/*===================================================================*/ /* NRDF D1945 Data No.10 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,10; 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,10; /* 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=30.2MEV; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,10; 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=30.2MEV; DELTA-THTL=0.2DEG; QVL=-4.43MEV; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'18' (DEG) (MB/SR) (MB/SR) 27.3 11.36 +-0.38 30.5 4.78 +-0.41 34.0 8.00 +-0.38 37.1 14.13 +-0.49 40.7 18.37 +-0.56 40.7 18.83 +-0.56 41.8 19.29 +-0.39 43.7 17.48 +-0.49 47.3 12.83 +-0.40 50.3 9.65 +-0.29 53.8 9.13 +-0.25 57.7 6.90 +-0.24 60.2 4.86 +-0.21 63.0 3.40 +-0.18 66.5 2.17 +-0.25 69.3 2.69 +-0.16 72.7 4.77 +-0.22 75.6 6.40 +-0.24 78.8 8.23 +-0.68 81.6 7.37 +-0.20 84.7 5.15 +-0.24 87.6 6.52 +-0.26 90.4 9.70 +-0.32 93.3 13.92 +-0.39 96.0 18.23 +-0.47 98.8 19.25 +-0.49 101.5 17.82 +-0.49 104.1 13.19 +-0.45 106.7 8.84 +-0.36 109.3 7.70 +-0.37 111.8 10.43 +-0.44 114.3 14.42 +-0.51 116.7 17.60 +-0.56 118.9 16.89 +-0.62 121.5 11.62 +-0.41 \END; /*===================================================================*/ |