/*===================================================================*/ /* NRDF D1945 Data No.13 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,13; 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,13; /* 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=34.5MEV; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,13; 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=0MEV; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'21' (DEG) (MB/SR) (MB/SR) 27.9 222.57 +-2.29 31.1 190.28 +-2.07 34.3 97.29 +-1.50 37.6 27.61 +-0.83 39.6 7.24 +-0.40 40.8 2.66 +-0.20 42.7 5.09 +-0.20 44.1 11.26 +-0.52 46.0 20.61 +-0.41 47.2 27.78 +-0.65 49.2 32.54 +-0.52 51.0 31.04 +-0.52 52.4 28.03 +-0.48 55.5 13.28 +-0.33 58.6 2.99 +-0.16 59.8 1.92 +-0.13 61.6 3.81 +-0.18 64.8 14.44 +-0.36 67.8 24.62 +-0.47 69.6 28.11 +-0.51 70.8 27.49 +-0.47 73.8 22.31 +-0.33 76.8 12.66 +-0.25 79.7 5.90 +-0.19 81.4 4.42 +-0.21 82.6 4.68 +-0.16 85.2 7.04 +-0.19 88.2 10.51 +-0.24 89.3 10.72 +-0.35 90.9 10.37 +-0.23 93.8 8.26 +-0.22 96.5 4.51 +-0.17 99.2 2.02 +-0.11 100.2 1.58 +-0.14 101.8 1.45 +-0.09 104.4 2.13 +-0.11 107.0 3.00 +-0.13 108.6 3.12 +-0.16 109.5 2.86 +-0.11 110.6 2.59 +-0.15 112.1 1.86 +-0.11 114.4 0.85 +-0.08 116.5 0.05 +-0.02 118.2 0.07 +-0.02 119.2 0.23 +-0.03 121.5 0.98 +-0.05 123.8 1.60 +-0.07 126.9 1.93 +-0.08 127.3 1.72 +-0.10 128.2 1.63 +-0.07 130.5 1.11 +-0.06 132.6 0.81 +-0.05 133.4 0.64 +-0.07 134.7 0.66 +-0.05 136.8 1.03 +-0.07 138.8 1.55 +-0.08 140.8 1.96 +-0.12 141.6 2.02 +-0.13 142.8 1.88 +-0.13 144.8 1.58 +-0.13 146.8 0.99 +-0.09 147.8 0.57 +-0.07 148.6 0.42 +-0.08 150.6 0.07 +-0.02 152.4 0.28 +-0.05 153.2 0.55 +-0.07 154.2 1.01 +-0.10 155.2 1.19 +-0.11 156.0 1.16 +-0.13 157.9 2.23 +-0.18 159.0 2.32 +-0.16 \END; /*===================================================================*/ |