ENTRY 14300 20170912 14351430000000001 SUBENT 14300001 20170912 14351430000100001 BIB 6 8 1430000100002 TITLE Helium Production Cross Section of Boron for 1430000100003 Fast-Reactor Neutron Spectra 1430000100004 AUTHOR (H.Farrar IV,W.N.McElroy,E.P.Lippincott) 1430000100005 REFERENCE (J,NT,25,305,1974) 1430000100006 #doi:10.13182/NT75-A24371 1430000100007 INSTITUTE (1USAAI,1USAHED) 1430000100008 ERR-ANALYS (DATA-ERR) No details on 1 sigma uncertainty values. 1430000100009 HISTORY (20170912C) BP 1430000100010 ENDBIB 8 0 1430000100011 NOCOMMON 0 0 1430000100012 ENDSUBENT 11 0 1430000199999 SUBENT 14300002 20170912 14351430000200001 BIB 6 16 1430000200002 REACTION (5-B-10(N,X)2-HE-4,,SIG,,FST) 1430000200003 FACILITY (REAC,1USAINL) Coupled Fast Reactivity Measurements 1430000200004 Facility (CFRMF). 1430000200005 INC-SPECT Total neutron fluence (6.28+-0.31)*10**15 n/cm2. 1430000200006 SAMPLE (5-B-10,ENR=0.9236) For the CFRMF irradiations low 1430000200007 flux levels made it desirable to maximize the amount 1430000200008 of 10B present. Enriched 10B powder, from a different 1430000200009 lot supplied by ORNL, was packed as tightly as 1430000200010 possible into the vanadium capsules. The mass of the 1430000200011 10B powder (~3 mg) was determined at ORNL with an 1430000200012 estimated 2sigma uncertainty of 0.005 mg by 1430000200013 subtracting the weight of the empty capsule and lid 1430000200014 from the filled capsule with the lid in place. 1430000200015 METHOD (HE-AC) Measured helium concentration 0.01196+- 1430000200016 0.00023 appm. Capsule number AI-II. 1430000200017 STATUS (TABLE) Table XII, 326. 1430000200018 ENDBIB 16 0 1430000200019 NOCOMMON 0 0 1430000200020 DATA 3 1 1430000200021 EN-MEAN DATA DATA-ERR 1430000200022 MEV B B 1430000200023 0.77 1.90 0.07 1430000200024 ENDDATA 3 0 1430000200025 ENDSUBENT 24 0 1430000299999 SUBENT 14300003 20170912 14351430000300001 BIB 6 12 1430000300002 REACTION (5-B-10(N,X)2-HE-4,,SIG,,FST) 1430000300003 FACILITY (REAC,1USAAIF) Experimental Breeder Reactor-II (EBR- 1430000300004 II). 1430000300005 INC-SPECT Total neutron fluence (1.12+-0.11)*10**22 n/cm2. 1430000300006 SAMPLE Natural boron (19.8% 10B) is usually used for EBR-II 1430000300007 irradiations, and the selected crystals weigh between 1430000300008 0.1 and 0.3 mg, a range where a 1% (2sigma) absolute 1430000300009 accuracy in mass can be achieved in a reasonable 1430000300010 period of time. 1430000300011 METHOD (HE-AC) Measured helium concentration 14570+-360 1430000300012 appm. Capsule number 6A3. 1430000300013 STATUS (TABLE) Table XII, 326. 1430000300014 ENDBIB 12 0 1430000300015 NOCOMMON 0 0 1430000300016 DATA 3 1 1430000300017 EN-MEAN DATA DATA-ERR 1430000300018 MEV B B 1430000300019 0.84 1.30 0.13 1430000300020 ENDDATA 3 0 1430000300021 ENDSUBENT 20 0 1430000399999 SUBENT 14300004 20170912 14351430000400001 BIB 6 12 1430000400002 REACTION (5-B-10(N,X)2-HE-4,,SIG,,FST) 1430000400003 FACILITY (REAC,1USAAIF) Experimental Breeder Reactor-II (EBR- 1430000400004 II). 1430000400005 INC-SPECT Total neutron fluence (1.05+-0.11)*10**22 n/cm2. 1430000400006 SAMPLE Natural boron (19.8% 10B) is usually used for EBR-II 1430000400007 irradiations, and the selected crystals weigh between 1430000400008 0.1 and 0.3 mg, a range where a 1% (2sigma) absolute 1430000400009 accuracy in mass can be achieved in a reasonable 1430000400010 period of time. 1430000400011 METHOD (HE-AC) Measured helium concentration 14810+-370 1430000400012 appm. Capsule number 7A3. 1430000400013 STATUS (TABLE) Table XII, 326. 1430000400014 ENDBIB 12 0 1430000400015 NOCOMMON 0 0 1430000400016 DATA 3 1 1430000400017 EN-MEAN DATA DATA-ERR 1430000400018 MEV B B 1430000400019 0.83 1.41 0.15 1430000400020 ENDDATA 3 0 1430000400021 ENDSUBENT 20 0 1430000499999 SUBENT 14300005 20170912 14351430000500001 BIB 6 12 1430000500002 REACTION (5-B-10(N,X)2-HE-4,,SIG,,FST) 1430000500003 FACILITY (REAC,1USAAIF) Experimental Breeder Reactor-II (EBR- 1430000500004 II). 1430000500005 INC-SPECT Total neutron fluence (9.52+-0.95)*10**21 n/cm2. 1430000500006 SAMPLE Natural boron (19.8% 10B) is usually used for EBR-II 1430000500007 irradiations, and the selected crystals weigh between 1430000500008 0.1 and 0.3 mg, a range where a 1% (2sigma) absolute 1430000500009 accuracy in mass can be achieved in a reasonable 1430000500010 period of time. 1430000500011 METHOD (HE-AC) Measured helium concentration 14010+-310 1430000500012 appm. Capsule number 7B3. 1430000500013 STATUS (TABLE) Table XII, 326. 1430000500014 ENDBIB 12 0 1430000500015 NOCOMMON 0 0 1430000500016 DATA 3 1 1430000500017 EN-MEAN DATA DATA-ERR 1430000500018 MEV B B 1430000500019 0.82 1.47 0.15 1430000500020 ENDDATA 3 0 1430000500021 ENDSUBENT 20 0 1430000599999 SUBENT 14300006 20170912 14351430000600001 BIB 6 12 1430000600002 REACTION (5-B-10(N,X)2-HE-4,,SIG,,FST) 1430000600003 FACILITY (REAC,1USAAIF) Experimental Breeder Reactor-II (EBR- 1430000600004 II). 1430000600005 INC-SPECT Total neutron fluence (7.47+-0.75)*10**21 n/cm2. 1430000600006 SAMPLE Natural boron (19.8% 10B) is usually used for EBR-II 1430000600007 irradiations, and the selected crystals weigh between 1430000600008 0.1 and 0.3 mg, a range where a 1% (2sigma) absolute 1430000600009 accuracy in mass can be achieved in a reasonable 1430000600010 period of time. 1430000600011 METHOD (HE-AC) Measured helium concentration 13980+-350 1430000600012 appm. Capsule number 7C3. 1430000600013 STATUS (TABLE) Table XII, 326. 1430000600014 ENDBIB 12 0 1430000600015 NOCOMMON 0 0 1430000600016 DATA 3 1 1430000600017 EN-MEAN DATA DATA-ERR 1430000600018 MEV B B 1430000600019 0.77 1.87 0.19 1430000600020 ENDDATA 3 0 1430000600021 ENDSUBENT 20 0 1430000699999 SUBENT 14300007 20170912 14351430000700001 BIB 6 12 1430000700002 REACTION (5-B-10(N,X)2-HE-4,,SIG,,FST) 1430000700003 FACILITY (REAC,1USAAIF) Experimental Breeder Reactor-II (EBR- 1430000700004 II). 1430000700005 INC-SPECT Total neutron fluence (1.04+-0.10)*10**22 n/cm2. 1430000700006 SAMPLE Natural boron (19.8% 10B) is usually used for EBR-II 1430000700007 irradiations, and the selected crystals weigh between 1430000700008 0.1 and 0.3 mg, a range where a 1% (2sigma) absolute 1430000700009 accuracy in mass can be achieved in a reasonable 1430000700010 period of time. 1430000700011 METHOD (HE-AC) Measured helium concentration 13980+-350 1430000700012 appm. Capsule number 3A3. 1430000700013 STATUS (TABLE) Table XII, 326. 1430000700014 ENDBIB 12 0 1430000700015 NOCOMMON 0 0 1430000700016 DATA 3 1 1430000700017 EN-MEAN DATA DATA-ERR 1430000700018 MEV B B 1430000700019 0.82 1.34 0.14 1430000700020 ENDDATA 3 0 1430000700021 ENDSUBENT 20 0 1430000799999 SUBENT 14300008 20170912 14351430000800001 BIB 6 12 1430000800002 REACTION (5-B-10(N,X)2-HE-4,,SIG,,FST) 1430000800003 FACILITY (REAC,1USAAIF) Experimental Breeder Reactor-II (EBR- 1430000800004 II). 1430000800005 INC-SPECT Total neutron fluence (3.83+-0.31)*10**21 n/cm2. 1430000800006 SAMPLE Natural boron (19.8% 10B) is usually used for EBR-II 1430000800007 irradiations, and the selected crystals weigh between 1430000800008 0.1 and 0.3 mg, a range where a 1% (2sigma) absolute 1430000800009 accuracy in mass can be achieved in a reasonable 1430000800010 period of time. 1430000800011 METHOD (HE-AC) Measured helium concentration 4856+-220 appm. 1430000800012 Capsule number 9A3. 1430000800013 STATUS (TABLE) Table XII, 326. 1430000800014 ENDBIB 12 0 1430000800015 NOCOMMON 0 0 1430000800016 DATA 3 1 1430000800017 EN-MEAN DATA DATA-ERR 1430000800018 MEV B B 1430000800019 0.85 1.27 0.12 1430000800020 ENDDATA 3 0 1430000800021 ENDSUBENT 20 0 1430000899999 SUBENT 14300009 20170912 14351430000900001 BIB 6 12 1430000900002 REACTION (5-B-10(N,X)2-HE-4,,SIG,,FST) 1430000900003 FACILITY (REAC,1USAAIF) Experimental Breeder Reactor-II (EBR- 1430000900004 II). 1430000900005 INC-SPECT Total neutron fluence (1.65+-0.08)*10**21 n/cm2. 1430000900006 SAMPLE Natural boron (19.8% 10B) is usually used for EBR-II 1430000900007 irradiations, and the selected crystals weigh between 1430000900008 0.1 and 0.3 mg, a range where a 1% (2sigma) absolute 1430000900009 accuracy in mass can be achieved in a reasonable 1430000900010 period of time. 1430000900011 METHOD (HE-AC) Measured helium concentration 2053+-45 appm. 1430000900012 Capsule number WB1. 1430000900013 STATUS (TABLE) Table XII, 326. 1430000900014 ENDBIB 12 0 1430000900015 NOCOMMON 0 0 1430000900016 DATA 3 1 1430000900017 EN-MEAN DATA DATA-ERR 1430000900018 MEV B B 1430000900019 0.82 1.24 0.07 1430000900020 ENDDATA 3 0 1430000900021 ENDSUBENT 20 0 1430000999999 SUBENT 14300010 20170912 14351430001000001 BIB 6 12 1430001000002 REACTION (5-B-10(N,X)2-HE-4,,SIG,,FST) 1430001000003 FACILITY (REAC,1USAAIF) Experimental Breeder Reactor-II (EBR- 1430001000004 II). 1430001000005 INC-SPECT Total neutron fluence (1.14+-0.06)*10**21 n/cm2. 1430001000006 SAMPLE Natural boron (19.8% 10B) is usually used for EBR-II 1430001000007 irradiations, and the selected crystals weigh between 1430001000008 0.1 and 0.3 mg, a range where a 1% (2sigma) absolute 1430001000009 accuracy in mass can be achieved in a reasonable 1430001000010 period of time. 1430001000011 METHOD (HE-AC) Measured helium concentration 2086+-73 appm. 1430001000012 Capsule number WB3. 1430001000013 STATUS (TABLE) Table XII, 326. 1430001000014 ENDBIB 12 0 1430001000015 NOCOMMON 0 0 1430001000016 DATA 3 1 1430001000017 EN-MEAN DATA DATA-ERR 1430001000018 MEV B B 1430001000019 0.69 1.83 0.11 1430001000020 ENDDATA 3 0 1430001000021 ENDSUBENT 20 0 1430001099999 ENDENTRY 10 0 1430099999999