/*===================================================================*/ /* NRDF D1942 Data No.12 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,12; D#=D1942; TITLE=/ Angular distributions of protons from the reaction 12C(alpha,p)15N /; ATH=(I.NONAKA'1', H.YAMAGUCHI'1', T.MIKUMO'1', I.UMEDA'2', T.TABATA'2', S.HITAKA'3'); INST-ATH=(2JPNINS'1', 2JPNKTO'2', 2JPNKYU'3'); REF=JPJ; VLP=14(1959)1260; /* Secondary reference - INS-J, 34(1960) (I.Nonaka et al., Numerical data) RCTS=12C(ALPHA,P)15N; PHQS=ANGL-DSTRN; /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,12; /* 2005-10-01 : Compiled, C.Kurokawa + N.Otuka */ PHQ=ANGL-DSTRN; PHYS-FORM=SLD; POL-TGT=0%; ALGN-TGT=0%; ACC=CYC; INST-ACC=2JPNINS; ERS-PRJ=0.5%; BEAM-INTNSTY=[0.1UA; POL-PRJ=0%; DET-PARTCL=P; COINC=NO; ANT-COINC=NO; RCT=12C(ALPHA,P)15N; CHM=X'46'; /* '46' Soots of benzen for small angles and polystyrene for other angles (The latter masked excited states at extreme forward angles theta(lab)<40 deg.) */ THK-TGT=([0.5MG/CM**2,[3.0MG/CM**2)'47'; /* '47' About 0.5 mg/cm**2 for soots of benzen and about 3.0 mg/cm**2 for polystyrene film */ BAC=AU'48'; /* '48' Used for soots of benzene target */ THK-BAC=XMG/CM**2'49'; /* '49' 1 micro-meter thick */ INC-ENGY-LAB=34.6MEV; DET-SYS=(PROP-CNTR'50',NAI'51'); /* '50' To suppress gamma-ray background */ /* '51' To detect proton */ /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,12; SYS-ERR=(1[3%'4',[1%'5',[1%'6',[1%'7'); /* '4' Uncertainty in background subtraction */ /* '5' Uncertainty in the determination of mean target thickness, arising chiefly from the measurements of target areas for both polystyrene and carbon foil targets */ /* '6' Uncertainty in the estimation of the beam current integration */ /* '7' Uncertainty in the estimation of the detector solid angles STATIST-ERR=<10%'8'; /* '8' Maximum statistical uncertainty (3-10%) */ INC-ENGY-LAB=34.6MEV; EXC-ENGY=0.00MEV; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'52' (DEG) (UB/SR) (UB/SR) 11.5 495 +-10.5 17.5 331 +-8.6 23.3 139 +-3.2 29.0 97.0 +-2.8 34.8 101 +-1.3 46.2 121 +-1.4 57.3 43.9 +-1.2 68.2 5.9 +-0.4 79.0 33.8 +-2.7 89.5 60.8 +-3.7 99.6 37.5 +-0.7 109.5 7.4 +-0.3 119.0 3.8 +-0.3 128.2 15.2 +-0.6 137.3 28.6 +-0.8 146.2 20.7 +-0.7 154.8 6.5 +-0.4 159.0 5.5 +-0.4 163.3 6.1 +-0.4 167.5 9.4 +-0.5 \END; /*===================================================================*/ |