ENTRY 23778 20220208 23082377800000001 SUBENT 23778001 20220208 23082377800100001 BIB 13 30 2377800100002 TITLE Determination of the 209Bi(n,gamma)210gBi cross section2377800100003 using the NICE detector 2377800100004 AUTHOR (K.Al-Khasawneh, E.Borris, B.Brueckner, P.Erbacher, 2377800100005 S.Fiebiger, K.Goebel, T.Heftrich, T.Kisselbach, 2377800100006 D.Kurtulgil, C.Langer, M.Reich, R.Reifarth, B.Thomas, 2377800100007 M.Volknandt, M.Weigand, K.Eberhardt, R.Gernhaeuser) 2377800100008 INSTITUTE (2GERFRK,2GERMNZ,2GERMUN) 2377800100009 REFERENCE (J,PR/C,103,065805,2021) 2377800100010 #doi:10.1103/PhysRevC.103.065805 2377800100011 SAMPLE (83-BI-209,ENR=0.9997) Three Bi samples, each composed 2377800100012 of thin layer of 209Bi sputtered on polystyrene backing2377800100013 with thicknesses of (5.35 +- 0.24), (5.42 +- 0.35) and 2377800100014 (5.32 +- 0.31) um, respectively. 2377800100015 DETECTOR (SCIN) The NICE detector is composed of a 2377800100016 scintillator, which 26 x 7 cm2 surface area and 0.1 mm 2377800100017 thickness, coupled to two photomultiplier tubes at 2377800100018 one face of the scintillator foil. Time coincidence 2377800100019 technique using both PMTs was adopted with a 50 ns 2377800100020 coincidence window. 2377800100021 METHOD (ACTIV) 2377800100022 (ASPEC) 2377800100023 DECAY-DATA (83-BI-210-G,5.03D) 2377800100024 (84-PO-210,138.D,A,5304.33,1.) 2377800100025 RAD-DET (84-PO-210,A) 2377800100026 ANALYSIS (DECAY) Several consecutive measurement of the 210Po 2377800100027 activity carried out after the complete decay of 210Bi.2377800100028 ERR-ANALYS (ERR-S) Uncertainty due to the counting statistics. 2377800100029 (ERR-SYS) Systematic uncertainty. 2377800100030 STATUS (APRVD) Approved by K.Al-Khasawneh, 16 February 2022. 2377800100031 HISTORY (20220208C) VS. 2377800100032 ENDBIB 30 0 2377800100033 NOCOMMON 0 0 2377800100034 ENDSUBENT 33 0 2377800199999 SUBENT 23778002 20220208 23082377800200001 BIB 6 11 2377800200002 REACTION (83-BI-209(N,G)83-BI-210-G,,SIG) 2377800200003 FACILITY (REAC,2GERMUN) TRIGA research reactor 2377800200004 INC-SOURCE (REAC) 2377800200005 ASSUMED (ASSUM1,79-AU-197(N,G)79-AU-198,,SIG) Thermal C.S. 2377800200006 (ASSUM2,79-AU-197(N,G)79-AU-198,,RI) 2377800200007 (ASSUM3,21-SC-45(N,G)21-SC-46,,SIG) Thermal C.S. 2377800200008 (ASSUM4,21-SC-45(N,G)21-SC-46,,RI) 2377800200009 REL-REF (R,,M.B.Chadwick+,J,NDS,112,2887,2011) 2377800200010 Thermal cross sections from ENDF/B-VII.1. 2377800200011 STATUS (TABLE) Text on page 065805-5 of 2377800200012 Phys.Rev.C103(2021)065805. 2377800200013 ENDBIB 11 0 2377800200014 COMMON 4 3 2377800200015 ASSUM1 ASSUM2 ASSUM3 ASSUM4 2377800200016 B B B B 2377800200017 98.7 1571. 27.2 12.06 2377800200018 ENDCOMMON 3 0 2377800200019 DATA 4 1 2377800200020 EN DATA ERR-S ERR-SYS 2377800200021 EV MB MB MB 2377800200022 0.0253 16.20 0.12 0.85 2377800200023 ENDDATA 3 0 2377800200024 ENDSUBENT 23 0 2377800299999 SUBENT 23778003 20220208 23082377800300001 BIB 6 11 2377800300002 REACTION (83-BI-209(N,G)83-BI-210-G,,RI) 2377800300003 FACILITY (REAC,2GERMUN) TRIGA research reactor 2377800300004 INC-SOURCE (REAC) 2377800300005 ASSUMED (ASSUM1,79-AU-197(N,G)79-AU-198,,SIG) Thermal C.S. 2377800300006 (ASSUM2,79-AU-197(N,G)79-AU-198,,RI) 2377800300007 (ASSUM3,21-SC-45(N,G)21-SC-46,,SIG) Thermal C.S. 2377800300008 (ASSUM4,21-SC-45(N,G)21-SC-46,,RI) 2377800300009 REL-REF (R,,M.B.Chadwick+,J,NDS,112,2887,2011) 2377800300010 Thermal cross sections from ENDF/B-VII.1. 2377800300011 STATUS (TABLE) Text on page 065805-5 of 2377800300012 Phys.Rev.C103(2021)065805. 2377800300013 ENDBIB 11 0 2377800300014 COMMON 4 3 2377800300015 ASSUM1 ASSUM2 ASSUM3 ASSUM4 2377800300016 B B B B 2377800300017 98.7 1571. 27.2 12.06 2377800300018 ENDCOMMON 3 0 2377800300019 DATA 4 1 2377800300020 EN-MIN DATA ERR-S ERR-SYS 2377800300021 EV MB MB MB 2377800300022 0.55 89.81 1.07 6.93 2377800300023 ENDDATA 3 0 2377800300024 ENDSUBENT 23 0 2377800399999 SUBENT 23778004 20220208 23082377800400001 BIB 8 14 2377800400002 REACTION (83-BI-209(N,G)83-BI-210-G,,SIG,,SPA) 2377800400003 MONITOR (79-AU-197(N,G)79-AU-198,,SIG,,SPA) 2377800400004 FACILITY (VDG,2GERFRK) 2377800400005 INC-SOURCE (P-LI7) A lithium layer with a thickness of (9.0 +- 2377800400006 0.2) um and 1912 keV proton energy. 2377800400007 INC-SPECT The angle-integrated neutron energy spectrum is a 2377800400008 good approximation of a Maxwell-Boltzmann 2377800400009 distribution at kT = 25 keV. 2377800400010 REL-REF (R,,R.Reifarth+,J,NIM/A,608,139,2009) 2377800400011 7Li(p,n) at Ep = 1912 keV quasi-Maxwellian spectrum 2377800400012 at kT = 25 keV, calculated using PINO simulation code. 2377800400013 METHOD (STTA) Two thin gold foils were used as flux monitors. 2377800400014 STATUS (TABLE) Text on page 065805-8 of 2377800400015 Phys.Rev.C103(2021)065805. 2377800400016 ENDBIB 14 0 2377800400017 COMMON 1 3 2377800400018 KT-DUMMY 2377800400019 KEV 2377800400020 25. 2377800400021 ENDCOMMON 3 0 2377800400022 DATA 5 1 2377800400023 DATA ERR-S ERR-SYS MONIT MONIT-ERR 2377800400024 MB MB MB MB MB 2377800400025 1.83 0.20 0.15 0.651 0.006 2377800400026 ENDDATA 3 0 2377800400027 ENDSUBENT 26 0 2377800499999 SUBENT 23778005 20220208 23082377800500001 BIB 5 16 2377800500002 REACTION (83-BI-209(N,G)83-BI-210-G,,SIG,,MXW,DERIV) 2377800500003 ANALYSIS MACS(derived) = SACS(exp)*(MACS(calc)/SACS(calc)), 2377800500004 where MACS(calc) and SACS(calc) are calculated cross 2377800500005 sections using ENDF/B-VIII.0 209Bi(n,g) cross section 2377800500006 and Maxwell-Boltzmann distribution and experimental 2377800500007 neutron distribution using PINO simulation code, 2377800500008 respectively. 2377800500009 REL-REF (R,,R.Reifarth+,J,NIM/A,608,139,2009) 2377800500010 7Li(p,n) at Ep = 1912 keV quasi-Maxwellian spectrum 2377800500011 at kT = 25 keV, calculated using PINO simulation code. 2377800500012 (R,,D.A.Brown+,J,NDS,148,1,2018) 2377800500013 209Bi(n,g) ENDF/B-VIII.0 evaluation. 2377800500014 ERR-ANALYS The systematic and statistical uncertainties are equal 2377800500015 to those obtained from the measurement. 2377800500016 STATUS (DEP,23778004) 209Bi(n,g) MACS at kt=25 keV. 2377800500017 (TABLE) Table VII of Phys.Rev.C103(2021)065805. 2377800500018 ENDBIB 16 0 2377800500019 NOCOMMON 0 0 2377800500020 DATA 4 1 2377800500021 KT DATA ERR-S ERR-SYS 2377800500022 KEV MB MB MB 2377800500023 25. 2.12 0.23 0.17 2377800500024 ENDDATA 3 0 2377800500025 ENDSUBENT 24 0 2377800599999 ENDENTRY 5 0 2377899999999