/*===================================================================*/ /* NRDF D1836 Data No.3 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,3; D#=D1836; TITLE=/Excitation function measurements of 40Ar(p,3n)38K, 40Ar(p,2pn)38Cl and 40Ar(p,2p)39Cl reactions/; PURPOSE=/For the production of 38K, excitation functions of the 40Ar(p,3n)38K reaction and its accompanying reactions 40Ar(p,2pn)38Cl, and 40Ar(p,2p)39Cl were measured at the proton energy of 20.5 - 39.5 MeV to determine the optimum conditions of irradiation./; ATH=(K.NAGATSU'1,2', A.KUBODERA'2', K.SUZUKI'1,3'); INST-ATH=(2JPNIRS'1', 2JPNSUT'2', 2JPNJPN'3'); /* '1' Division of Advanced Technology for Medical Imaging */ /* '2' Department of Radiopharmacy, Faculty of Pharmaceutical Sciences */ /* '3' Subfemtomole Biorecognition Project, Japan Science and Technology Corporation, Osaka */ REF=ARI; VLP=50(1999)389; RCTS=(40AR(P,3*N)38K, 40AR(P,N,2*P)38CL, 40AR(P,2*P)39CL); PHQS=XSECTN; /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,3; /* 2003-10-11 : Compiled */ PHQ=XSECTN; ENR=X%; CHM=ELM; PHYS-FORM=GAS; THK-TGT=XMG/CM**2'4'; /* '4' Argon atmosphere was adjusted to 1010+-5 mbar. */ BAC=AL'5'; /* '5' Target cells were prepared by attaching 50 micrometer thick aluminium foil pieces (purity, 99.9 %) to both ends of an alminium ring with epoxy resin in the glove box filled with pure argon gas. */ POL-TGT=0%; ALGN-TGT=0%; ACC=CYC'6'; /* '6' Isochronous cyclotron, NIRS isochronous cyclotron AVF-930 INST-ACC=2JPNIRS; DELTA-INC-ENGY-LAB=[0.6MEV'7'; /* '7' The uncertainties in proton energy caused by penetrating thirteen cells was estimated to be less than 0.6 MeV when comparing the 40 MeV and 30 MeV primary incident energy curves for 38K in the energy range of 23-28 MeV. */ POL-PRJ=0%; COINC=NO; ANT-COINC=NO; DET-SYS=GE'8'; /* '8' Ge semiconductor detector */ EFCN-DET=/ Detection efficiency was determined using commercially available standard sources, 133Ba, 22Na, 137Cs, and 60Co (Amersham), and 24Na generated by irradiating 27Al with protons. /; RCT=40AR(P,2*P)39CL; INC-ENGY-LAB=20.5[39.5MEV; BEAM-INTNSTY=1UA; DET-PARTCL=X'20'; /* '20' X from X. No decay data given */ /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,3; DELTA-INC-ENGY-LAB=[0.6MEV; SYS-ERR=(3%'21',9%'22'); /* '21' Geometrical error */ /* '22' Detector efficiency */ STATIST-ERR=4[20%'23'; /* '23' Counting statistics */ RSD=39CL; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-ENGY-LAB DELTA-INC-ENGY-LAB XSECTN DELTA-XSECTN FLAG'24' (MEV) (MEV) (MB) (MB) (NODIM) 20.5 +-1.0 2.5 +-0.3 1. 22.6 +-0.8 4.9 +-0.6 1. 23.4 +-0.3 6.6 +-0.7 2. 24.4 +-0.3 8.2 +-0.9 2. 24.5 +-0.7 7.9 +-0.9 1. 25.3 +-0.3 8.7 +-0.9 2. 26.2 +-0.2 9.6 +-1.0 2. 26.3 +-0.6 9.2 +-1.0 1. 27.1 +-0.2 9.9 +-1.0 2. 27.9 +-0.2 10.5 +-1.1 2. 27.9 +-0.2 11.7 +-0.2 3. 28.0 +-0.6 9.5 +-1.1 1. 29.6 +-0.5 11.2 +-1.3 1. 31.2 +-0.4 10.5 +-1.2 1. 32.7 +-0.4 10.0 +-1.1 1. 34.1 +-0.3 11.4 +-1.3 1. 35.5 +-0.3 10.3 +-1.1 1. 36.9 +-0.2 9.0 +-1.0 1. 38.2 +-0.2 9.9 +-1.1 1. 39.5 +-0.2 9.6 +-1.1 1. \END; /*===================================================================*/ |