ENTRY 31793 20201024 31983179300000001 SUBENT 31793001 20201024 31983179300100001 BIB 13 48 3179300100002 TITLE Measurement of thermal neutron capture cross section 3179300100003 of 71Ga with dual monitor foils and covariance 3179300100004 analysis 3179300100005 AUTHOR (P.Panikkath, N.Otuka, Y.Iwamoto, P.Mohanakrishnan) 3179300100006 INSTITUTE (3INDMNP,3ZZZIAE,2JPNJAE) 3179300100007 REFERENCE (J,EPJ/A,55,91,2019) 3179300100008 (J,EPJ/CS,239,01027,2020) 3179300100009 Minor correction in the total uncertainty 3179300100010 INC-SOURCE (AM-BE) Am-Be source in concrete bunker 3179300100011 (4E+7 neutrons/sec/4pi) 3179300100012 SAMPLE (31-GA-71,NAT=0.3989) Ga2O3 3179300100013 Bare: 101+/-0.5 mg, 0.012 cm thick 3179300100014 Cd-covered: 108+/-0.5 mg, 0.013 cm thick 3179300100015 (79-AU-197,NAT=1.) Elemental 3179300100016 Bare: 124.3+/-0.6 mg, 0.005 cm thick 3179300100017 Cd-covered: 125.7+/-0.6 mg, 0.005 cm thick 3179300100018 (25-MN-55,NAT=1.) Mn(83wt%)-Cu 3179300100019 Bare: 49.7+/-0.2 mg, 0.005 cm thick 3179300100020 Cd-covered: 49.4+/-0.2 mg, 0.005 cm thick 3179300100021 METHOD (ACTIV) Iradiated for 5 days (Ga+Mn) or 32 days (Au), 3179300100022 and counted for 2500 to 60000 sec. 3179300100023 DETECTOR (HPGE) Relative efficiency of 30% calibrated by a 3179300100024 152Eu source 3179300100025 CORRECTION Corrected for 3179300100026 - Coincidence summing effect, 3179300100027 - Neutron self-shielding, 3179300100028 - Gamma attenuation. 3179300100029 Capture of scattered neutrons is considered as 3179300100030 negligible. 3179300100031 ADD-RES The off-diagonal mean of the thermal cross sections 3179300100032 determined with Au and Mn monitor foils: 4.04+/-0.27 b3179300100033 COMMENT By P.Panikkath and N.Otuka (2019-08-14): 3179300100034 Three typos found in the manuscript after publication 3179300100035 of Eur.Phys.J 55(2019)91: 3179300100036 1. 0.73 instead of 0.71 for the correlation 3179300100037 coefficient between two thermal cross sections 3179300100038 (Table 6). 3179300100039 2. 7.89% instead of 8.09% for the total uncertainty 3179300100040 in the thermal cross section determined with the 3179300100041 Mn monitor foil (Table 6). 3179300100042 3. 4.04+/-0.27 b instead of 4.05+/-0.27 b for the 3179300100043 off-diagonal weighted mean of the thermal cross 3179300100044 section (Table 7). 3179300100045 These corrections are taken into account in this 3179300100046 EXFOR entry and EPJ Web Conf.239(2020)01027. 3179300100047 STATUS (APRVD) Approved by Priyada Panikkath (2019-06-14) 3179300100048 HISTORY (20190613C) On 3179300100049 (20201024U) On. REFERENCE:J,EPJ/CS,239,01027,2020 added3179300100050 ENDBIB 48 0 3179300100051 NOCOMMON 0 0 3179300100052 ENDSUBENT 51 0 3179300199999 SUBENT 31793002 20190516 31893179300200001 BIB 7 23 3179300200002 REACTION (31-GA-71(N,G)31-GA-72,,SIG) 3179300200003 DECAY-DATA (31-GA-72,14.10HR,DG,834.13,0.9545) 3179300200004 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 3179300200005 DECAY-MON (79-AU-198-G,2.6941D,DG,411.80,0.9562) 3179300200006 ANALYSIS Westcott factor g=1.001 for 71Ga and 1.006 for 197Au 3179300200007 ERR-ANALYS (ERR-T) Total uncertainty (6.68%) 3179300200008 (ERR-1) Counting statistics - Gd, bare (5.44%) 3179300200009 (ERR-2) Counting statistics - Au, bare (1.13%) 3179300200010 (ERR-3) Counting statistics - Gd, Cd covered (2.67%) 3179300200011 (ERR-4) Counting statistics - Au, Cd covered (0.84%) 3179300200012 (ERR-5) Timing factor - Gd, bare (0.50%) 3179300200013 (ERR-6) Timing factor - Gd, Cd covered (0.11%) 3179300200014 (ERR-7) Sample mass - Gd, bare (1.15%) 3179300200015 (ERR-8) Sample mass - Au, bare (0.91%) 3179300200016 (ERR-9) Sample mass - Gd, Cd covered (0.61%) 3179300200017 (ERR-10) Sample mass - Au, Cd covered (0.42%) 3179300200018 (ERR-11) Gamma intensity - Gd (0.08%) 3179300200019 (ERR-12) Gamma intensity - Au (0.06%) 3179300200020 (ERR-13) Efficiency ratio (1.74%) 3179300200021 (ERR-14) Isotopic abundance - Gd (0.02%) 3179300200022 (MONIT-ERR) Au thermal cross section (0.09%) 3179300200023 STATUS (TABLE) Table 7 of Eur.Phys.J.A55(2019)91 3179300200024 (COREL,31793003) Result determined with Mn monitor 3179300200025 ENDBIB 23 0 3179300200026 COMMON 14 9 3179300200027 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 3179300200028 ERR-7 ERR-8 ERR-9 ERR-10 ERR-11 ERR-12 3179300200029 ERR-13 ERR-14 3179300200030 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3179300200031 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3179300200032 PER-CENT PER-CENT 3179300200033 5.44 1.13 2.67 0.84 0.50 0.11 3179300200034 1.15 0.91 0.61 0.42 0.08 0.06 3179300200035 1.74 0.02 3179300200036 ENDCOMMON 9 0 3179300200037 DATA 5 1 3179300200038 EN DATA ERR-T MONIT MONIT-ERR 3179300200039 EV B PER-CENT B PER-CENT 3179300200040 0.0253 4.07 6.68 98.65 0.09 3179300200041 ENDDATA 3 0 3179300200042 ENDSUBENT 41 0 3179300299999 SUBENT 31793003 20190516 31893179300300001 BIB 7 23 3179300300002 REACTION (31-GA-71(N,G)31-GA-72,,SIG) 3179300300003 DECAY-DATA (31-GA-72,14.10HR,DG,834.13,0.9545) 3179300300004 MONITOR (25-MN-55(N,G)25-MN-56,,SIG) 3179300300005 DECAY-MON (25-MN-56,2.5789HR,DG,846.76,0.9885) 3179300300006 ANALYSIS Westcott factor g=1.001 for 71Ga and 55Mn 3179300300007 ERR-ANALYS (ERR-T) Total uncertainty (7.89%) 3179300300008 (ERR-1) Counting statistics - Gd, bare (5.44%) 3179300300009 (ERR-2) Counting statistics - Au, bare (4.36%) 3179300300010 (ERR-3) Counting statistics - Gd, Cd covered (2.67%) 3179300300011 (ERR-4) Counting statistics - Au, Cd covered (2.04%) 3179300300012 (ERR-5) Timing factor - Gd, bare (0.50%) 3179300300013 (ERR-6) Timing factor - Gd, Cd covered (0.11%) 3179300300014 (ERR-7) Sample mass - Gd, bare (1.15%) 3179300300015 (ERR-8) Sample mass - Au, bare (0.52%) 3179300300016 (ERR-9) Sample mass - Gd, Cd covered (0.61%) 3179300300017 (ERR-10) Sample mass - Au, Cd covered (0.12%) 3179300300018 (ERR-11) Gamma intensity - Gd (0.08%) 3179300300019 (ERR-12) Gamma intensity - Au (0.03%) 3179300300020 (ERR-13) Efficiency ratio (0.04%) 3179300300021 (ERR-14) Isotopic abundance - Gd (0.02%) 3179300300022 (MONIT-ERR) Mn thermal cross section (0.37%) 3179300300023 STATUS (TABLE) Table 7 of Eur.Phys.J.A55(2019)91 3179300300024 (COREL,31793002) Result determined with Au monitor 3179300300025 ENDBIB 23 0 3179300300026 COMMON 14 9 3179300300027 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 3179300300028 ERR-7 ERR-8 ERR-9 ERR-10 ERR-11 ERR-12 3179300300029 ERR-13 ERR-14 3179300300030 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3179300300031 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3179300300032 PER-CENT PER-CENT 3179300300033 5.44 4.36 2.67 2.04 0.50 0.11 3179300300034 1.15 0.52 0.61 0.12 0.08 0.03 3179300300035 0.04 0.02 3179300300036 ENDCOMMON 9 0 3179300300037 DATA 5 1 3179300300038 EN DATA ERR-T MONIT MONIT-ERR 3179300300039 EV B PER-CENT B PER-CENT 3179300300040 0.0253 3.97 7.89 13.36 0.37 3179300300041 ENDDATA 3 0 3179300300042 ENDSUBENT 41 0 3179300399999 ENDENTRY 3 0 3179399999999