ENTRY 22263 20201217 22962226300000001 SUBENT 22263001 20201217 22962226300100001 BIB 14 64 2226300100002 TITLE Valence-neutron capture in the 434 keV p3/2-wave 2226300100003 resonance of 16O 2226300100004 AUTHOR (M.Igashira,H.Kitazawa,K.Takaura) 2226300100005 REFERENCE (J,NP/A,536,285,1992) 2226300100006 (C,94BOLOGN,,169,1994) full dataset (see REL-REF) 2226300100007 INSTITUTE (2JPNTIT) 2226300100008 REL-REF (O,22381001,H.Kitazawa+,J,PR/C,46,2364,1992) Partial 2226300100009 radiative width of 24Mg, 28Si, 32S 2226300100010 (O,20873001,H.Kitazawa+,J,NP/A,575,72,1994) Partial 2226300100011 radiative width of 9Be 2226300100012 (O,22170001,S.Raman+,J,PR/C,41,458,1990) Partial 2226300100013 radiative width of 13C 2226300100014 FACILITY (VDGT,2JPNTIT) 3.2 MV Pelletron accelerator of the 2226300100015 Research Lab. of Nuclear Reactors 2226300100016 INC-SOURCE (P-LI7) The machine is pulsed with a pulse width of 2226300100017 1.5 ns FWHM and a repetition rate of 2 MHz. The 2226300100018 average beam currents were 7 and 12 uA at and off 2226300100019 resonance, respectively. 2226300100020 INC-SPECT The neutron spectrum was measured by time-of-flight, 2226300100021 using a Li-6 glass detector. 2226300100022 SAMPLE The target consisted of beryllium-oxide powder, 2226300100023 contained in a case made of acrylic acid resin. The 2226300100024 sample diameter was 5.9 cm and the thickness was 2226300100025 1.5 cm in the resonance experiment and 2.7 cm in the 2226300100026 off-resonance experiment. The sample was placed at a 2226300100027 distance of 15.6 cm from the neutron source. 2226300100028 The absolute number of source neutrons were determined2226300100029 using a gold sample, 5.5 cm in diameter and 0.17 cm 2226300100030 thick. 2226300100031 METHOD (GSPEC,TOF) Three kinds of measurements were performed:2226300100032 capture gamma-ray measurements with the BeO-sample and 2226300100033 with a standard Au-sample, and neutron-spectrum 2226300100034 measurements without sample 2226300100035 DETECTOR (GLASD) Two Li-6 glass scintillator, one located at 2226300100036 3 m from the neutron source and at 7 degrees to the 2226300100037 proton beam direction, was used to measure 2226300100038 the relative average neutron spectrum. 2226300100039 A second Li-6 glass detector, located at 1 m 2226300100040 from the source and at 45 degrees to the proton beam 2226300100041 direction, was used to monitor the number of neutrons 2226300100042 emitted from the source. 2226300100043 (NAICR) Capture gamma-rays were detected with a well- 2226300100044 shielded anti-Compton NaI-Tl detector, placed at 80 cm2226300100045 from the sample and at 125 degrees to the proton beam 2226300100046 direction. A Li-6-hydride shield was inserted in the 2226300100047 collimator. 2226300100048 CORRECTION Corrections were applied to neutron attenuation in 2226300100049 air, for neutron self-shielding in the samples, for 2226300100050 neutron multiple scattering in the samples, for gamma-2226300100051 ray absorption in the samples, and for the dependence 2226300100052 of the gamma-ray detection efficiency on the gamma-ray2226300100053 source position. 2226300100054 ERR-ANALYS (DATA-ERR) The errors given contain the statistical 2226300100055 error, the error of the gamma-ray spectrometer 2226300100056 efficiency, the error of the relative efficiency of 2226300100057 the Li-6 glass detectors, the error of the weighting 2226300100058 function of the gamma-ray spectrometer, the error of 2226300100059 the standard capture cross section of Au-197, and the 2226300100060 errors of the resonance parameters of the 434 keV 2226300100061 resonance. 2226300100062 HISTORY (19940106C) N.O. 2226300100063 (19961030A) * * Corrected by S. Maev * * 2226300100064 (20201217U) SD:Updated to new date formats,lower case. 2226300100065 Ref. added. Small corrections in all Subents. 2226300100066 ENDBIB 64 0 2226300100067 NOCOMMON 0 0 2226300100068 ENDSUBENT 67 0 2226300199999 SUBENT 22263002 20201217 22962226300200001 BIB 6 9 2226300200002 REACTION (8-O-16(N,G)8-O-17,PAR,SIG) 2226300200003 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 2226300200004 MONIT-REF (,S.F.Mughabghab,3,ENDF/B-V,1379,1979) 2226300200005 ANALYSIS (4PI1A) The capture cross sections were obtained by 2226300200006 multiplying the 125 degrees differential cross 2226300200007 sections with 4 pi. 2226300200008 STATUS (TABLE) Table 5 from Nucl.Phys.,A536(1992)285 2226300200009 HISTORY (19961030A) Spin j of resonance added 2226300200010 (20201217U) SD: BIB updated. E-LVL-FIN -> E-LVL. 2226300200011 ENDBIB 9 0 2226300200012 COMMON 3 3 2226300200013 EN EN-RSL-FW DATA-ERR 2226300200014 KEV KEV MICRO-B 2226300200015 280. 70. 30. 2226300200016 ENDCOMMON 3 0 2226300200017 DATA 3 2 2226300200018 E-LVL DATA SPIN J 2226300200019 MEV MICRO-B NO-DIM 2226300200020 0. 30. 2.5 2226300200021 0.87 55. 0.5 2226300200022 ENDDATA 4 0 2226300200023 ENDSUBENT 22 0 2226300299999 SUBENT 22263003 20201217 22962226300300001 BIB 3 5 2226300300002 REACTION (8-O-16(N,G),PAR,WID) 2226300300003 STATUS (TABLE) Table 4 from Nucl.Phys.,A536(1992)285 2226300300004 HISTORY (19961030A) Data heading introduced. Spin j added 2226300300005 En replaced by En-res 2226300300006 (20201217U) SD: STATUS updated. E-LVL-FIN -> E-LVL. 2226300300007 ENDBIB 5 0 2226300300008 COMMON 3 3 2226300300009 EN-RES EN-RSL-FW DATA-ERR 2226300300010 KEV KEV EV 2226300300011 434. 65. 0.35 2226300300012 ENDCOMMON 3 0 2226300300013 DATA 3 2 2226300300014 E-LVL DATA SPIN J 2226300300015 MEV EV NO-DIM 2226300300016 0. 1.80 2.5 2226300300017 0.87 1.85 0.5 2226300300018 ENDDATA 4 0 2226300300019 ENDSUBENT 18 0 2226300399999 ENDENTRY 3 0 2226399999999