ENTRY 22737 20191116 228322737 0 1 SUBENT 22737001 20191116 228322737 1 1 BIB 15 59 22737 1 2 TITLE Measurement of thermal neutron cross section and 22737 1 3 resonance integral of the reaction 22737 1 4 137-Cs(n,gamma)138-Cs 22737 1 5 AUTHOR (T.Sekine,Y.Hatsukawa,Katsutoshi Kobayashi,H.Harada, 22737 1 6 H.Watanabe,T.Katoh) 22737 1 7 INSTITUTE (2JPNJAE) T.Sekine, Y.Hatsukawa, K.Kobayashi - Dept. 22737 1 8 of Radioisotopes 22737 1 9 (2JPNPNC) H.Harada, H.Watanabe - Nucl. Fuel Techn. 22737 1 10 Development Division 22737 1 11 (2JPNNAG) T.Katoh - Dept. of Nucl. Engineering 22737 1 12 REFERENCE (J,NST,30,1099,1993) Main reference, data and 22737 1 13 experimental details 22737 1 14 (J,NST,37,827,2000) Revised value given 22737 1 15 ((S,JAERI-M-91-032,199,1991)= 22737 1 16 (S,NEANDC(J)-160,199,1991)= 22737 1 17 (S,INDC(JPN)-148,199,1991)) - first present. on Conf. 22737 1 18 (C,91JUELIC,,57,1991) (final sig0,RI) 22737 1 19 FACILITY (REAC,2JPNJAE) JRR-4 swimming pool reactor 22737 1 20 INC-SOURCE (REAC) 22737 1 21 INC-SPECT .Epithermal neutron spectrum variates according to 22737 1 22 1/E law 22737 1 23 DETECTOR (HPGE) 90% efficiency relative to 3" times 3" NaI(Tl) 22737 1 24 detector, 2.3 keV resolution at 1.3 MeV gamma energy 22737 1 25 - for Cs-137/Cs-138 measurement. 22737 1 26 Monitor samples Co-60 and Au-198 were measured with 22737 1 27 another HPGE detector, 24% efficiency and 2.0 keV 22737 1 28 resolution at 1.3 MeV 22737 1 29 ASSUMED (ASSUM1,27-CO-59(N,G)27-CO-60,,SIG) 22737 1 30 (ASSUM2,79-AU-197(N,G)79-AU-198,,SIG) 22737 1 31 METHOD (ACTIV) 22737 1 32 (CADMB) Modified cadmium ratio method. Irradiation 22737 1 33 produced with (10 min) and without (2 min for Run 1, 22737 1 34 10 min for Run 2) cadmium shield 22737 1 35 (STTA) Simultaneous irradiation of sample and 22737 1 36 monitor wires 22737 1 37 (CHSEP) 22737 1 38 SAMPLE .0.4 MBq of Cs-137 was used as a sample contained in 22737 1 39 a 0.003 liters of Ca-Cl solution which was then 22737 1 40 evaporated to dryness and deposited at the bottom 22737 1 41 of the bottle as a thin disk 7 mm diam. and less than 22737 1 42 0.5 mm thick. Accurate number of Cs-137 atoms was 22737 1 43 determined relative to Cs-138 product atoms about 22737 1 44 30 min after irradiation 22737 1 45 .Monitor samples were 0.475% Co/Al and 0.061% Au/Al 22737 1 46 alloys wires 0.76 and 0.51 mm diameter, 3 mm long 22737 1 47 sticked on the outside of the sample bottle. 22737 1 48 DECAY-DATA (55-CS-137,30.17YR,DG,662.,0.85) 22737 1 49 (55-CS-138-G,33.4MIN,DG,1436.,0.750) 22737 1 50 CORRECTION Corrections for self-absorption of gammas in sample 22737 1 51 ERR-ANALYS (DATA-ERR) Sum error of counting efficiency, error of 22737 1 52 the neutron flux determination and statistical error 22737 1 53 (ERR-1) Error of the counting efficiency at the 22737 1 54 67% confidence level 22737 1 55 HISTORY (20060203C) + + SM 22737 1 56 (20180429A) Ref. on JAERI-M-91-032 was added. 22737 1 57 Subent 004 added. 22737 1 58 (20190830A) SD:ref. added. Small corrections in Subents22737 1 59 MONITOR -> ASSUMED. Ref.NST,37,827,2000 added. 22737 1 60 (20191116U) SD: Ref. 91JUELIC,,57,1991 added. 22737 1 61 ENDBIB 59 0 22737 1 62 COMMON 3 3 22737 1 63 MONIT1 MONIT2 ERR-1 22737 1 64 B B PER-CENT 22737 1 65 37.2 98.8 3.0 22737 1 66 ENDCOMMON 3 0 22737 1 67 ENDSUBENT 66 0 22737 199999 SUBENT 22737002 20180429 227022737 2 1 BIB 4 9 22737 2 2 REACTION (55-CS-137(N,G)55-CS-138,,SIG) 22737 2 3 REL-REF (A,22174002,H.Harada+,J,NST,27,577,1990) First 22737 2 4 measurement of the 137-Cs(n,gamma) sigma without 22737 2 5 Cd filter 22737 2 6 (D,12021002,D.C.Stupegia,J,JNE/A,12,16,1960) 22737 2 7 STATUS (TABLE) From table 4 of Nucl.Sci.Tech.30(1993)1099 22737 2 8 (COREL,22174002) 22737 2 9 (SPSDD,22737004) 22737 2 10 HISTORY (20180429U) SD: STATUS 'SPSDD' updated. 22737 2 11 ENDBIB 9 0 22737 2 12 NOCOMMON 0 0 22737 2 13 DATA 3 1 22737 2 14 EN DATA DATA-ERR 22737 2 15 EV B B 22737 2 16 2.53E-02 0.253 0.022 22737 2 17 ENDDATA 3 0 22737 2 18 ENDSUBENT 17 0 22737 299999 SUBENT 22737003 20190830 228222737 3 1 BIB 3 3 22737 3 2 REACTION (55-CS-137(N,G)55-CS-138,,RI) 22737 3 3 STATUS (TABLE) From table 6 of Nucl.Sci.Tech.,30(1993)1099 22737 3 4 HISTORY (20190830U) SD: STATUS updated. 22737 3 5 ENDBIB 3 0 22737 3 6 NOCOMMON 0 0 22737 3 7 DATA 3 1 22737 3 8 EN-MIN DATA DATA-ERR 22737 3 9 EV B B 22737 3 10 0.5 0.36 0.07 22737 3 11 ENDDATA 3 0 22737 3 12 ENDSUBENT 11 0 22737 399999 SUBENT 22737004 20190830 228222737 4 1 BIB 4 9 22737 4 2 REACTION (55-CS-137(N,G)55-CS-138,,SIG,,SPA) 22737 4 3 revised effective cross section 22737 4 4 COMMENT Revised data taking into account the 138Cs metastable 22737 4 5 production properly 22737 4 6 STATUS (TABLE) text on p.830 of Nucl.Sci.Tech.,37(200)827 22737 4 7 (COREL,22174004) 0.1 MBq sample irradiated at JRR-4 22737 4 8 (COREL,22649003) 0.37 MBq sample irradiated at KUR 22737 4 9 HISTORY (20180429C) SD 22737 4 10 (20190830U) SD: STATUS updated. 22737 4 11 ENDBIB 9 0 22737 4 12 NOCOMMON 0 0 22737 4 13 DATA 3 1 22737 4 14 EN-DUMMY DATA DATA-ERR 22737 4 15 EV B B 22737 4 16 2.53E-02 0.29 0.02 22737 4 17 ENDDATA 3 0 22737 4 18 ENDSUBENT 17 0 22737 499999 ENDENTRY 4 0 2273799999999