/*===================================================================*/ /* NRDF D1945 Data No.6 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,6; 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,6; /* 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. */ /* 2007-05-20 : Altered, N.Otuka. Numerical data corrected */ RCT=12C(ALPHA,ALPHA)12C; RTY=INEL-SCATT; INC-ENGY-LAB=29.8MEV; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,6; 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=29.8MEV; DELTA-THTL=0.2DEG; QVL=-4.43MEV; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTC DSIGMA/DOMEGA DELTA-DSIGMA/DOMEGA'14' (DEG) (MB/SR) (MB/SR) 27.3 11.64 +-0.45 30.6 4.69 +-0.33 35.2 4.82 +-0.29 38.5 6.95 +-0.36 40.7 12.51 +-0.46 41.8 15.16 +-0.36 43.7 17.29 +-0.37 47.3 12.37 +-0.41 50.3 8.51 +-0.27 53.8 6.02 +-0.24 56.7 4.33 +-0.21 60.2 3.04 +-0.17 62.4 3.33 +-0.17 63.0 2.64 +-0.17 63.6 3.98 +-0.20 66.5 4.77 +-0.21 67.4 6.05 +-0.23 69.3 6.47 +-0.25 69.9 7.46 +-0.26 72.7 7.66 +-0.27 72.7 8.27 +-0.27 73.9 8.60 +-0.28 75.6 7.17 +-0.26 78.8 4.89 +-0.22 81.6 2.92 +-0.18 84.7 3.04 +-0.18 87.6 6.54 +-0.27 90.4 12.80 +-0.38 93.3 17.51 +-0.44 96.0 19.29 +-0.48 98.6 17.67 +-0.47 101.5 12.30 +-0.42 104.1 9.87 +-0.37 106.7 6.58 +-0.34 109.3 6.38 +-0.38 111.8 10.09 +-0.46 114.3 13.97 +-0.53 116.7 15.33 +-0.59 118.9 16.20 +-0.62 121.5 14.81 +-0.59 \END; /*===================================================================*/ |