/*===================================================================*/ /* NRDF D1945 Data No.16 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,16; 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,16; /* 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=35.5MEV; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,16; 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=35.5MEV; DELTA-THTL=0.2DEG; QVL=-4.43MEV; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'24' (DEG) (MB/SR) (MB/SR) 33.9 2.88 +-0.05 37.9 12.22 +-0.46 40.5 16.45 +-0.52 41.9 18.67 +-0.39 43.2 18.71 +-0.38 44.6 20.69 +-0.40 45.2 17.59 +-0.36 45.8 16.86 +-0.53 47.1 13.77 +-0.49 49.8 10.45 +-0.30 50.4 9.86 +-0.29 51.0 8.65 +-0.39 52.4 7.67 +-0.26 53.6 6.67 +-0.30 56.7 6.76 +-0.24 59.9 7.97 +-0.26 61.2 8.70 +-0.27 63.1 8.67 +-0.27 66.2 8.01 +-0.27 69.4 4.83 +-0.23 72.4 3.35 +-0.19 73.7 2.93 +-0.17 75.4 2.64 +-0.17 78.4 4.90 +-0.22 81.3 8.69 +-0.29 83.2 9.06 +-0.30 84.3 9.86 +-0.31 87.2 10.03 +-0.32 90.0 8.44 +-0.30 92.8 6.51 +-0.27 95.6 5.45 +-0.27 97.3 6.14 +-0.27 101.0 6.54 +-0.28 103.6 7.18 +-0.30 105.2 5.70 +-0.28 106.3 6.53 +-0.30 108.8 6.27 +-0.26 111.4 8.09 +-0.18 116.3 10.77 +-0.22 117.2 11.73 +-0.22 118.7 9.93 +-0.21 121.0 11.00 +-0.23 123.4 8.77 +-0.21 125.6 6.52 +-0.18 127.9 5.06 +-0.17 130.0 6.24 +-0.18 132.2 9.36 +-0.23 134.3 13.77 +-0.28 135.1 16.01 +-0.31 136.3 17.08 +-0.33 138.4 19.74 +-0.34 140.4 20.04 +-0.36 141.6 18.15 +-0.34 142.4 16.08 +-0.32 144.2 11.63 +-0.28 146.2 6.67 +-0.21 148.1 5.11 +-0.19 149.2 5.21 +-0.20 149.9 6.33 +-0.25 152.0 11.60 +-0.30 153.6 21.07 +-0.41 154.4 25.15 +-0.45 155.5 30.31 +-0.51 157.1 41.02 +-0.57 \END; /*===================================================================*/ |