ENTRY 41594 20131218 41624159400000001 SUBENT 41594001 20131218 41624159400100001 BIB 13 24 4159400100002 INSTITUTE (4RUSNIR) 4159400100003 REFERENCE (C,80KIEV,2,136,1980) 4159400100004 AUTHOR (V.A.Anufriev,V.A.Goncharov,S.I.Babich,V.N.Nefedov) 4159400100005 TITLE Neutron resonances of nucleus Ce-141 (T1/2=32.5days). 4159400100006 FACILITY (REAC,4RUSNIR) SM-2 reactor. 4159400100007 INC-SOURCE (REAC) Fluence 3.2E+21 n/cm**2 . 4159400100008 SAMPLE Plate 1.3 x 8 x 27 mm**3 was irradiated in SM-2 4159400100009 reactor by fluence 3.2E+21 n/cm**2; initial content: 4159400100010 Ce-140 96.4%, Ce-142 4.6%, main admixture - natural Sm.4159400100011 Additional sample of about 5.E-2 mg Ce-140 was 4159400100012 irradiated together with main sample and was used to 4159400100013 analyze Ce-141 content in irradiated samples by gamma 4159400100014 spectrometry (145 keV gamma line). 4159400100015 DECAY-DATA (58-CE-141,32.5D,DG,145.) 4159400100016 DETECTOR (SPEC) Neutron spectrometer. 4159400100017 METHOD (TOF,TRN) 92 m TOF base. Best resolution 58 ns/m . 4159400100018 Background was less 2.% . 4159400100019 Transmission was measured by initial sample and 4159400100020 then by irradiated sample. 4159400100021 ADD-RES Measured energy dependence of Ce-141 total c-s is 4159400100022 mentioned, but not presented in the article. 4159400100023 ERR-ANALYS (ERR-S,,1.5) Statistical uncertainty of transmission 4159400100024 measurement. 4159400100025 HISTORY (20131218C) M.M. 4159400100026 ENDBIB 24 0 4159400100027 NOCOMMON 0 0 4159400100028 ENDSUBENT 27 0 4159400199999 SUBENT 41594002 20131218 41624159400200001 BIB 5 9 4159400200002 REACTION 1(58-CE-141(N,0),,EN) 4159400200003 2(58-CE-141(N,EL),,WID,,2G) 2g*Gn0 4159400200004 ANALYSIS (AREA) 4159400200005 ASSUMED (ASSUM,58-CE-141(N,G),,WID) 4159400200006 ADD-RES Neutron resonances at 11.1, 64.8 and 131.7 eV were also4159400200007 observed; they could be probably weak levels of Ce-140.4159400200008 Resonances 64.8 and 131.7 eV could be levels of Ce-136,4159400200009 but Ce-136 is not given in certificate of sample. 4159400200010 STATUS (TABLE) Table of C,80KIEV,2,136,1980. 4159400200011 ENDBIB 9 0 4159400200012 COMMON 1 3 4159400200013 ASSUM 4159400200014 MILLI-EV 4159400200015 100. 4159400200016 ENDCOMMON 3 0 4159400200017 DATA 3 6 4159400200018 DATA 1DATA 2DATA-ERR 2 4159400200019 EV MILLI-EV MILLI-EV 4159400200020 7.40 0.42 0.07 4159400200021 20.00 2.05 0.70 4159400200022 24.06 2.2 0.7 4159400200023 79.1 16. 8. 4159400200024 292.0 7. 4159400200025 335.0 47. 4159400200026 ENDDATA 8 0 4159400200027 ENDSUBENT 26 0 4159400299999 SUBENT 41594003 20131218 41624159400300001 BIB 4 8 4159400300002 REACTION (58-CE-141(N,TOT),,SIG,,SPA) 4159400300003 Effective cross-section averaged on SM-2 reactor 4159400300004 channel spectrum. 4159400300005 REL-REF (A,12056004,P.M.Lants+,J,NSE,20,302,1964) 4159400300006 METHOD (ACTIV) Samples were irradiated in SM-2 reactor channel4159400300007 together with Co sample (about 0.5 microg Co-59) which 4159400300008 was used for neutron beam monitoring. 4159400300009 STATUS (TABLE) Text, page 138 of C,80KIEV,2,136,1980. 4159400300010 ENDBIB 8 0 4159400300011 NOCOMMON 0 0 4159400300012 DATA 3 1 4159400300013 EN-DUMMY DATA DATA-ERR 4159400300014 EV B B 4159400300015 0.0253 30. 20. 4159400300016 ENDDATA 3 0 4159400300017 ENDSUBENT 16 0 4159400399999 ENDENTRY 3 0 4159499999999