/*===================================================================*/ /* NRDF D1945 Data No.8 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,8; 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,8; /* 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=30.0MEV; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,8; 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=30.0MEV; DELTA-THTL=0.2DEG; QVL=-4.43MEV; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'16' (DEG) (MB/SR) (MB/SR) 27.3 10.93 +-0.43 30.6 4.19 +-0.29 33.1 5.83 +-0.29 34.0 5.51 +-0.33 40.7 15.31 +-0.52 43.7 16.78 +-0.45 47.3 13.80 +-0.41 50.3 11.58 +-0.31 53.8 7.57 +-0.26 56.7 4.95 +-0.21 60.2 3.99 +-0.20 61.2 3.56 +-0.18 63.0 2.93 +-0.18 63.6 3.05 +-0.18 66.5 3.61 +-0.22 67.4 3.26 +-0.18 69.3 4.47 +-0.20 69.9 4.42 +-0.20 71.1 5.69 +-0.23 72.7 6.08 +-0.24 73.9 7.02 +-0.25 75.6 7.31 +-0.26 76.2 7.43 +-0.26 78.8 5.94 +-0.24 81.6 4.67 +-0.22 84.7 3.60 +-0.21 87.6 4.24 +-0.22 90.4 10.31 +-0.33 93.3 15.69 +-0.41 96.0 20.26 +-0.48 98.8 18.91 +-0.55 101.5 16.26 +-0.47 104.1 11.53 +-0.41 106.7 8.14 +-0.36 109.3 6.95 +-0.37 111.8 10.84 +-0.44 116.7 17.35 +-0.60 \END; /*===================================================================*/ |