/*===================================================================*/ /* NRDF D1750 Data No.48 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,48; D#=D1750; TITLE=/ Measurements of double differential neutron production cross sections by 135 MeV/nucleon He, C, Ne and 95 MeV/nucleon Ar ions /; PURPOSE=/ To performe a series of systematic studies to measure the double-differential neutron production cross sections by heavy ions for energies from about 100 to 800 MeV/nucleon. ATH=(H.SATO'1', T.KUROSAWA'2', H.IWASE'1', T.NAKAMURA'1', Y.UWAMINO'3', N.NAKAO'4'); INST-ATH=(2JPNTOH'1', 2JPNETL'2', 2JPNIPC'3', 2JPNKEK'4'); /* '1' Cyclotron and Radioisotope Center */ REF=PR/C; VLP=64(2001)034607; RCTS=(C(4HE,N)X, 27AL(4HE,N)X, CU(4HE,N)X, PB(4HE,N)X, C(12C,N)X, 27AL(12C,N)X, CU(12C,N)X, PB(12C,N)X, C(20NE,N)X, 27AL(20NE,N)X, CU(20NE,N)X, PB(20NE,N)X, C(40AR,N)X, 27AL(40AR,N)X, CU(40AR,N)X, PB(40AR,N)X, H(4HE,N)X); PHQS=(ENGY-SPEC, ANGL-DSTRN, XSECTN'5'); /* '5' The neutron production cross section integrated over energies above 20 MeV, and also over partial angular range. */ /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,48; /* 2002-02-01 : Compiled+Checked, Sr + On */ /* 2009-08-23 : Altered, Nf. 021-052 corrected */ RTY=HEAVY-ION-RCT; ENR=NAT'6'; /* '6' The enrichments of targets are not given in the reference. But compiler asked T.Kurosawa. */ BAC=X; POL-TGT=0%; ALGN-TGT=0%; ACC=CYC; INST-ACC=2JPNIPC; POL-PRJ=0%; DET-PARTCL=N; COINC=NO; ANT-COINC=NO; DET-SYS=(MAG,SCT'7',SCT'8',TOF,EDE); /* '7' Used as Delta-E counter */ /* '8' Used as E counter, calibrated with a 60Co gamma-ray source ERS-DET=XKEV'9'; /* '9' The energy resolutions of the measured neutron spectra are about 3% for neutrons having energies near 100 MeV. */ EFCN-DET=/ The neutron detection efficiencies were calculated with the Monte Carlo code of Cecil et al. for all energy ranges. References is R. A. Cecil, B. D. Anderson, and R. Madey, Nucl. Instrum. Methods 161, 439 (1979). /; /* 2003-05-30 : Altered, On. Free text on REACTION corrected */ /* 2005-08-13 : Altered, On. REACTION corrected (CP-D/430) */ /* 2006-09-05 : Altered, On. Re-digitized */ /* 2009-08-23 : Altered, Nf. E-MIN: 5 MeV -> 20 MeV */ RCT=C(40AR,N)X; PHQ=XSECTN'100'; /* '100' The neutron production cross section integrated over energies above 20 MeV, and also over partial angular range. CHM=ELM; PHYS-FORM=SLD; THK-TGT=216MG/CM**2; INC-ENGY-LAB-RANGE=135MEV/A; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,48; INC-ENGY-LAB=135MEV/A; STATIST-ERR=2[30%'101'; /* '101' The statistical uncertainties vary from 2 to 5% for the low- to medium-energy (about 10-100 MeV) region of the spectra and increase to about 30% at the highest energies. */ NORM=/ The total normalization uncertainty is within 17%. /; ENGY-EMT-LAB=>20MEV; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTL-MIN THTL-MAX XSECTN (DEG) (DEG) (MB) 0. 90. 3.417E+03 0. 180. 3.515E+03 \END; /*===================================================================*/ |