/*===================================================================*/ /* NRDF D1239 Data No.2 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,2; D#=D1239; TITLE=/ The 1H(11B,n)11C reaction as a practical low background monoenergetic neutron source in the 10 MeV region /; ATH=(S.CHIBA'1', M.MIZUMOTO'1', K.HASEGAWA'2', Y.YAMANOUTI'1', M.SUGIMOTO'1', Y.WATANABE'3', M.DROSG'5'); INST-ATH=(2JPNJAE'1', 2JPNTOH'2', 2JPNKYU'3', 2AUSPVI'4'); REF=NIM/A; VLP=281(1989)581; RCTS=1H(11B,N)11C; PHQS=ANGL-DSTRN; /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,2; /* 1991-06-05 : Converted, Converted to EXFOR E1239 */ /* 2005-06-06 : Compiled, Sr + On. Recompiled with author's data PHQ=ANGL-DSTRN; CHM=ELM; PHYS-FORM=GAS; THK-TGT=XMG/CM**2'5'; /* '5' 0.21 MPa */ BAC=X'6'; /* '6' Molybdenum foil for entrance window and gold plate for beam stopper */ THK-BAC=XMG/CM**2'7'; /* '7' 5-micrometer thick for entrance window and 1.5-mm thick for beam stopper */ POL-TGT=0%; ALGN-TGT=0%; ACC=VDGT; INST-ACC=2JPNJAE; BEAM-INTNSTY=15[80NA; CHRG-INC-ION=4+; POL-PRJ=0%; ION-SOURCE=/ Source of Negative Ions by Cesium Sputtering (SNICS-2) [E. Minehara, et al., JAERI-M 88-181(1988)10] /; DET-PARTCL=N; COINC=NO; ANT-COINC=NO; DET-SYS=(SCT'8',TOF); /* '8' Used as neutron detector (NE213) */ /* Experimental Method: - Time-of-flight /* Related references - M.Drosg, NIM/A, 254(1987)466. Reference with which data agree (Angular distribution deduced from (p,n) data in this reference are consistent with present work except at forward angles.) RCT=1H(11B,N)11C; INC-ENGY-LAB=50MEV; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,2; INC-ENGY-LAB=50MEV; TOT-ERR=11%'18'; /* '18' Statistical uncertainty is negligilble. */ SYS-ERR=([10%'19',[2%'20',>2%'21',[3%'22',[2%'23'); /* '19' Uncertainty in detection efficiency */ /* '20' Uncertainty in gas pressure */ /* '21' Uncertainty in bias setting (>2%) */ /* '22' Uncertainty in flight path length */ /* '23' Uncertainty in dead time correction */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTL DSIGMA/DOMEGA (DEG) (MB/SR) 0.0 64.1 5.0 63.7 10.0 62.2 15.0 66.3 20.0 69.8 21.0 79.2 22.0 81.4 23.0 82.9 24.0 90.5 25.0 94.2 26.0 93.9 27.0 83.6 28.0 181.2 29.0 150.2 30.0 101.0 31.0 48.4 32.0 0. \END; /*===================================================================*/ |