/*===================================================================*/ /* NRDF D1945 Data No.4 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,4; 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,4; /* 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=29.6MEV; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,4; 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=29.6MEV; DELTA-THTL=0.2DEG; QVL=-4.43MEV; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'12' (DEG) (MB/SR) (MB/SR) 28.4 7.08 +-0.54 31.8 3.00 +-0.41 35.2 5.94 +-0.44 38.5 10.44 +-0.59 41.8 14.75 +-0.59 43.7 17.19 +-0.52 47.3 17.83 +-0.53 47.6 16.00 +-0.73 49.6 12.88 +-0.67 50.3 12.04 +-0.44 53.8 8.89 +-0.38 56.7 6.44 +-0.32 60.2 4.82 +-0.30 63.0 3.65 +-0.25 66.5 5.05 +-0.31 69.3 6.62 +-0.34 72.7 8.79 +-0.41 75.7 9.44 +-0.42 78.8 6.35 +-0.35 81.6 4.42 +-0.30 84.7 2.89 +-0.24 87.5 5.06 +-0.32 90.4 10.85 +-0.48 93.3 17.59 +-0.63 96.0 21.74 +-0.71 98.8 20.83 +-0.71 101.5 20.12 +-0.71 104.1 13.66 +-0.61 106.7 7.58 +-0.51 109.3 7.18 +-0.57 111.8 10.12 +-0.36 114.2 10.81 +-0.38 116.7 18.07 +-0.41 118.9 17.63 +-0.43 121.5 14.13 +-0.46 123.5 11.84 +-0.46 126.0 13.67 +-0.40 128.2 13.35 +-0.47 130.4 14.67 +-0.49 132.6 19.85 +-0.55 134.7 19.61 +-0.56 136.7 20.96 +-0.60 138.8 19.21 +-0.61 140.8 18.22 +-0.59 142.7 12.97 +-0.46 144.6 11.71 +-0.55 146.5 11.00 +-0.54 148.2 10.84 +-0.61 150.2 11.87 +-0.67 152.0 20.51 +-0.61 153.8 30.60 +-0.75 155.5 32.84 +-0.85 157.3 35.71 +-0.94 158.9 34.72 +-1.06 159.9 29.96 +-1.11 \END; /*===================================================================*/ |