ENTRY 32536 20240216 3253600000001 SUBENT 32536001 20240216 20240513 3253600100001 BIB 15 32 3253600100002 TITLE Measurement of Maxwellian averaged neutron capture 3253600100003 cross section of 140,142Ce, 139La and 181Ta at 3253600100004 kT=24 keV 3253600100005 AUTHOR (Xia Yijun, Wang Chunhao, Yang Jinfu, Yang Zhihua, 3253600100006 Liu Mantian) 3253600100007 INSTITUTE (3CPRSIU) 3253600100008 REFERENCE (J,CNP,12,261,1990) 3253600100009 FACILITY (VDG,3CPRSIU) Pulsed 2.5 MeV Van de Graaff 3253600100010 INC-SOURCE (P-LI7) proton energy of 25 keV above 7Li(p,n)7Be 3253600100011 treshold 3253600100012 SAMPLE Sample sandwiched between two Au foils (0.163 g/cm2, 3253600100013 0.1 mm thick and 10 mm in diameter) 3253600100014 METHOD (ACTIV) 3253600100015 DETECTOR (HPGE) for gamma detection 3253600100016 (GLASD) 6Li glass detector for neutron spectrum 3253600100017 measurement 3253600100018 INC-SPECT Maxwellian spectrum with average energy of 24 keV 3253600100019 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 3253600100020 MONIT-REF (,Jiang Songsheng+,R,HSJ-77141,197805) 3253600100021 ERR-ANALYS (ERR-T) Total uncertainty contributed by 3253600100022 (MONIT-ERR) standard cross section (3.5%) 3253600100023 (ERR-1) gamma detector efficiency (4%) 3253600100024 (ERR-2,0.95,8.) decay scheme (0.95-8%) 3253600100025 (ERR-3,0.5,3.) gamma self-absorption (0.5-3%) 3253600100026 (ERR-4,,1.) counting statistics (<1%) 3253600100027 (ERR-5) irradiation history (1%) 3253600100028 (ERR-6,,1.) deviation from Maxwellian (<1%) 3253600100029 STATUS (TABLE,,Xia Yijun+,J,CNP,12,261,1990) Table 3 3253600100030 HISTORY (19910612C) Compiled by authors, corrected and checked 3253600100031 by Liang Qichang and Yu Hongwei 3253600100032 (20100328U) SD: Cosmetic changes and corrections 3253600100033 (20240216U) On. REFERENCE(CNP): Issue number deleted. 3253600100034 ENDBIB 32 0 3253600100035 COMMON 5 3 3253600100036 KT MONIT MONIT-ERR ERR-1 ERR-5 3253600100037 KEV MB MB PER-CENT PER-CENT 3253600100038 24. 655. 23. 4. 1. 3253600100039 ENDCOMMON 3 0 3253600100040 ENDSUBENT 39 0 3253600199999 SUBENT 32536002 20100328 31473253600200001 BIB 2 3 3253600200002 REACTION (58-CE-140(N,G)58-CE-141,,SIG,,MXW) 3253600200003 SAMPLE CeO2 (99.9%, purity) disk of 0.629 g/cm2 thickness and 3253600200004 10mm in diam. was used. 3253600200005 ENDBIB 3 0 3253600200006 NOCOMMON 0 0 3253600200007 DATA 2 1 3253600200008 DATA ERR-T 3253600200009 MB MB 3253600200010 15.33 1.0 3253600200011 ENDDATA 3 0 3253600200012 ENDSUBENT 11 0 3253600299999 SUBENT 32536003 20100328 31473253600300001 BIB 2 3 3253600300002 REACTION (58-CE-142(N,G)58-CE-143,,SIG,,MXW) 3253600300003 SAMPLE CeO2 (99.9%, purity) disk of 0.629 g/cm2 thickness and 3253600300004 10mm in diam. was used. 3253600300005 ENDBIB 3 0 3253600300006 NOCOMMON 0 0 3253600300007 DATA 2 1 3253600300008 DATA ERR-T 3253600300009 MB MB 3253600300010 35.81 2.0 3253600300011 ENDDATA 3 0 3253600300012 ENDSUBENT 11 0 3253600399999 SUBENT 32536004 20100328 31473253600400001 BIB 2 3 3253600400002 REACTION (57-LA-139(N,G)57-LA-140,,SIG,,MXW) 3253600400003 SAMPLE La2O2 (99.9%, purity) disk of 0.609 g/cm2 thickness 3253600400004 and 10 mm in diam. was used. 3253600400005 ENDBIB 3 0 3253600400006 NOCOMMON 0 0 3253600400007 DATA 2 1 3253600400008 DATA ERR-T 3253600400009 MB MB 3253600400010 32.78 3.1 3253600400011 ENDDATA 3 0 3253600400012 ENDSUBENT 11 0 3253600499999 SUBENT 32536005 20100328 31473253600500001 BIB 2 3 3253600500002 REACTION (73-TA-181(N,G)73-TA-182,,SIG,,MXW) 3253600500003 SAMPLE Ta disk of 0.327 g/cm2 thickness 3253600500004 and 10 mm in diam. was used. 3253600500005 ENDBIB 3 0 3253600500006 NOCOMMON 0 0 3253600500007 DATA 2 1 3253600500008 DATA ERR-T 3253600500009 MB MB 3253600500010 890. 51. 3253600500011 ENDDATA 3 0 3253600500012 ENDSUBENT 11 0 3253600599999 ENDENTRY 5 0 3253699999999