/*===================================================================*/ /* NRDF D1762 Data No.25 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,25; 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,25; /* 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=AL(P,N)X; THK-TGT=10760MG/CM**2; INC-ENGY-LAB=1.5GEV; DET-PARTCL=N; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,25; INC-ENGY-LAB=1.5GEV; EMT=N; THTL=15DEG; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; ENGY-EMT-LAB DSIGMA/DOMEGA/DE DELTA-DSIGMA/DOMEGA/DE (MEV) (MB/SR/MEV) (MB/SR/MEV) 1.250E+00 8.533E+00 +-2.825E+00 1.750E+00 5.606E+00 +-2.118E+00 2.500E+00 6.526E+00 +-1.958E+00 3.500E+00 6.695E+00 +-1.721E+00 4.500E+00 5.227E+00 +-1.357E+00 5.500E+00 4.626E+00 +-1.210E+00 7.000E+00 3.738E+00 +-9.592E-01 9.000E+00 2.355E+00 +-6.313E-01 1.250E+01 2.268E+00 +-5.829E-01 1.750E+01 1.827E+00 +-4.784E-01 2.500E+01 1.168E+00 +-3.056E-01 3.500E+01 1.116E+00 +-2.961E-01 4.500E+01 7.898E-01 +-2.171E-01 5.500E+01 7.029E-01 +-2.013E-01 7.000E+01 5.393E-01 +-1.461E-01 9.000E+01 4.925E-01 +-1.474E-01 1.250E+02 5.749E-01 +-1.615E-01 1.750E+02 3.622E-01 +-1.061E-01 2.500E+02 2.678E-01 +-7.712E-02 3.500E+02 2.199E-01 +-6.464E-02 4.500E+02 2.021E-01 +-5.925E-02 5.500E+02 2.041E-01 +-5.902E-02 7.000E+02 2.043E-01 +-5.751E-02 9.000E+02 1.999E-01 +-5.674E-02 1.250E+03 1.118E-01 +-3.113E-02 \END; /*===================================================================*/ |