/*===================================================================*/ /* NRDF D1762 Data No.51 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,51; D#=D1762; TITLE=/MEASUREMENT OF NEUTRON-PRODUCTION DOUBLE-DIFFERENTIAL CROSS SECTIONS FOR NUCLEAR SPALLATION REACTION INDUCED BY 0.8, 1.5 AND 3.0 GEV PROTONS/; PURPOSE=/TO MEASURE THE NEUTRON-PRODUCTION DOUBLE-DIFFERENTIAL CROSS SECTIONS FROM THE SPALLATION REACTION./; ATH=(K.ISHIBASHI'1', H.TAKADA'2', T.NAKAMOTO'1', N.SHIGYO'1', K.MAEHATA'1', N.MATSUFUJI'1', S.MEIGO'2', S.CHIBA'2', M.NUMAJIRI'3', Y.WATANABE'4', T.NAKAMURA'5'); INST-ATH=(2JPNKYU'1', 2JPNJAE'2', 2JPNLEP'3', 2JPNKYU'4', 2JPNTOH'5'); /* '1'DEPARTMENT OF NUCLEAR ENGUNEERING */ /* '4'ENERGY CONVERSION ENGINEERING */ /* '5'CYCLOTRON RADIOISOTOPE CENTER */ REF=NST; VLP=34(1997)529; RCTS=(C(P,N)X, AL(P,N)X, FE(P,N)X, IN(P,N)X, PB(P,N)X); PHQS=ENGY-SPEC; /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,51; /* 2002-10-04 : COMPILED */ RTY=SPAL; PHQ=ENGY-SPEC; ENR=NAT; CHM=ELM; PHYS-FORM=SLD; POL-TGT=0%; ALGN-TGT=0%; ACC=SYN'6'; /* '6' THE PI-2 LINE OF THE 12 GEV PROTON SYNCHROTRON */ INST-ACC=2JPNLEP; BEAM-INTNSTY=XMA'7'; /* '7' IN A LEVEL OF 100000 PROTONS / 2.5 S. */ POL-PRJ=0%; ION-SOURCE=/ INCIDENT PROTONS WERE GENERATED AS SECONDARY BEAM. TOF METHOD WITH A PAIR OF PILOT U SCINTILLATORS WAS ADOPTED FOR THE SEPARATION OF PROTONS AND PIONS. /; DET-PARTCL=N; COINC=NO; ANT-COINC=NO; DET-SYS=(TOF,SCT'8',PLST-SCT'9'); /* '8' TWO DEFFERENT SIZES (DIAMETERXTHICK=12.7 CM X 12.7 CM, 5.08 CM X 5.08 CM) OF NE213 NEUTRON DETECTORS WERE PLACED IN THE DIRECTIONS OF 15 DEGREE, 30 DEGREE, 60 DEGREE, 90 DEGREE, 120 DEGREE AND 150 DEGREE */ /* '9' NE102A PLASTIC SCINTILLATORS WERE MOUNTED AS VETO DETECTORS TO ELIMINATE CHARGED PARTICLE EVENTS BY THE ANTI-COINCIDENCE METHOD ERS-DET=XKEV'10'; /* '10' THE ENERGY RESOLUTION OF ONE SIGMA IS SHOWN IN FIG. 5, P533 IN REFERENCE. THE TYPICAL RESOLUTION IS 5% AT A NEUTRON ENERGY OF 10 MEV AND 8% AT 100 MEV. */ EFCN-DET=/ THE UNCERTAINTY OF THE NEUTRON DETECTION EFFICIENCY WAS DETERMINED TO BE 10% IN THE NEUTRON ENERGY REGION BELOW 80 MEV, WHILE IT WAS SET AT 15% AT ENERGIES ABOVE 80 MEV. /; ANL=(MONTE-MTHD'11',MONTE-MTHD'12'); /* '11' HIGH ENEGY TRANSPORT CODE (HETC) [K.C.CHANDLER, T.W.ARMSTRONG, CCC-178, (1977)] */ /* '12' NUCLEUS [TAKADA, H.: J. NUCL. SCI. TECHNOL., 33, 275 (1996)] RCT=FE(P,N)X; THK-TGT=23610MG/CM**2; INC-ENGY-LAB=3.0GEV; DET-PARTCL=N; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,51; INC-ENGY-LAB=3.0GEV; EMT=N; THTL=60DEG; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; ENGY-EMT-LAB DSIGMA/DOMEGA/DE DELTA-DSIGMA/DOMEGA/DE (MEV) (MB/SR/MEV) (MB/SR/MEV) 1.250E+00 2.077E+01 +-5.819E+00 1.750E+00 2.057E+01 +-5.760E+00 2.500E+00 1.942E+01 +-5.333E+00 3.500E+00 1.484E+01 +-3.741E+00 4.500E+00 1.376E+01 +-3.475E+00 5.500E+00 9.652E+00 +-2.478E+00 7.000E+00 8.055E+00 +-2.036E+00 9.000E+00 6.470E+00 +-1.656E+00 1.250E+01 4.181E+00 +-1.058E+00 1.750E+01 2.845E+00 +-7.327E-01 2.500E+01 1.689E+00 +-4.360E-01 3.500E+01 1.921E+00 +-4.971E-01 4.500E+01 1.563E+00 +-4.115E-01 5.500E+01 1.298E+00 +-3.510E-01 7.000E+01 1.052E+00 +-2.754E-01 9.000E+01 6.732E-01 +-2.056E-01 1.250E+02 5.680E-01 +-1.638E-01 1.750E+02 3.578E-01 +-1.077E-01 2.500E+02 2.264E-01 +-6.737E-02 3.500E+02 1.004E-01 +-3.278E-02 4.500E+02 5.928E-02 +-2.210E-02 5.500E+02 6.119E-02 +-2.306E-02 7.000E+02 3.355E-02 +-1.174E-02 \END; /*===================================================================*/ |