ENTRY 23377 20180724 226923377 0 1 SUBENT 23377001 20180716 226923377 1 1 BIB 14 38 23377 1 2 AUTHOR (A.Letourneau, E.berthoumieux, O.Deruelle, M.Fadil, 23377 1 3 G.Fioni, F.Gunsing, F.Marie, L.Perrot, D.Ridikas, 23377 1 4 H.Boerner, H.Faust, P.Muttu, G.Simpson,P.Schillebeeckx)23377 1 5 TITLE Thermal neutron capture branching ratio of 209Bi using 23377 1 6 a gamma-ray technique 23377 1 7 REFERENCE (C,2002PRUHON,,734,2002) 23377 1 8 INSTITUTE (2FR SAC) A.Letourneau, E.berthoumieux, O.Deruelle, 23377 1 9 M.Fadil,G.Fioni,F.Gunsing,F.Marie,L.Perrot,D.Ridikas 23377 1 10 (2FR ILL) H.Boerner, H.Faust, P.Muttu, G.Simpson 23377 1 11 (2ZZZGEL) P.Schillebeeckx 23377 1 12 FACILITY (REAC,2FR ILL) High neutron flux reactor 23377 1 13 INC-SOURCE (REAC) Ultra-cold beam facility 23377 1 14 INC-SPECT Pure thermal neutron flux of Maxwellian distribution 23377 1 15 with a mean temperature 30 deg K, collimated to 2 mm or23377 1 16 3.8 mm diameter by 5mm-thick B4C apertures. 23377 1 17 SAMPLE 80 mm diameter, 99.99 % of 209Bi, 2 mm thickness, 23377 1 18 87.795 g weight sample was places 1 m upstream of the 23377 1 19 collimator. 23377 1 20 The sample was oriented at 45 deg relative to the 23377 1 21 incident neutron beam axis. 23377 1 22 NaCl sample enclosed in 0.4 mm thick, 90 mm diameter Al23377 1 23 container, was used for absolute normalization via 23377 1 24 Cl-35(n,gamma)Cl-36 reaction. 23377 1 25 METHOD (GSPEC) On-line gamma-ray spectroscopy . 23377 1 26 Energy spectra were measured during 8 hr ( low neutron23377 1 27 beam intensity 2.E+6 n/cm2/sec)and 17 hr (high neutron 23377 1 28 beam intensity 1.E+9 n/cm2/sec) 23377 1 29 DETECTOR (GE) 60 % efficiency Ge detector of EUROBALL with BGO- 23377 1 30 anticompton shielding. Placed at 51 cm from the center 23377 1 31 of the target. Calibrated by standard 152Eu source and 23377 1 32 Cl-35(n,gamma)Cl-36 reaction at the energy range 23377 1 33 100-8578 keV . 23377 1 34 CORRECTION Self-attenuation in Bi target was measured as a 23377 1 35 function of gamma-energy with a set of Ag and Bi-9%Ag 23377 1 36 targets. 23377 1 37 ERR-ANALYS No information. 23377 1 38 STATUS (PRELM) 23377 1 39 HISTORY (20180724C) M.M. 23377 1 40 ENDBIB 38 0 23377 1 41 NOCOMMON 0 0 23377 1 42 ENDSUBENT 41 0 23377 199999 SUBENT 23377002 20180724 226923377 2 1 BIB 4 6 23377 2 2 REACTION (83-BI-209(N,G)83-BI-210,,SIG,,MXW) 23377 2 3 DECAY-DATA (83-BI-210-M,3.04E+6YR) 23377 2 4 ERR-ANALYS (DATA-ERR) Mainly related to systematic errors as 23377 2 5 effective thickness of Bi and normalization samples. 23377 2 6 STATUS (TABLE) Text of Abstract in Conf.Proc. 23377 2 7 2002PRUHON,,734,2002 23377 2 8 ENDBIB 6 0 23377 2 9 COMMON 1 3 23377 2 10 EN-DUMMY 23377 2 11 EV 23377 2 12 0.0253 23377 2 13 ENDCOMMON 3 0 23377 2 14 DATA 2 1 23377 2 15 DATA DATA-ERR 23377 2 16 MB MB 23377 2 17 35. 1.75 23377 2 18 ENDDATA 3 0 23377 2 19 ENDSUBENT 18 0 23377 299999 SUBENT 23377003 20180724 226923377 3 1 BIB 4 6 23377 3 2 REACTION (83-BI-209(N,G)83-BI-210-G/M,,SIG/RAT,,MXW) 23377 3 3 DECAY-DATA (83-BI-210-M,3.04E+6YR) 23377 3 4 ERR-ANALYS (DATA-ERR) Main uncertainties from efficiency, 23377 3 5 self-attenuation, internal conversion correction. 23377 3 6 STATUS (TABLE) Text of Abstract in Conf.Proc. 23377 3 7 2002PRUHON,,734,2002 23377 3 8 ENDBIB 6 0 23377 3 9 COMMON 1 3 23377 3 10 EN-DUMMY 23377 3 11 EV 23377 3 12 0.0253 23377 3 13 ENDCOMMON 3 0 23377 3 14 DATA 2 1 23377 3 15 DATA DATA-ERR 23377 3 16 NO-DIM NO-DIM 23377 3 17 0.51 0.05 23377 3 18 ENDDATA 3 0 23377 3 19 ENDSUBENT 18 0 23377 399999 SUBENT 23377004 20180724 226923377 4 1 BIB 4 10 23377 4 2 REACTION 1(83-BI-209(N,G)83-BI-210-G,,SIG,,MXW,DERIV) 23377 4 3 2(83-BI-209(N,G)83-BI-210-M,,SIG,,MXW,DERIV) 23377 4 4 ANALYSIS Deduced form directly measured total capture CS and 23377 4 5 measured branching ratio. 23377 4 6 ERR-ANALYS (DATA-ERR) Mainly related to systematic errors as 23377 4 7 effective thickness of Bi and normalization samples. 23377 4 8 STATUS (TABLE) Text of Abstract in Conf.Proc. 23377 4 9 2002PRUHON,,734,2002 23377 4 10 (DEP,23377002) Measured CS 23377 4 11 (DEP,23377003) Measured branching ratio 23377 4 12 ENDBIB 10 0 23377 4 13 COMMON 1 3 23377 4 14 EN-DUMMY 23377 4 15 EV 23377 4 16 0.0253 23377 4 17 ENDCOMMON 3 0 23377 4 18 DATA 4 1 23377 4 19 DATA 1DATA-ERR 1DATA 2DATA-ERR 2 23377 4 20 MB MB MB MB 23377 4 21 17.9 2. 17.1 2. 23377 4 22 ENDDATA 3 0 23377 4 23 ENDSUBENT 22 0 23377 499999 ENDENTRY 4 0 2337799999999