ENTRY 31452 20210512 32003145200000001 SUBENT 31452001 20210512 32003145200100001 BIB 15 43 3145200100002 TITLE Measurement of neutron capture cross section for 152Sm 3145200100003 AUTHOR (Luo Xiaobing, Xia Yijun, Yang Zhihua, Liu Mantian) 3145200100004 INSTITUTE (3CPRSIU) 3145200100005 REFERENCE (J,CNP,16,275,1994) 3145200100006 FACILITY (VDG,3CPRBJG) 4.5 MeV Van de Graaff accelerator 3145200100007 INC-SOURCE (P-LI7) target LiF 0.2 mg/cm2 thick 3145200100008 (P-T) target T-Ti 1.5 mg/cm2 thick 3145200100009 During irradiation the samples were mounted on the 3145200100010 surface of a Al-ring with the neutron source at its 3145200100011 center and at different angles with respect to the 3145200100012 proton beam for neutron energy selection. 3145200100013 SAMPLE The samples were made by pressing oxide of natural 3145200100014 samarium into tablets of 20 mm in diameter and 2 mm 3145200100015 in thickness. 3145200100016 METHOD (ACTIV) 3145200100017 DETECTOR (HPGE) 105 cm**3 HPGe detector. 3145200100018 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) The fluctuation of 3145200100019 neutron fluence during irradiation was recorded by a 3145200100020 long counter placed at an angle of 0 deg with a dis- 3145200100021 tance of 220 mm from the target. 3145200100022 DECAY-MON (79-AU-198-G,2.6935D,DG,412.,.955) 3145200100023 CORRECTION Corrections have been made for: 3145200100024 * gamma-ray self absorption in the samples and 3145200100025 gold foils, 3145200100026 * neutron fluence fluctuations, 3145200100027 * variation of gamma-ray efficiency caused by 3145200100028 the variation of sample-to-detector distance, 3145200100029 * neutron scattering background, and 3145200100030 * the coincidence sum effect for Sm-153. 3145200100031 ERR-ANALYS (ERR-T) The main uncertainties of the cross sections 3145200100032 include: 3145200100033 (ERR-1) efficiency of gamma-ray full energy peak 2.5% 3145200100034 (ERR-S,0.8,1.7) counting statistics 0.8-1.7% 3145200100035 (ERR-2) decay schemes 2% 3145200100036 (ERR-3) correction of gamma-ray self-absorption 1% 3145200100037 (ERR-4) neutron scattering background 0.5% 3145200100038 (ERR-5) weight and purity of the samples 0.5% 3145200100039 (ERR-6) correction of coincidence-sum effect 0.5% 3145200100040 (ERR-7,3.,4.5) standard cross sections 3-4.5% 3145200100041 STATUS (TABLE) Table 2 of Chin.J.Nucl.Phys.16(1994)275 3145200100042 HISTORY (19950712C) HW 3145200100043 (20100219A) SD:Updated to new date formats,lower case. 3145200100044 (20210512U) On. FACILITY: 3CPRBNU -> 3CPRBJG 3145200100045 ENDBIB 43 0 3145200100046 COMMON 6 3 3145200100047 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 3145200100048 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3145200100049 2.5 2. 1. 0.5 0.5 0.5 3145200100050 ENDCOMMON 3 0 3145200100051 ENDSUBENT 50 0 3145200199999 SUBENT 31452002 20100308 31443145200200001 BIB 2 2 3145200200002 REACTION (62-SM-152(N,G)62-SM-153,,SIG) 3145200200003 DECAY-DATA (62-SM-153,1.946D,DG,103.,.283) 3145200200004 ENDBIB 2 0 3145200200005 NOCOMMON 0 0 3145200200006 DATA 6 10 3145200200007 EN +EN-ERR -EN-ERR DATA ERR-T MONIT 3145200200008 KEV KEV KEV MB MB MB 3145200200009 22. 10.6 0.6 578.1 31.9 688. 3145200200010 48. 24.2 18.4 371.1 20.5 443.8 3145200200011 106. 34.9 32.2 268.2 14.6 304.6 3145200200012 178. 27.7 33.3 204.8 11.2 257.7 3145200200013 189. 54.1 41.4 192.1 10.8 253.7 3145200200014 211. 19.0 19.9 185.9 10.2 246.7 3145200200015 336. 104.5 84.5 145.8 8.2 183.3 3145200200016 598. 140.1 133.8 115.1 6.8 109. 3145200200017 889. 111.3 134.5 111.2 6.5 84.9 3145200200018 1019. 80.0 83.5 105.6 6.9 79.7 3145200200019 ENDDATA 12 0 3145200200020 ENDSUBENT 19 0 3145200299999 ENDENTRY 2 0 3145299999999