/*===================================================================*/ /* NRDF D1945 Data No.9 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,9; 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,9; /* 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=30.2MEV; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,9; 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=0MEV; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'17' (DEG) (MB/SR) (MB/SR) 26.5 233.4 +-2.00 29.8 236.0 +-2.02 33.1 152.0 +-1.61 36.3 60.14 +-1.01 39.6 22.61 +-0.63 40.8 20.07 +-0.41 42.7 26.10 +-0.57 46.0 40.38 +-0.72 49.2 40.30 +-0.71 52.4 25.90 +-0.47 55.5 15.96 +-0.47 58.6 7.74 +-0.26 61.6 11.14 +-0.43 64.8 15.67 +-0.37 67.8 16.07 +-0.38 70.8 14.11 +-0.37 73.8 12.65 +-0.34 76.8 16.84 +-0.41 79.7 23.86 +-0.49 82.6 27.32 +-0.53 85.2 23.97 +-0.50 88.2 19.81 +-0.46 90.9 11.94 +-0.37 93.8 10.41 +-0.34 96.5 13.15 +-0.40 99.2 21.24 +-0.51 101.8 27.30 +-0.58 104.4 27.94 +-0.60 107.0 24.39 +-0.57 109.5 17.26 +-0.48 112.1 9.41 +-0.36 114.4 4.84 +-0.27 116.5 4.16 +-0.27 119.2 5.54 +-0.34 \END; /*===================================================================*/ |