/*===================================================================*/ /* NRDF D1945 Data No.2 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,2; D#=D1945; TITLE=/ Anomalies in the scattering of alpha particles by carbon /; ATH=(T.MIKUMO'1'); INST-ATH=(2JPNINS'1'); REF=JPJ; VLP=16(1961)1066; /* Secondary reference - INS-J, 61(1963) (I.Nonaka et al., Numerical data) RCTS=12C(ALPHA,ALPHA)12C; PHQS=ANGL-DSTRN; /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,2; /* 2005-07-22 : Compiled, C.Kurokawa + N.Otuka */ PHQ=ANGL-DSTRN; CHM=ELM; PHYS-FORM=SLD; THK-TGT=1.37MG/CM**2; BAC=SELF; POL-TGT=0%; ALGN-TGT=0%; ACC=CYC; INST-ACC=2JPNINS; DELTA-INC-ENGY-LAB=1.0MEV'2'; /* '2' Absolute error in beam energy */ ERS-PRJ=0.5MEV'3'; /* '3' Relative error in beam energy */ POL-PRJ=0%; DET-PARTCL=ALPHA; COINC=NO; ANT-COINC=NO; DET-SYS=(PROP-CNTR'4',CSI'4'); /* '4' To detect alpha particle */ SOLID-ANGL=XMSR'5'; /* '5' Angular resolutions for three detectors were about 0.5 deg, 0.8 deg and 1.7 deg for extreme-forward (20 to 35 deg), forward (30 to 100 deg) and backward (85 to 150 deg) detectors, respectively. */ RCT=12C(ALPHA,ALPHA)12C; RTY=INEL-SCATT; INC-ENGY-LAB=27.0MEV; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,2; DELTA-INC-ENGY-LAB=1.0MEV'6'; /* '6' Absolute error in beam energy */ SYS-ERR=<10%'7'; /* '7' Maximum uncertainty in target thickness */ STATIST-ERR=<20%'8'; /* '8' Ranged from less than 1% to about 20% depending on the angular position */ INC-ENGY-LAB=27.0MEV; DELTA-THTL=0.2DEG; QVL=-4.43MEV; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'10' (DEG) (MB/SR) (MB/SR) 27.4 28.54 +-0.73 30.8 22.53 +-0.62 34.2 14.65 +-0.53 37.6 11.17 +-0.45 40.9 13.29 +-0.49 42.3 13.64 +-0.33 44.2 17.04 +-0.47 47.5 22.04 +-0.52 48.8 22.44 +-0.42 50.8 24.83 +-0.44 54.0 25.26 +-0.45 57.3 18.56 +-0.40 60.5 13.26 +-0.35 63.7 13.06 +-0.34 66.8 16.18 +-0.37 69.9 19.29 +-0.42 73.0 22.72 +-0.46 76.0 22.53 +-0.46 79.1 20.39 +-0.45 82.0 19.59 +-0.44 85.0 16.89 +-0.42 88.2 17.19 +-0.44 90.7 19.66 +-0.47 93.6 21.32 +-0.49 96.4 20.46 +-0.50 99.0 16.33 +-0.48 101.8 12.27 +-0.46 104.4 6.94 +-0.37 107.1 7.19 +-0.29 109.6 6.85 +-0.29 112.1 10.09 +-0.34 114.2 13.94 +-0.28 117.1 17.88 +-0.30 119.1 19.32 +-0.33 121.8 19.98 +-0.32 123.9 22.62 +-0.36 126.4 13.39 +-0.29 128.3 8.67 +-0.26 130.7 5.98 +-0.20 132.6 5.57 +-0.20 135.0 5.68 +-0.28 136.9 6.97 +-0.34 \END; /*===================================================================*/ |