ENTRY 22174 20191116 22832217400000001 SUBENT 22174001 20191116 22832217400100001 BIB 16 52 2217400100002 TITLE Measurement of thermal neutron cross section of 2217400100003 137-Cs(n,gamma)138-Cs reaction 2217400100004 AUTHOR (H.Harada,H.Watanabe,T.Sekine,Y.Hatsukawa,K.Kobayashi, 2217400100005 T.Katoh) 2217400100006 REFERENCE (J,NST,27,577,1990) 2217400100007 (S,JAERI-M-91-032,199,1991) Same value given. 2217400100008 (C,91JUELIC,,57,1991) cr.sect.therm. 2217400100009 (J,NST,37,827,2000) Revised value given in Subent 004 2217400100010 INSTITUTE (2JPNPNC) H.H., H.W. 2217400100011 (2JPNJAE) T.S., Y.H., K.K. And Experimental Site 2217400100012 (2JPNNAG) T.K. 2217400100013 FACILITY (REAC,2JPNJAE) Swimming-Pool-Type JRR-4 Reactor 2217400100014 INC-SOURCE (REAC) 2217400100015 INC-SPECT .Sample irradiated in the T-pipe of the reactor, giving2217400100016 a thermal N-flux 4.0E+13 n/cm2/s and an epithermal 2217400100017 index in the Westcott convention of 0.02. 2217400100018 SAMPLE . 3.0 micro-l of CsCl solution containing 0.1 MBq of 2217400100019 137Cs evaporated to dryness in a small polyethylene 2217400100020 bottle, which was sealed and then placed in a poly- 2217400100021 ethylene capsule with a flux-monitor wire of 0.475 W/O2217400100022 Co/Al alloy 0.76 mm in diameter. 2217400100023 METHOD (ACTIV) Irradiation time 10 min 2217400100024 (CHSEP) Cs separated from 24Na and 38Cl activity by 2217400100025 absorbing it onto 2 mg of Zeolite and filtering off. 2217400100026 DETECTOR (HPGE) 2.3 keV energy resolution at 1.3 MeV. Counting 2217400100027 efficiency measured with a calibrated multi-gamma 2217400100028 source. 2217400100029 MONITOR (27-CO-59(N,G)27-CO-60,,SIG,,MXW) 2217400100030 DECAY-MON (27-CO-60-G,5.271YR,DG,1173.,1.0, 2217400100031 DG,1332.,1.0) 2217400100032 DECAY-DATA (55-CS-137,30.17YR,DG,662.,0.85) 2217400100033 (55-CS-138-G,33.4MIN,DG,1010.,0.284, 2217400100034 DG,1436.,0.750, 2217400100035 DG,2218.,0.161) 2217400100036 CORRECTION .Corrected for sum coincidence loss. 2217400100037 .Dead time correction not necessary because only ratio 2217400100038 of counts considered in analysis. 2217400100039 ERR-ANALYS (DATA-ERR) Does not include the errors in gamma 2217400100040 emission probabilities and decay constants. 2217400100041 (ERR-1) Uncertainties in detector counting efficiencies2217400100042 estimated to be 5%. 2217400100043 HISTORY (19910515C) S.W. 2217400100044 (19910716A) S.W. Half-Life Explanation Added, Data 2217400100045 Corrected in Subent 002 2217400100046 (20000503A) Corrected by S.M. Reference and Subentry 2217400100047 Added. Dates Corrected 2217400100048 (20060204A) Corrected SM. One reference and 2217400100049 SUBENT 22174003 deleted 2217400100050 (20180429A) SD; Ref. JAERI-M-91-032 added. ERR-1 added.2217400100051 Subent 004 added. 2217400100052 (20190919U) SD: Ref. NST,37,827 added.Correction in 0042217400100053 (20191116U) SD: Ref. 91JUELIC,,57,1991 added. 2217400100054 ENDBIB 52 0 2217400100055 COMMON 2 3 2217400100056 MONIT ERR-1 2217400100057 B PER-CENT 2217400100058 3.718E+01 5. 2217400100059 ENDCOMMON 3 0 2217400100060 ENDSUBENT 59 0 2217400199999 SUBENT 22174002 20180429 22702217400200001 BIB 5 16 2217400200002 REACTION (55-CS-137(N,G)55-CS-138,,SIG,,SPA) Averaged over 2217400200003 thermal and epithermal neutron spectrum 2217400200004 ANALYSIS .Cross section calculated from the intensity ratio of 2217400200005 each of the three 138Cs gammas to the 662 keV gamma 2217400200006 of 137Cs. Data is weighted mean of four runs, giving 2217400200007 12 cross sections. 2217400200008 INC-SPECT .Epithermal components contributes 2% 2217400200009 STATUS (TABLE) Data from the text of Nucl.Sci.Tech.27(1990)5772217400200010 (COREL,22737002) 2217400200011 (COREL,22649003) 2217400200012 (SPSDD,22174004) 2217400200013 HISTORY (19910515C) S.W. 2217400200014 (19910716A) S.W. Data Corrected 2217400200015 (20000503U) DATA-ERR Corrected 2217400200016 (20060204A) REACTION SF8 and Data-Err corrected 2217400200017 (20180429U) SD: STATUS 'SPSDD' added. 2217400200018 ENDBIB 16 0 2217400200019 NOCOMMON 0 0 2217400200020 DATA 3 1 2217400200021 EN-DUMMY DATA DATA-ERR 2217400200022 EV B B 2217400200023 2.53E-02 0.250 0.013 2217400200024 ENDDATA 3 0 2217400200025 ENDSUBENT 24 0 2217400299999 NOSUBENT 22174003 20060204 21762217400300001 SUBENT 22174004 20190919 22822217400400001 BIB 4 9 2217400400002 REACTION (55-CS-137(N,G)55-CS-138,,SIG,,SPA) 2217400400003 revised effective cross section 2217400400004 COMMENT Revised data taking into account the 138Cs metastable 2217400400005 production properly 2217400400006 STATUS (TABLE) text on p.830 of Nucl.Sci.Tech.,37(200)827 2217400400007 (COREL,22737004) 0.4 MBq sample irradiated at JRR-4 2217400400008 (COREL,22649003) 0.37 MBq sample irradiated at KUR 2217400400009 HISTORY (20180429C) SD 2217400400010 (20190919U) SD: Free text to STATUS added. 2217400400011 ENDBIB 9 0 2217400400012 NOCOMMON 0 0 2217400400013 DATA 3 1 2217400400014 EN-DUMMY DATA DATA-ERR 2217400400015 EV B B 2217400400016 2.53E-02 0.29 0.02 2217400400017 ENDDATA 3 0 2217400400018 ENDSUBENT 17 0 2217400499999 ENDENTRY 4 0 2217499999999