/*===================================================================*/ /* NRDF D1945 Data No.3 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,3; 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,3; /* 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=ELA-SCATT; INC-ENGY-LAB=29.6MEV; /* Uncertainty at 121.5 deg is printed as +-8.36 mb/sr in INS-J report. This is probably misprint. Compiler judged this should be +-0.36 mb/sr. See also figure in main reference. */ /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,3; 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=0MEV; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'11' (DEG) (MB/SR) (MB/SR) 27.9 257.0 +-2.88 31.1 258.0 +-2.89 34.3 173.0 +-2.40 38.9 77.1 +-1.56 40.8 48.5 +-0.88 42.7 34.46 +-0.74 43.4 27.60 +-0.87 44.7 28.10 +-0.89 46.0 37.94 +-0.78 47.2 41.95 +-1.19 49.2 48.25 +-0.85 52.4 46.22 +-0.87 55.5 33.62 +-0.72 58.6 22.86 +-0.60 61.6 15.32 +-0.51 64.8 12.85 +-0.47 67.8 10.87 +-0.44 70.8 10.88 +-0.45 73.8 12.42 +-0.48 76.8 17.10 +-0.57 79.7 24.09 +-0.69 82.6 24.83 +-0.71 85.2 22.32 +-0.68 88.2 15.58 +-0.57 90.9 10.81 +-0.48 93.8 8.87 +-0.45 96.5 13.81 +-0.56 99.2 19.27 +-0.68 101.8 25.69 +-0.80 104.4 28.20 +-0.85 107.0 25.93 +-0.82 109.5 18.36 +-0.42 112.1 11.29 +-0.31 114.4 6.98 +-0.25 116.5 5.94 +-0.23 119.2 8.05 +-0.25 121.5 10.33 +-0.36 123.8 14.67 +-0.37 126.9 14.59 +-0.39 128.2 14.34 +-0.37 130.5 11.91 +-0.35 132.6 9.08 +-0.29 134.7 5.91 +-0.27 136.8 3.89 +-0.25 138.8 3.06 +-0.32 140.8 4.22 +-0.30 141.6 5.21 +-0.35 144.8 7.24 +-0.37 146.8 8.45 +-0.42 148.6 7.65 +-0.42 150.6 7.09 +-0.41 152.4 4.73 +-0.45 154.2 3.67 +-0.40 156.0 1.73 +-0.26 157.9 1.58 +-0.28 159.0 1.74 +-0.27 \END; /*===================================================================*/ |