/*===================================================================*/ /* NRDF D1647 Data No.15 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,15; D#=D1647; TITLE=/ Measurements of 10Be and 26Al production cross sections with 12 GeV protons by accelerator mass spectrometry /; PURPOSE=/ To discuss the production mechanisms of 10Be and 26Al by spallation and fragmentation in high-energy nuclear reactions /; ATH=(S.SHIBATA'1', M.IMAMURA'1', H.NAGAI'2', K.KOBAYASHI'3', K.SAKAMOTO'4', M.FURUKAWA'5', I.FUJIWARA'6'); INST-ATH=(2JPNINS'1', 2JPNJPN'2', 2JPNTOK'3', 2JPNKNZ'4', 2JPNNAG'5', 2JPNJPN'6'); /* '2' College of Humanities and Sciences, Nihon University, Tokyo */ /* '3' Recearch Center for Nuclear Science and Technology */ /* '4' Department of Chemistry */ /* '5' Department of Chemistry */ /* '6' School of Economics, Otemon Gakuin University, Ibaragi, Osaka */ REF=PR/C; VLP=48(1993)2617; RCTS=(27AL(P,X)10BE, 27AL(P,X)26AL, FE(P,X)10BE, FE(P,X)26AL, 59CO(P,X)10BE, 59CO(P,X)26AL, NI(P,X)10BE, NI(P,X)26AL, CU(P,X)10BE, ZN(P,X)10BE, ZN(P,X)26AL, AG(P,X)10BE, AG(P,X)26AL, 197AU(P,X)10BE, 197AU(P,X)26AL); PHQS=XSECTN; /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,15; /* 2003-08-20 : Converted, Am + On. Data converted to EXFOR E1647 PHQ=XSECTN; CHM=ELM; PHYS-FORM=SLD; BAC=X'7'; /* '7' Each target foil was guarded on both sides with identical foils in order to compensate for recoil losses and to prevent cross-contamination between the targets. */ POL-TGT=0%; ALGN-TGT=0%; ACC=(SYN'8',VDGT'9'); /* '8' For Activation */ /* '9' For Accelerator mass spectrometry */ INST-ACC=(2JPNKEK'8',2JPNTOK'9'); /* '9' Research Center for Nuclear Science and Technology */ INC-ENGY-LAB=12GEV; BEAM-INTNSTY=2.62e+11PPS; POL-PRJ=0%; COINC=NO; ANT-COINC=NO; DET-SYS=SBD'10'; /* '10' Used in accelerator mass spectrometry */ ANL=X'11'; /* '11' Universal formula for target mass dependence of production cross section [X.Campi et al., Phys. Lett. 138B(1984)353]. */ /* Experimental Method: - Activation (Irradiation for 10 min) - Chemical separation (Separated using 200 micro-gram of Be and 500 micro-gram of Al carriers) - Accelerator mass spectrometry (Isotopic ratios of 10Be/9Be and 26Al/27Al were determined by the AMS system using an internal beam-monitor method) RCT=197AU(P,X)26AL; THK-TGT=39.3MG/CM**2; DET-PARTCL=26AL; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,15; TOT-ERR=X%'12'; /* '12' Uncertainties due to the beam-intensity calibration not included */ SYS-ERR=([10%'13',1%'14'); /* '13' Uncertainties due to the beam-intensity calibration */ /* '14' Uncertainties in the amounts of beryllium and aluminium carriers added */ SYS-ERR=2%'29'; /* '29' Uncertainty in the absolute isotopic ratios for 26Al standard samples in AMS analysis */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-ENGY-LAB XSECTN DELTA-XSECTN (GEV) (MB) (MB) 12 1.12 +-0.14 \END; /*===================================================================*/ |