/*===================================================================*/ /* NRDF D1847 Data No.3 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,3; D#=D1847; TITLE=/Production of 7Be from proton bombardment of light elements/; ATH=(T.INOUE'1', S.TANAKA'1'); INST-ATH=(2JPNINS'1'); /* '1' Institute for Nuclear Study */ REF=JIN; VLP=38(1976)1425; RCTS=(9BE(P,7BE)X, B(P,7BE)X, 999N(P,7BE)X, 16O(P,7BE)X); PHQS=XSECTN; /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,3; /* 2003-10-31 : Converted, Data converted from EXFOR O0565 */ PHQ=XSECTN; BAC=SELF; POL-TGT=0%; ALGN-TGT=0%; POL-PRJ=0%; DET-PARTCL=GAMMA'2'; /* '2' Delayed gamma (478 keV) from 7Be (Half-life=53.6 day) is measured. Abundance of this decay mode is 0.103. */ COINC=NO; ANT-COINC=NO; DET-SYS=(GE(LI),NAI'3'); /* '3' Used for measurement after chemical separation */ /* Experimental Method: - Beam current integrated (Beam current was measured by a 100% feed-back type current integrator. The uncertainty in the beam current integration was estimated to be 3-10%.) - Gamma ray spectrometry (The activity of 7Be was measured more than two weeks after irradiation, when the short-lived activities had been decayed out. No radioactive impurities were observed in the gamma-spectra.) - Chemical separation (Chemical separation of beryllium was applied to a few targets in each run to eliminate a possible interference of other activities and obtain the absolute cross sections.) RCT=999N(P,7BE)X; CHM=X'24'; /* '24' VN (vanadium nitride) */ PHYS-FORM=SLD'25'; /* '25' Powder */ THK-TGT=81[124MG/CM**2; ACC=CYC'26'; /* '26' INSJ cyclotron operating in the FM mode. The energy of the incident protons was 51.8+-0.2 MeV. */ INST-ACC=2JPNINS; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,3; SYS-ERR=(3%'27',10%'28'); /* '27' Low limit of the uncertainty in the beam current interagtion. */ /* '28' High limit of the uncertainty in the beam current integration, */ EMT=GAMMA'29'; /* '29' Delayed Gammas */ DELTA-XSECTN=2.0%'30'; /* '30' Data-point reader uncertainty */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-ENGY-LAB DELTA-INC-ENGY-LAB'31' XSECTN DELTA-XSECTN'32' (MEV) (MEV) (MB) (%) 12.18 +-0.5 0.267 +-X 14.7 +-0.5 9.9 +-16. 17.92 +-X 24. +-X 20.63 +-X 33. +-15. 22.62 +-X 29.9 +-X 24.94 +-X 23. +-X 28.86 +-X 12.37 +-X 33.92 +-X 7.4 +-14. 39. +-X 5.9 +-X 51. +-X 8.2 +-X \END; /*===================================================================*/ |