ENTRY 40926 20191104 41844092600000001 SUBENT 40926001 20191104 41844092600100001 BIB 12 29 4092600100002 TITLE Isomeric cross-section ratio of Eu-151 for thermal, 4092600100003 2-keV, 55-keV and 144-keV neutrons. 4092600100004 AUTHOR (V.A.Pshenichnyy,E.A.Gritsay,N.L.Gnidak) 4092600100005 INSTITUTE (4UKRIJD) 4092600100006 REFERENCE ((J,YK,,(1),9,1986)= 4092600100007 (R,INDC(CCP)-259,9,1986)) 4092600100008 In Russian + abstract in English. 4092600100009 No Engl.translation of full paper as INDC-CCP- 4092600100010 at NDS web-site. 4092600100011 REL-REF (R,,,B,LEDERER-7,,,1978) Ref. for decay data. 4092600100012 FACILITY (REAC,4UKRIJD) Reactor WWR-M 4092600100013 DETECTOR (GELI) Ge(Li) gamma spectrometer. 4092600100014 Standard gamma-source of Eu-152-g was used to control 4092600100015 spectrometer using gamma-lines of 121.8 and 333.3 keV .4092600100016 SAMPLE Eu-151 enrichment is 97.5 % . 4092600100017 METHOD (ACTIV) Several irradiations, total time about 12 d . 4092600100018 CORRECTION For contribution of Eu-153 admixture ( additional 4092600100019 measurement by Eu-153 (99.1% enrichment) and Eu-151 4092600100020 ( 97.5% enrichment) samples. 4092600100021 For background 4092600100022 ERR-ANALYS (ERR-1) Error from neutron background 4092600100023 (ERR-2,,1.5) Uncertainty due to Er-153 admixture 4092600100024 correction for contribution of Eu-154 123.1 keV 4092600100025 gamma-line. 4092600100026 HISTORY (19870914C) Compiled at the CJD 4092600100027 (20150614A) M.M. Ref. was corrected. 4092600100028 The article was checked, BIB information was updated. 4092600100029 Subents 002-003 were re-compiled. 4092600100030 (20191104U) Ref YK was corrected . 4092600100031 ENDBIB 29 0 4092600100032 COMMON 1 3 4092600100033 ERR-1 4092600100034 PER-CENT 4092600100035 1.7 4092600100036 ENDCOMMON 3 0 4092600100037 ENDSUBENT 36 0 4092600199999 SUBENT 40926002 20191104 41844092600200001 BIB 8 38 4092600200002 REACTION (63-EU-151(N,G)63-EU-152-M1/T,,SIG/RAT) 4092600200003 INC-SPECT Thermal neutrons, scandium-filtered ( 2 keV) and 4092600200004 silicon-filtered ( 55keV, 144keV) neutrons 4092600200005 REL-REF (D,11748001,B.Keish,J,PR,129,769,1963) 4092600200006 Lower than 0.359+-0.016 of B.Keish. 4092600200007 (D,20221001,F.Poortmans+,J,NP/A,172,489,1971) 4092600200008 Lower than 0.352+-0.015 of F.Poortmans. 4092600200009 (D,12093001,W.E.Moore+,R,BNL-325,1966) 4092600200010 Lower than 0.35+-0.04 of W.Moore+ 4092600200011 (D,,Johnson,R,BNL-325,1966) 4092600200012 Lower than 0.32+-0.04 of Johnson . 4092600200013 (A,,V.A.Pshenichnyy+,C,82ANTWER,,230,1982) 4092600200014 Agree with previous measurement - 0.400+-0.020 4092600200015 Comparison for thermal neutrons. 4092600200016 ANALYSIS Ratios of absolute yields of gamma-lines for Eu-152m to4092600200017 Eu-152g: 4092600200018 E-gamma,keV Ratio Eu152m/Eu152g 4092600200019 121.8 0.2206+-0.0088 4092600200020 344.3 0.0787+-0.0043 4092600200021 841.7 / 867.4 2.903+-0.120 4092600200022 963.4 / 964. 0.738+-0.029 4092600200023 Isomeric ratio for thermal neutrons was defined by 4092600200024 these gamma-lines. 4092600200025 DECAY-DATA ((1.)63-EU-152-M1,9.3HR,DG,344.3) 4092600200026 ((1.)63-EU-152-G,13.17YR,DG,344.3) 4092600200027 ((2.)63-EU-152-M1,9.3HR,DG,121.8,,DG,344.3) 4092600200028 ((2.)63-EU-152-G,13.17YR,DG,121.8,,DG,344.3) 4092600200029 ERR-ANALYS (ERR-S) Statistical error 4092600200030 (DATA-ERR) Average deviation for several gamma-lines 4092600200031 measurements. 4092600200032 STATUS (TABLE) Text, page 11 of J,YK,,(1),9,1986. 4092600200033 Also Table of YK,,(1),9,1986 - thermal neutrons. 4092600200034 (SPSDD,41038002) The same data for En=0.0253 eV. 4092600200035 (SPSDD,41038004) The same data for En=2. keV. 4092600200036 (SPSDD,41038005) Revised data for En=55. keV. 4092600200037 (SPSDD,41038005) Revised data for En=144. keV. 4092600200038 HISTORY (20150614A) Data for EN=0.0253 eV and 2.0 keV were 4092600200039 deleted according to the comment of N.Otsuka(NDS,IAEA).4092600200040 ENDBIB 38 0 4092600200041 NOCOMMON 0 0 4092600200042 DATA 6 4 4092600200043 EN EN-RSL DATA DATA-ERR ERR-S DECAY-FLAG 4092600200044 EV EV NO-DIM NO-DIM NO-DIM NO-DIM 4092600200045 5.5 E+04 2.0 E+03 0.403 .007 2. 4092600200046 5.5 E+04 2.0 E+03 0.400 .010 1. 4092600200047 1.44 E+05 2.5 E+04 0.364 .004 2. 4092600200048 1.44 E+05 2.5 E+04 0.359 .007 1. 4092600200049 ENDDATA 6 0 4092600200050 ENDSUBENT 49 0 4092600299999 SUBENT 40926003 20191104 41844092600300001 BIB 6 11 4092600300002 REACTION (63-EU-151(N,G)63-EU-152-M1/T,,SIG/RAT,,EPI) 4092600300003 INC-SPECT Epicadmium neutron spectrum 4092600300004 DECAY-DATA ((1.)63-EU-152-M1,9.3HR,DG,344.3) 4092600300005 ((1.)63-EU-152-G,13.17YR,DG,344.3) 4092600300006 ERR-ANALYS (ERR-S) Statistical error 4092600300007 (DATA-ERR) Average deviation for four gamma-lines 4092600300008 measurements. 4092600300009 STATUS (TABLE) Text, page 11 of J,YK,,(1),9,1986. 4092600300010 (SPSDD,41038003) The same data for En of epicadmium 4092600300011 spectrum. 4092600300012 HISTORY (20191104A) SPA -> EPI in SF8 4092600300013 ENDBIB 11 0 4092600300014 NOCOMMON 0 0 4092600300015 DATA 5 2 4092600300016 EN-MIN DATA DATA-ERR ERR-S DECAY-FLAG 4092600300017 EV NO-DIM NO-DIM NO-DIM NO-DIM 4092600300018 0.5 0.398 .009 4092600300019 0.5 0.399 .004 1. 4092600300020 ENDDATA 4 0 4092600300021 ENDSUBENT 20 0 4092600399999 ENDENTRY 3 0 4092699999999