ENTRY 32536 20100328 31473253600000001 SUBENT 32536001 20100328 31473253600100001 BIB 15 36 3253600100002 TITLE Measurement of Maxwellian averaged neutron capture 3253600100003 cross section of Ce-140,Ce-142,La-139 and Ta-181 3253600100004 at kT=24 keV 3253600100005 INSTITUTE (3CPRSIU) 3253600100006 REFERENCE (J,CNP,12,(3),261,199008) 3253600100007 AUTHOR (Xia Yijun,Wang Chunhao,Yang Jinfu,Yang Zhihua, 3253600100008 Liu Mantian) 3253600100009 FACILITY (VDG,3CPRSIU) Pulsed 2.5MeV Van-De-Graaff 3253600100010 METHOD (ACTIV) 3253600100011 DETECTOR (HPGE) High purity Germanium detector for gamma detec- 3253600100012 tion, neutron spectrum measured by Li-6 glass detector 3253600100013 INC-SOURCE (P-LI7) 3253600100014 INC-SPECT Maxwellian spectrum neutrons produced by (p-Li7) 3253600100015 neutron source,in which the proton energy is 25 keV 3253600100016 above the Li-7(p,n)Be-7 reaction threshold,the average 3253600100017 energy of neutron spectrum is 24 keV 3253600100018 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 3253600100019 MONIT-REF (,Jiang Songsheng+,R,HSJ-77141,197805) 3253600100020 ERR-ANALYS (ERR-T) Total uncertainty contributed by (in %) 3253600100021 (MONIT-ERR) standard cross section 3.5. 3253600100022 (ERR-1) gamma detector efficiency 4.0. 3253600100023 (ERR-2,0.95,8.) decay scheme 0.95-8.0. 3253600100024 (ERR-3,0.5,3.) gamma self-absorption 0.5-3.0. 3253600100025 (ERR-4,,1.) counting statistics <1. 3253600100026 (ERR-5) irradiation history 1. 3253600100027 (ERR-6,,1.) deviation of fluence distribution from 3253600100028 Maxwellian spectrum <1. 3253600100029 SAMPLE Sample is sandwiched between two gold foils of 0.1 mm 3253600100030 thick. Gold metal disks of 0.163 g/cm2 thickness and 3253600100031 10mm in diam. were used. 3253600100032 STATUS (TABLE) Data taken from Table 3 of Journal of Chinese 3253600100033 Nuclear Physics,12,(3),261,1990 3253600100034 HISTORY (19910612C)Compiled by authors,corrected and checked by3253600100035 Liang Qichang and Yu Hongwei 3253600100036 (20100328A) SD:Updated to new date formats,lower case. 3253600100037 Cosmetic changes and corrections 3253600100038 ENDBIB 36 0 3253600100039 COMMON 5 3 3253600100040 KT MONIT MONIT-ERR ERR-1 ERR-5 3253600100041 KEV MB MB PER-CENT PER-CENT 3253600100042 24. 655. 23. 4. 1. 3253600100043 ENDCOMMON 3 0 3253600100044 ENDSUBENT 43 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