ENTRY 23226 20190301 22772322600000001 SUBENT 23226001 20190301 22772322600100001 BIB 9 20 2322600100002 TITLE Spectrum-integrated helium generation cross sections 2322600100003 for 6Li and 10B in the Sigma-Sigma and fission cavity 2322600100004 standard neutron fields 2322600100005 AUTHOR (B.M.Oliver, H.Farrar IV, E.P.Lippincott, A.Fabry) 2322600100006 INSTITUTE (1USAAI,1USAHED,2BLGMOL) 2322600100007 REFERENCE (C,82GAITHERS,2,889,1982) 2322600100008 FACILITY (REAC,2BLGMOL) BR1 reactor 2322600100009 METHOD (HE-AC) 2322600100010 CORRECTION - Neutron perturbations due to neutron self-shielding 2322600100011 and flux depression, neutron flux gradients over 2322600100012 the irradiation assemblies, and assembly scattering 2322600100013 - Subtraction of the small epithermal helium; 2322600100014 contribution by placement of samples 30 cm above 2322600100015 and below the central region of Cd tube not wrapped 2322600100016 by U235 (for fission cavity measurements); 2322600100017 - Subtraction of 19F helium production for 6LiF sample 2322600100018 (23 mb for fission cavity, 5 mb for Sigma-Sigma). 2322600100019 ERR-ANALYS (DATA-ERR) random plus systematic (1 sigma) 2322600100020 HISTORY (20140218C) On 2322600100021 (20190301A) On. 004 and 005 added. 2322600100022 ENDBIB 20 0 2322600100023 NOCOMMON 0 0 2322600100024 ENDSUBENT 23 0 2322600199999 SUBENT 23226002 20190301 22772322600200001 BIB 7 16 2322600200002 REACTION (5-B-10(N,X)2-HE-4,,SIG,,FIS) 2322600200003 MONITOR (28-NI-58(N,P)27-CO-58,,SIG,,FIS) 2322600200004 MONIT-REF (,A.Fabry+,S,IAEA-208,233,1978) 2322600200005 INC-SPECT 235U fission spectrum 2322600200006 SAMPLE The following samples were in an Al cylindrical box 2322600200007 (8 mm OD, 46 mm long): 2322600200008 - Encapsulated enriched (93.0%) boron-10 2322600200009 - Bare natural (19.8%) boron crystal 2322600200010 - Encapsulated enriched (99.1%) 6LiF 2322600200011 - Bare enriched (99.1%) 6LiF crystals 2322600200012 Three such Al boxes were at three locations (+30 cm, 2322600200013 0 cm, -30 cm) of 1 m Cd tube (10 mm OD, 8 mm ID). 2322600200014 The central 6.8-cm section of the Cd tube was wrapped 2322600200015 by 0.1-mm-thick enriched (93%) 235U foil. 2322600200016 STATUS (TABLE) Table 3 of Proc. 4th ASTM-EURATOM Symp. p889 2322600200017 HISTORY (20190301U) On. SAMPLE and INC-SPECT moved from 001 2322600200018 ENDBIB 16 0 2322600200019 NOCOMMON 0 0 2322600200020 DATA 4 1 2322600200021 KT-DUMMY DATA DATA-ERR MONIT 2322600200022 MEV MB MB MB 2322600200023 1.32 541. 24. 108.5 2322600200024 ENDDATA 3 0 2322600200025 ENDSUBENT 24 0 2322600299999 SUBENT 23226003 20190301 22772322600300001 BIB 7 16 2322600300002 REACTION (3-LI-6(N,T)2-HE-4,,SIG,,FIS) 2322600300003 MONITOR (28-NI-58(N,P)27-CO-58,,SIG,,FIS) 2322600300004 MONIT-REF (,A.Fabry+,S,IAEA-208,233,1978) 2322600300005 INC-SPECT 235U fission spectrum 2322600300006 SAMPLE The following samples were in an Al cylindrical box 2322600300007 (8 mm OD, 46 mm long): 2322600300008 - Encapsulated enriched (93.0%) boron-10 2322600300009 - Bare natural (19.8%) boron crystal 2322600300010 - Encapsulated enriched (99.1%) 6LiF 2322600300011 - Bare enriched (99.1%) 6LiF crystals 2322600300012 Three such Al boxes were at three locations (+30 cm, 2322600300013 0 cm, -30 cm) of 1 m Cd tube (10 mm OD, 8 mm ID). 2322600300014 The central 6.8-cm section of the Cd tube was wrapped 2322600300015 by 0.1-mm-thick enriched (93%) 235U foil. 2322600300016 STATUS (TABLE) Table 3 of Proc. 4th ASTM-EURATOM Symp. p889 2322600300017 HISTORY (20190301U) On. SAMPLE and INC-SPECT moved from 001 2322600300018 ENDBIB 16 0 2322600300019 NOCOMMON 0 0 2322600300020 DATA 4 1 2322600300021 KT-DUMMY DATA DATA-ERR MONIT 2322600300022 MEV MB MB MB 2322600300023 1.32 456. 20. 108.5 2322600300024 ENDDATA 3 0 2322600300025 ENDSUBENT 24 0 2322600399999 SUBENT 23226004 20190301 22772322600400001 BIB 9 23 2322600400002 REACTION (5-B-10(N,X)2-HE-4,,SIG,,SPA) 2322600400003 MONITOR (28-NI-58(N,P)27-CO-58,,SIG,,SPA) 2322600400004 MONIT-REF (,A.Fabry+,S,IAEA-208,233,1978) 2322600400005 INC-SPECT Sigma-Sigma neutron reference spectrum 2322600400006 REL-REF (N,,J.Grundl+,S,IAEA-208,(1),53,1978) Table II-B 2322600400007 Average energy = 0.76 MeV 2322600400008 Median energy = 400 keV 2322600400009 E(P=0.95) = 20 keV 2322600400010 E(P=0.05) = 2.9 MeV 2322600400011 where 2322600400012 Fraction of spectrum below E(P=0.95) or above 2322600400013 E(P=0.05) is 5%. 2322600400014 COMMENT By compiler (2019-03-01): 2322600400015 A neutron spectrum of the Sigma-Sigma facility is 2322600400016 available in the IRDF-2002 (standard spectra). 2322600400017 SAMPLE The following samples were irradiated together: 2322600400018 - Encapsulated enriched (93%) boron-10 2322600400019 - Bare enriched (93%) boron-10 crystal 2322600400020 - Bare natural boron crystal 2322600400021 - Encapsulated enriched (99.1%) 6LiF 2322600400022 - Bare enriched (99.1%) 6LiF crystals 2322600400023 STATUS (TABLE) Table 3 of Proc. 4th ASTM-EURATOM Symp. p889 2322600400024 HISTORY (20190301C) On 2322600400025 ENDBIB 23 0 2322600400026 NOCOMMON 0 0 2322600400027 DATA 4 1 2322600400028 EN-DUMMY DATA DATA-ERR MONIT 2322600400029 MEV MB MB MB 2322600400030 0.76 1695. 71. 26.5 2322600400031 ENDDATA 3 0 2322600400032 ENDSUBENT 31 0 2322600499999 SUBENT 23226005 20190301 22772322600500001 BIB 9 23 2322600500002 REACTION (3-LI-6(N,T)2-HE-4,,SIG,,SPA) 2322600500003 MONITOR (28-NI-58(N,P)27-CO-58,,SIG,,SPA) 2322600500004 MONIT-REF (,A.Fabry+,S,IAEA-208,233,1978) 2322600500005 INC-SPECT Sigma-Sigma neutron reference spectrum 2322600500006 REL-REF (N,,J.Grundl+,S,IAEA-208,(1),53,1978) Table II-B 2322600500007 Average energy = 0.76 MeV 2322600500008 Median energy = 400 keV 2322600500009 E(P=0.95) = 20 keV 2322600500010 E(P=0.05) = 2.9 MeV 2322600500011 where 2322600500012 Fraction of spectrum below E(P=0.95) or above 2322600500013 E(P=0.05) is 5%. 2322600500014 COMMENT By compiler (2019-03-01): 2322600500015 A neutron spectrum of the Sigma-Sigma facility is 2322600500016 available in the IRDF-2002 (standard spectra). 2322600500017 SAMPLE The following samples were irradiated together: 2322600500018 - Encapsulated enriched (93%) boron-10 2322600500019 - Bare enriched (93%) boron-10 crystal 2322600500020 - Bare natural boron crystal 2322600500021 - Encapsulated enriched (99.1%) 6LiF 2322600500022 - Bare enriched (99.1%) 6LiF crystals 2322600500023 STATUS (TABLE) Table 3 of Proc. 4th ASTM-EURATOM Symp. p889 2322600500024 HISTORY (20190301C) On 2322600500025 ENDBIB 23 0 2322600500026 NOCOMMON 0 0 2322600500027 DATA 4 1 2322600500028 EN-DUMMY DATA DATA-ERR MONIT 2322600500029 MEV MB MB MB 2322600500030 0.76 931. 35. 26.5 2322600500031 ENDDATA 3 0 2322600500032 ENDSUBENT 31 0 2322600599999 ENDENTRY 5 0 2322699999999