/*===================================================================*/ /* NRDF D1945 Data No.11 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,11; 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,11; /* 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=31.4MEV; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,11; 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=31.4MEV; DELTA-THTL=0.2DEG; QVL=0MEV; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'19' (DEG) (MB/SR) (MB/SR) 27.9 289.1 +-2.34 31.1 247.4 +-2.38 34.3 122.7 +-1.69 37.6 30.22 +-1.72 40.8 14.88 +-0.32 41.5 7.89 +-0.45 42.7 12.98 +-0.32 44.7 28.40 +-0.82 46.0 37.98 +-0.55 47.2 45.90 +-1.06 49.2 51.08 +-0.64 52.4 41.70 +-0.58 55.5 15.30 +-0.35 58.6 2.80 +-0.16 61.6 6.84 +-0.26 64.8 19.83 +-0.42 67.8 26.20 +-0.48 70.8 23.70 +-0.47 73.8 17.50 +-0.41 76.8 14.80 +-0.38 79.7 19.70 +-0.44 82.6 22.70 +-0.48 85.2 27.80 +-0.54 88.2 23.51 +-0.50 90.9 15.90 +-0.42 93.8 9.27 +-0.32 96.5 9.95 +-0.34 99.2 15.51 +-0.43 101.8 23.81 +-0.54 104.4 28.83 +-0.60 107.0 27.56 +-0.47 109.5 18.59 +-0.39 112.1 6.76 +-0.24 114.4 2.73 +-0.11 116.5 1.32 +-0.08 119.2 4.20 +-0.15 121.5 8.20 +-0.22 123.8 13.26 +-0.26 126.9 14.24 +-0.29 128.2 13.76 +-0.28 130.5 11.80 +-0.27 132.6 5.16 +-0.20 134.7 2.65 +-0.13 136.8 0.90 +-0.08 138.8 0.72 +-0.09 140.8 1.81 +-0.12 142.8 3.63 +-0.16 144.8 4.59 +-0.19 146.8 5.34 +-0.21 148.6 4.97 +-0.19 152.4 1.85 +-0.15 154.2 0.50 +-0.11 156.0 0.15 +-0.03 157.9 0.25 +-0.07 159.0 0.29 +-0.07 \END; /*===================================================================*/ |