/*===================================================================*/ /* NRDF D1576 Data No.3 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,3; D#=D1576; TITLE=/ Coulomb dissociation of 8B and the 7Be(p,gamma)8B reaction at low energies /; PURPOSE=/ To first establish the usefulness of the Coulomb dissociation method for studying the 7Be(p,gamma)8B reaction at lower energies. /; ATH=(T.MOTOBAYASHI'1', N.IWASA'1', Y.ANDO'1', M.KUROKAWA'1', H.MURAKAMI'1', J.RUAN'1', S.SHIMOURA'1', S.SHIRATO'1', N.INABE'2', M.ISHIHARA'2', T.KUBO'2', Y.WATANABE'2', M.GAI'3', R.H.FRANCE III'3', K.I.HAHN'3', Z.ZHAO'3', T.NAKAMURA'4', T.TERANISHI'4', Y.FUTAMI'5', K.FURUTAKA'6', TH.DELBAR'7'); INST-ATH=(2JPNRIK'1', 2JPNIPC'2', 1USAYAL'3', 2JPNTOK'4', 2JPNTSU'5', 2JPNTIT'6', 2BLGLVN'7'); /* '1' Department of Physics */ /* '3' A.W.Wright Nuclear Structure Laboratory, Department of Physics */ /* '4' Department of Physics */ /* '5' The Institute of Physics */ /* '6' Department of Physics */ /* '7' Institut de Physique Nucleaire */ REF=PRL; VLP=73(1994)2680; RCTS=(208PB(8B,8B)208PB, 7BE(P,GAMMA)8B); PHQS=(ENGY-SPEC, ANGL-DSTRN, ASTR-SFCTR); /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,3; /* 2005-10-05 : Converted, Kc + Sr + On. Converted to EXFOR E1576 /* 2005-11-15 : Altered, At + Sr. Re-digitized */ ENR=99.5%; CHM=ELM; PHYS-FORM=SLD; THK-TGT=50MG/CM**2; POL-TGT=0%; ALGN-TGT=0%; ACC=(CYC'8',PRJFS'9'); /* '8' Primary 12C beam of 91 MeV/A bombarded a 9Be target of 1.4 g/cm**2 thickness. Reaction products were analyzed by the projectile fragment separator RIPS to obtain a radioactive 8B beam. */ /* '9' RIKEN projectile fragment separator (RIPS) */ INST-ACC=(2JPNIPC'8',2JPNIPC'9'); BEAM-INTNSTY=XA'10'; /* '10' 2*10**4/s */ POL-PRJ=0%; DET-PARTCL=(P,7BE); COINC=(P,7BE); ANT-COINC=NO; DET-SYS=(SCT'11',TOF'12',EDE); /* '11' Plastic scintillator: To detect proton and 7Be */ /* '12' To determine energy of breakup fragments */ ERS-DET=XKEV'13'; /* '13' Energy resolution is 100 and 130 keV at 0.6 and 1.7 MeV of relative energy between 7Be and neutron, respectively. */ /* Experimental Method: - Time-of-flight (To determine energy of breakup fragments) - Particle identification by 'E/Delta E' measurement RCT=208PB(8B,8B)208PB; RTY=INEL-SCATT; PHQ=ANGL-DSTRN; INC-ENGY-LAB=46.5MEV/A; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,3; INC-ENGY-LAB=46.5MEV/A; EMT-1=P; EXC-ENGY-EMT=0.7[0.9MEV'18'; /* '18' Relative energy between 7Be and proton (= Excitation energy of 8B measured from 7Be and proton threshold.) */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; THTL DATA1'19' DELTA-DATA1'19' (DEG) (UNIT) (UNIT) 5.123E-01 5.445E+01 +-1.016E+02 1.534E+00 3.558E+02 +-2.246E+02 2.493E+00 9.352E+02 +-2.246E+02 3.494E+00 5.039E+02 +-1.872E+02 4.509E+00 1.529E+02 +-8.021E+01 5.491E+00 1.041E+01 +-NEGLIGIBLE \END; /*===================================================================*/ |