.9 mg/cm**2. */ THK-TGT=110[330MG/CM**2'3'; /* '3' Nine to ten discs were stacked in order of decreasing thickness by introducing several Al plates and foils. */ POL-TGT=0%; ALGN-TGT=0%; ACC=CYC; INST-ACC=2JPNINS; BEAM-INTNSTY=0.2[0.3UA; POL-PRJ=0%; COINC=NO; ANT-COINC=NO; DET-SYS=GE(LI)'4'; /* '4' Detector efficiencies were determined with calibrated Amersham standards and calibrated 152Eu of the sample size prepared. */ ERS-DET=1.8[2.0KEV'5'; /* '5' FWHM at 1333 keV gamma */ /* Experimental Method: - Stacked target irradiation (10 min for short-lived products and 1h for long-lived products. Energy degradation in the target stack was determined by the stopping-power computation code [K.Komura et al., J. Inorg. Nucl. Chem. 38(1976)2157].) - Beam current integrated (Proton beam was monitored by a 100% feedback-type current integrator, and the results from all the bombardments were found to be in agreement within 10% with those from 27Al(p,alpha+p+n)22Na measurements of the Al monitors.) - Gamma ray spectrometry /* 2006-10-05 : Altered, Is. Re-digitized */ RCT=RB(P,X)85SR; CHM=X'29'; /* '29' Rubidium chloride */ DET-PARTCL=GAMMA'30'; /* '30' Delayed gamma from 85Sr (metastable state) */ MONTR-RCT=/ 27AL(P,N,P,ALPHA)22NA /; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,8; ENGY-GAMMA=231.7KEV'31'; INTNSTY-GAMMA=0.845'31'; HALF-LIFE=68.0MIN'31'; /* '31' Delayed gamma from 85Sr (metastable state) via NONe */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-ENGY-LAB DELTA-INC-ENGY-LAB XSECTN (MEV) (MEV) (MB) 1.856E+01 +-1.425E+00 4.089E+01 3.285E+01 +-1.257E+00 9.081E+01 3.889E+01 +-1.090E+00 8.793E+01 4.438E+01 +-1.006E+00 4.221E+01 5.074E+01 +-1.174E+00 4.856E+01 \END; /*===================================================================*/ |