ENTRY 14153 20160830 14231415300000001 SUBENT 14153001 20160830 14231415300100001 BIB 9 16 1415300100002 TITLE Measurement of the 93Nb(n,n') Fission Spectrum Cross 1415300100003 Section 1415300100004 AUTHOR (T.G.Williamson,T.A.Ayers,W.L.Hammersten,G.P.Lamaze, 1415300100005 F.J.Schima) 1415300100006 REFERENCE (S,ASTM-STP-1001,229,1989) 1415300100007 INSTITUTE (1USAVIR,1USANIS) 1415300100008 FACILITY (REAC,1USANBS) 1415300100009 INC-SPECT 235U neutron fission spectrum. 1415300100010 METHOD (ACTIV,INTB) Five niobium foils were irradiated in 1415300100011 the cavity fission source of the NBS reactor. Foils 1415300100012 were counted with Ge low energy photon spectrometer. 1415300100013 Nb-93-M decays by internal conversion from a 30 keV 1415300100014 metastable state. The niobium X-ray energies are 16.6 1415300100015 and 18.6 keV. 1415300100016 DECAY-DATA (41-NB-93-M,16.13YR,XR) 1415300100017 HISTORY (20160830C) BP 1415300100018 ENDBIB 16 0 1415300100019 COMMON 1 3 1415300100020 EN-DUMMY 1415300100021 MEV 1415300100022 2.0 1415300100023 ENDCOMMON 3 0 1415300100024 ENDSUBENT 23 0 1415300199999 SUBENT 14153002 20160830 14231415300200001 BIB 5 13 1415300200002 REACTION (41-NB-93(N,INL)41-NB-93-M,,SIG,,FIS) 1415300200003 INC-SOURCE (REAC) Fluence: 0.94x10**16 cm-2, Time: 144h. 1415300200004 SAMPLE Niobium foil RE-3, mass 0.131 g, radius 6.35 mm, 1415300200005 thickness 0.127 mm, Ta concentration 700 ppm. 1415300200006 ERR-ANALYS (ERR-T) One standard deviation error for each foil is 1415300200007 3.4% is a quadratic combination of: 1415300200008 (ERR-S) Counting error. 1415300200009 (ERR-1) Positioning error. 1415300200010 (ERR-2) Self shielding and geometry correction. 1415300200011 (ERR-3) Irradiation uncertainty. 1415300200012 (ERR-4) Niobium decay rate. 1415300200013 (ERR-5) Standard source uncertainty. 1415300200014 STATUS (TABLE) Table 4, page 233. 1415300200015 ENDBIB 13 0 1415300200016 COMMON 6 3 1415300200017 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 1415300200018 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 1415300200019 1.0 1.3 1.8 2.1 0.8 0.81415300200020 ENDCOMMON 3 0 1415300200021 DATA 2 1 1415300200022 DATA ERR-T 1415300200023 MB MB 1415300200024 145.2 4.9 1415300200025 ENDDATA 3 0 1415300200026 ENDSUBENT 25 0 1415300299999 SUBENT 14153003 20160830 14231415300300001 BIB 5 13 1415300300002 REACTION (41-NB-93(N,INL)41-NB-93-M,,SIG,,FIS) 1415300300003 INC-SOURCE (REAC) Fluence: 1.53x10**16 cm-2, Time: 101h. 1415300300004 SAMPLE Niobium foil A, mass 0.100 g, radius 5.56 mm, 1415300300005 thickness 0.127 mm, Ta concentration 700 ppm. 1415300300006 ERR-ANALYS (ERR-T) One standard deviation error for each foil is 1415300300007 3.4% is a quadratic combination of: 1415300300008 (ERR-S) Counting error. 1415300300009 (ERR-1) Positioning error. 1415300300010 (ERR-2) Self shielding and geometry correction. 1415300300011 (ERR-3) Irradiation uncertainty. 1415300300012 (ERR-4) Niobium decay rate. 1415300300013 (ERR-5) Standard source uncertainty. 1415300300014 STATUS (TABLE) Table 4, page 233. 1415300300015 ENDBIB 13 0 1415300300016 COMMON 6 3 1415300300017 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 1415300300018 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 1415300300019 1.0 1.3 1.8 2.1 0.8 0.81415300300020 ENDCOMMON 3 0 1415300300021 DATA 2 1 1415300300022 DATA ERR-T 1415300300023 MB MB 1415300300024 144.0 4.9 1415300300025 ENDDATA 3 0 1415300300026 ENDSUBENT 25 0 1415300399999 SUBENT 14153004 20160830 14231415300400001 BIB 5 13 1415300400002 REACTION (41-NB-93(N,INL)41-NB-93-M,,SIG,,FIS) 1415300400003 INC-SOURCE (REAC) Fluence: 1.45x10**16 cm-2, Time: 101h. 1415300400004 SAMPLE Niobium foil RE-B, mass 0.133 g, radius 6.35 mm, 1415300400005 thickness 0.127 mm, Ta concentration 700 ppm. 1415300400006 ERR-ANALYS (ERR-T) One standard deviation error for each foil is 1415300400007 3.4% is a quadratic combination of: 1415300400008 (ERR-S) Counting error. 1415300400009 (ERR-1) Positioning error. 1415300400010 (ERR-2) Self shielding and geometry correction. 1415300400011 (ERR-3) Irradiation uncertainty. 1415300400012 (ERR-4) Niobium decay rate. 1415300400013 (ERR-5) Standard source uncertainty. 1415300400014 STATUS (TABLE) Table 4, page 233. 1415300400015 ENDBIB 13 0 1415300400016 COMMON 6 3 1415300400017 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 1415300400018 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 1415300400019 1.0 1.3 1.8 2.1 0.8 0.81415300400020 ENDCOMMON 3 0 1415300400021 DATA 2 1 1415300400022 DATA ERR-T 1415300400023 MB MB 1415300400024 144.0 4.9 1415300400025 ENDDATA 3 0 1415300400026 ENDSUBENT 25 0 1415300499999 SUBENT 14153005 20160830 14231415300500001 BIB 5 13 1415300500002 REACTION (41-NB-93(N,INL)41-NB-93-M,,SIG,,FIS) 1415300500003 INC-SOURCE (REAC) Fluence: 1.54x10**16 cm-2, Time: 101h. 1415300500004 SAMPLE Niobium foil T, mass 0.004 g, radius 5.56 mm, 1415300500005 thickness 0.005 mm, Ta concentration 700 ppm. 1415300500006 ERR-ANALYS (ERR-T) One standard deviation error for each foil is 1415300500007 3.4% is a quadratic combination of: 1415300500008 (ERR-S) Counting error. 1415300500009 (ERR-1) Positioning error. 1415300500010 (ERR-2) Self shielding and geometry correction. 1415300500011 (ERR-3) Irradiation uncertainty. 1415300500012 (ERR-4) Niobium decay rate. 1415300500013 (ERR-5) Standard source uncertainty. 1415300500014 STATUS (TABLE) Table 4, page 233. 1415300500015 ENDBIB 13 0 1415300500016 COMMON 6 3 1415300500017 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 1415300500018 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 1415300500019 1.0 1.3 1.8 2.1 0.8 0.81415300500020 ENDCOMMON 3 0 1415300500021 DATA 2 1 1415300500022 DATA ERR-T 1415300500023 MB MB 1415300500024 145.4 4.9 1415300500025 ENDDATA 3 0 1415300500026 ENDSUBENT 25 0 1415300599999 SUBENT 14153006 20160830 14231415300600001 BIB 5 13 1415300600002 REACTION (41-NB-93(N,INL)41-NB-93-M,,SIG,,FIS) 1415300600003 INC-SOURCE (REAC) Fluence: 9.82x10**16 cm-2, Time: 733h. 1415300600004 SAMPLE Niobium foil RE-2, mass 0.135 g, radius 6.35 mm, 1415300600005 thickness 0.127 mm, Ta concentration 700 ppm. 1415300600006 ERR-ANALYS (ERR-T) One standard deviation error for each foil is 1415300600007 3.4% is a quadratic combination of: 1415300600008 (ERR-S) Counting error. 1415300600009 (ERR-1) Positioning error. 1415300600010 (ERR-2) Self shielding and geometry correction. 1415300600011 (ERR-3) Irradiation uncertainty. 1415300600012 (ERR-4) Niobium decay rate. 1415300600013 (ERR-5) Standard source uncertainty. 1415300600014 STATUS (TABLE) Table 4, page 233. 1415300600015 ENDBIB 13 0 1415300600016 COMMON 6 3 1415300600017 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 1415300600018 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 1415300600019 1.0 1.3 1.8 2.1 0.8 0.81415300600020 ENDCOMMON 3 0 1415300600021 DATA 2 1 1415300600022 DATA ERR-T 1415300600023 MB MB 1415300600024 143.2 4.9 1415300600025 ENDDATA 3 0 1415300600026 ENDSUBENT 25 0 1415300699999 SUBENT 14153007 20160902 14231415300700001 BIB 5 13 1415300700002 REACTION (41-NB-93(N,INL)41-NB-93-M,,SIG,,FIS) 1415300700003 INC-SOURCE (REAC) Fluence: 1.27x10**16 cm-2, Time: 93h. 1415300700004 SAMPLE Niobium foil TS-2, mass 0.096 g, radius 6.35 mm, 1415300700005 thickness 0.092 mm, Ta concentration 10 ppm. 1415300700006 ERR-ANALYS (ERR-T) One standard deviation error for each foil is 1415300700007 3.4% is a quadratic combination of: 1415300700008 (ERR-S) Counting error. 1415300700009 (ERR-1) Positioning error. 1415300700010 (ERR-2) Self shielding and geometry correction. 1415300700011 (ERR-3) Irradiation uncertainty. 1415300700012 (ERR-4) Niobium decay rate. 1415300700013 (ERR-5) Standard source uncertainty. 1415300700014 STATUS (TABLE) Table 4, page 233. 1415300700015 ENDBIB 13 0 1415300700016 COMMON 6 3 1415300700017 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 1415300700018 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 1415300700019 1.0 1.3 1.8 2.1 0.8 0.81415300700020 ENDCOMMON 3 0 1415300700021 DATA 2 1 1415300700022 DATA ERR-T 1415300700023 MB MB 1415300700024 141.1 4.8 1415300700025 ENDDATA 3 0 1415300700026 ENDSUBENT 25 0 1415300799999 SUBENT 14153008 20160830 14231415300800001 BIB 3 12 1415300800002 REACTION (41-NB-93(N,INL)41-NB-93-M,,SIG,,FIS) 1415300800003 ERR-ANALYS (DATA-ERR) The unweighted average of cross sections 1415300800004 from six foils, this 3.4% error includes contributions 1415300800005 from uncertainty irradiation, the decay constant, 1415300800006 standard source and the X-ray self-attenuation. 1415300800007 STATUS (TABLE) page 233. 1415300800008 (DEP,14153002) 1415300800009 (DEP,14153003) 1415300800010 (DEP,14153004) 1415300800011 (DEP,14153005) 1415300800012 (DEP,14153006) 1415300800013 (DEP,14153007) 1415300800014 ENDBIB 12 0 1415300800015 NOCOMMON 0 0 1415300800016 DATA 2 1 1415300800017 DATA DATA-ERR 1415300800018 MB MB 1415300800019 144.0 5.0 1415300800020 ENDDATA 3 0 1415300800021 ENDSUBENT 20 0 1415300899999 ENDENTRY 8 0 1415399999999