ENTRY 13838 20020606 00001383800000001 SUBENT 13838001 20020606 00001383800100001 BIB 14 43 1383800100002 INSTITUTE (1USAANL) 1383800100003 REFERENCE (J,NIM,121,581,1974) 1383800100004 AUTHOR (G.D.Loper,G.E.Thomas,L.M.Bollinger) 1383800100005 TITLE Correction for a resonance-capture component in 1383800100006 thermal-neutron-capture gamma-ray spectra 1383800100007 FACILITY (REAC,1USAANL) Internal-target facility at CP-5 1383800100008 reactor. 1383800100009 INC-SOURCE (REAC) Reactor core. 1383800100010 INC-SPECT Gamma-ray spectra measured for a sample placed at two 1383800100011 positions - at the center of the reactor (cadmium 1383800100012 ratio 6.8), and at a distance about 44" from the 1383800100013 center (cadmium ratio 100). 1383800100014 SAMPLE Composite sample of 16.42 mg, 3.8E-4 cm-thick gold foil1383800100015 and 2230 mg, 8.6E-2 cm-thick lead disc (22.6% 207Pb) 1383800100016 enclosed in a graphite holder. 1383800100017 DETECTOR (GE-IN) Intrinsic Germanium detector. 1383800100018 MONITOR (82-PB-207(N,G)82-PB-208,,SPC,,SPA) 1383800100019 ((MONIT1)82-PB-207(N,G)82-PB-208,,SIG,,MXW) 1383800100020 ((MONIT2)79-AU-197(N,G)79-AU-198,,SIG,,MXW) 1383800100021 Absolute intensities of 198Au lines determined by 1383800100022 comparison with 7368-keV line in 207Pb. 1383800100023 Dependence of both the thermal and the epithermal 1383800100024 flux on position along the through tube obtained 1383800100025 from activation measurements made with 2.5E-3 cm- 1383800100026 thick gold foils. 1383800100027 Relative efficiency of the detector determined as a 1383800100028 function of gamma-ray energy by using the known 1383800100029 absolute intensities of the gamma-ray lines formed by 1383800100030 thermal-neutron capture in 14N. 1383800100031 ANALYSIS Contribution of epithermal neutrons to the gamma-ray 1383800100032 spectrum is determined by measuring the intensities 1383800100033 for two neutron fields of known epithermal ratio 1383800100034 (two spectrum method). 1383800100035 ERR-ANALYS (DATA-ERR) Uncertainties in absolute line intensities; 1383800100036 include the statistical errors and the 5% systematic 1383800100037 error due to uncertainty in detector efficiency. 1383800100038 (E-ERR) Uncertainties in gamma-ray energies. 1383800100039 REL-REF (R,,W.R.Kane,W,Kane,1974) Good agreement with Kane's 1383800100040 data, where the experimental approach is entirely 1383800100041 different from the approach used in this experiment 1383800100042 and involves quite different kinds of experimental 1383800100043 uncertainties. 1383800100044 HISTORY (20020523C) IS + VM 1383800100045 ENDBIB 43 0 1383800100046 COMMON 5 3 1383800100047 EN-DUMMY MONIT1 MONIT1-ERR MONIT2 MONIT2-ERR 1383800100048 EV B B B B 1383800100049 0.0253 0.709 0.010 98.8 0.3 1383800100050 ENDCOMMON 3 0 1383800100051 ENDSUBENT 50 0 1383800199999 SUBENT 13838002 20020606 00001383800200001 BIB 2 2 1383800200002 REACTION (79-AU-197(N,G)79-AU-198,,SPC,,SPA) 1383800200003 STATUS Data taken from Table 2 of reference. 1383800200004 ENDBIB 2 0 1383800200005 NOCOMMON 0 0 1383800200006 DATA 6 19 1383800200007 E E E-ERR DATA DATA-ERR DATA-MAX 1383800200008 KEV KEV KEV PRT/INC PRT/INC PRT/INC 1383800200009 6512.1 0.4 144. -04 10. -04 1383800200010 6480.1 0.7 3. -041383800200011 6456.9 0.4 205. -04 13. -04 1383800200012 6424.5 0.7 2. -041383800200013 6334.5 0.7 5. -041383800200014 6319.2 0.4 304. -04 18. -04 1383800200015 6276.0 0.4 105. -04 6. -04 1383800200016 6264.7 0.6 17. -04 2. -04 1383800200017 6252.6 6250.8 0.6 513. -04 29. -04 1383800200018 6209.7 0.7 4. -041383800200019 6187.5 6183.2 0.7 4. -041383800200020 6173.8 0.8 2. -041383800200021 6165.2 0.6 24. -04 3. -04 1383800200022 6149.2 0.4 107. -04 8. -04 1383800200023 6143.9 0.6 29. -04 3. -04 1383800200024 6131.4 0.7 9. -04 1. -04 1383800200025 6127.7 0.7 3. -04 1. -04 1383800200026 6109.9 0.7 17. -04 4. -04 1383800200027 6106.2 0.5 62. -04 5. -04 1383800200028 ENDDATA 21 0 1383800200029 ENDSUBENT 28 0 1383800299999 ENDENTRY 2 0 1383899999999