/*===================================================================*/ /* NRDF D1945 Data No.14 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,14; 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,14; /* 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. */ /* 2007-05-20 : Altered, N.Otuka. Numerical data corrected */ RCT=12C(ALPHA,ALPHA)12C; RTY=INEL-SCATT; INC-ENGY-LAB=34.5MEV; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,14; 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=34.5MEV; DELTA-THTL=0.2DEG; QVL=-4.43MEV; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'22' (DEG) (MB/SR) (MB/SR) 28.6 6.23 +-0.46 32.4 2.87 +-0.30 35.9 5.41 +-0.37 39.4 10.11 +-0.49 41.1 13.21 +-0.43 42.5 13.65 +-0.57 43.9 13.50 +-0.33 45.8 11.19 +-0.50 47.1 10.64 +-0.30 48.5 8.45 +-0.36 50.5 6.55 +-0.25 52.4 4.79 +-0.21 53.6 3.91 +-0.19 56.8 5.46 +-0.22 60.0 7.69 +-0.26 61.2 8.59 +-0.27 63.2 9.05 +-0.28 66.3 7.06 +-0.25 69.4 3.91 +-0.19 71.2 3.36 +-0.17 72.5 2.51 +-0.15 75.6 3.73 +-0.14 78.5 7.28 +-0.19 81.5 10.41 +-0.23 83.2 10.59 +-0.33 84.4 11.22 +-0.24 87.3 9.94 +-0.23 90.1 7.17 +-0.20 91.2 6.37 +-0.27 92.9 5.70 +-0.18 95.7 4.97 +-0.17 98.5 5.94 +-0.19 101.1 6.79 +-0.21 102.2 7.17 +-0.30 103.8 6.81 +-0.22 106.4 6.40 +-0.21 109.0 6.72 +-0.21 110.6 5.89 +-0.24 111.5 5.50 +-0.14 112.6 6.00 +-0.24 114.0 7.31 +-0.25 116.4 9.08 +-0.29 118.6 9.86 +-0.15 120.1 9.49 +-0.20 121.1 8.50 +-0.14 123.5 7.10 +-0.13 125.7 5.66 +-0.13 127.8 5.71 +-0.13 129.1 6.90 +-0.19 130.1 8.43 +-0.15 133.1 11.94 +-0.18 134.4 15.49 +-0.21 135.2 16.67 +-0.31 136.5 18.07 +-0.23 138.5 18.73 +-0.25 140.7 16.59 +-0.23 142.5 12.33 +-0.28 143.2 11.70 +-0.27 144.3 8.26 +-0.24 146.3 6.33 +-0.22 148.3 6.05 +-0.21 149.4 8.34 +-0.24 150.0 9.76 +-0.26 151.7 17.16 +-0.36 153.6 26.90 +-0.45 154.2 30.29 +-0.49 155.3 35.84 +-0.53 156.4 41.78 +-0.58 157.1 46.73 +-0.62 158.9 51.78 +-0.65 159.8 52.56 +-0.67 \END; /*===================================================================*/ |