/*===================================================================*/ /* NRDF D1945 Data No.12 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,12; 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,12; /* 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=31.4MEV; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,12; 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=-4.43MEV; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'20' (DEG) (MB/SR) (MB/SR) 30.6 7.88 +-0.44 34.0 4.11 +-0.34 37.3 10.55 +-0.50 40.7 22.04 +-0.71 42.0 27.60 +-0.45 44.0 29.10 +-0.47 45.3 26.50 +-0.78 47.3 22.50 +-0.42 47.9 20.95 +-0.69 50.5 12.04 +-0.54 50.6 12.40 +-0.31 53.8 8.02 +-0.25 57.0 7.84 +-0.24 60.2 9.24 +-0.27 63.2 7.51 +-0.26 66.5 4.42 +-0.25 68.5 1.97 +-0.14 72.7 3.12 +-0.17 75.7 6.97 +-0.26 78.7 11.10 +-0.31 81.6 12.35 +-0.35 84.6 9.60 +-0.32 87.5 7.26 +-0.28 90.4 7.18 +-0.29 93.1 10.24 +-0.34 96.0 15.78 +-0.44 98.7 21.30 +-0.50 101.4 20.21 +-0.50 103.9 17.33 +-0.49 106.6 14.01 +-0.46 109.2 9.63 +-0.41 111.7 8.26 +-0.32 114.1 9.04 +-0.45 116.6 16.36 +-0.33 119.0 18.53 +-0.37 123.7 16.83 +-0.38 126.0 14.61 +-0.38 128.1 13.67 +-0.37 133.4 20.46 +-0.37 134.6 20.56 +-0.46 136.6 25.28 +-0.45 138.7 23.59 +-0.43 140.7 13.90 +-0.35 142.7 12.21 +-0.35 144.6 7.39 +-0.35 146.5 8.19 +-0.34 147.7 14.50 +-0.43 150.2 21.94 +-0.53 152.0 34.61 +-0.66 153.8 49.30 +-1.01 155.5 62.56 +-0.90 157.3 104.3 +-1.12 159.0 74.70 +-1.00 160.0 77.00 +-1.02 \END; /*===================================================================*/ |