ENTRY 20873 20201215 22962087300000001 SUBENT 20873001 20201215 22962087300100001 BIB 16 53 2087300100002 TITLE Retardation of single-particle E1 transitions from 2087300100003 the 622 keV broad d-wave neutron resonance in 9Be 2087300100004 AUTHOR (H.Kitazawa, M.Igashira,S.Shibata, K.Tanaka, 2087300100005 H.Takakuwa, K.Masuda) 2087300100006 INSTITUTE (2JPNTIT) 2087300100007 REFERENCE (J,NP/A,575,72,1994) Main reference, data are 2087300100008 partly given and experimental details described 2087300100009 (C,94BOLOGN,,169,1994) full dataset is given 2087300100010 (S,JAERI-C-95-008,233,1995) Experimental details 2087300100011 described and data of Be and part of the Si-28 data2087300100012 REL-REF (O,22381001,H.Kitazawa+,J,PR/C,46,2364,1992) Partial 2087300100013 radiative width of 24Mg, 28Si, 32S 2087300100014 (O,22170001,S.Raman+,J,PR/C,41,458,1990) Partial 2087300100015 radiative width of 13C 2087300100016 (O,22263001,M.Igashira+,J,NP/A,536,285,1992) Partial 2087300100017 radiative width of 16O 2087300100018 FACILITY (VDGT,2JPNTIT) 3.2 MV Pelletron accelerator of the 2087300100019 Research Lab. of Nuclear Reactors 2087300100020 INC-SOURCE (P-LI7) Proton beam current is 10 uA, 2 MHz 2087300100021 repetition rate 2087300100022 SAMPLE The capture sample was a beryllium metal disk 2087300100023 (weight: 49 g, purity: 99.5%) , size was 60 mm in 2087300100024 diameter and 9.3 mm (0.115 atoms/barn) in thickness. 2087300100025 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 2087300100026 MONIT-REF (,S.F.Mughabghab,3,ENDF/B-V,1379,1979) 2087300100027 METHOD (TOF,PHWT) The capture cross section of 9Be was 2087300100028 determined by normalizing the capture gamma-ray yield 2087300100029 of 9Be to that of 197Au, which was related to the 2087300100030 capture cross section of 197Au by means of a 2087300100031 pulse-height weighting technique. Therefore, 2087300100032 measurements were performed alternately between the 2087300100033 beryllium and gold sample runs. Both data were 2087300100034 normalized by neutron counts of another 6Li-glass 2087300100035 scintillation detector installed at an angle of 45. 2087300100036 degr. to the proton-beam direction. 2087300100037 DETECTOR (NAICR) A 76-mm diam. by 152-mm NaI(Tl) detector, 2087300100038 which was centered in a 254-mm diam. by 280-mm 2087300100039 NaI(Tl) hollow anti-Compton detector surrounded by a 2087300100040 heavy shield. 2087300100041 (GLASD) A 102-mm diam. by 6.4-mm Li-glass scintillation2087300100042 detectors for neutron flux monitoring 2087300100043 CORRECTION Corrections for neutron's multiple scattering, 2087300100044 neutron's self-shielding and gamma-ray attenuation 2087300100045 in samples (10%) were made 2087300100046 ERR-ANALYS (ERR-T) The error of the widths includes: 2087300100047 (ERR-S,10.,50.) the statistical error 2087300100048 (ERR-1,3.,9.) the error of the detection efficiency of 2087300100049 gamma-rays, 2087300100050 (ERR-2) the error of the total capture yield of gold 2087300100051 (ERR-3) the error of the capture cross section of gold 2087300100052 COMMENT Secondary gamma-energies, spins J and momentums l 2087300100053 are taken from the literature 2087300100054 HISTORY (20201215T) SD: Part of 22381 Entry. 2087300100055 ENDBIB 53 0 2087300100056 NOCOMMON 0 0 2087300100057 ENDSUBENT 56 0 2087300199999 SUBENT 20873002 20201215 22962087300200001 BIB 3 3 2087300200002 REACTION (4-BE-9(N,G),PAR,WID) 2087300200003 ASSUMED (ASSUM,4-BE-9(N,EL),,WID) 2087300200004 STATUS (TABLE) Tbl. 2 from Nucl.Phys.,A575(1994)72 2087300200005 ENDBIB 3 0 2087300200006 COMMON 7 6 2087300200007 EN-RES ASSUM SPIN J MOMENTUM L PARITY ERR-2 2087300200008 ERR-3 2087300200009 KEV KEV NO-DIM NO-DIM NO-DIM PER-CENT 2087300200010 PER-CENT 2087300200011 622. 17.5 2.5 2. +1. 5. 2087300200012 5. 2087300200013 ENDCOMMON 6 0 2087300200014 DATA 4 2 2087300200015 E-LVL DATA ERR-T MONIT 2087300200016 KEV EV EV KEV 2087300200017 3368. 0.62 0.06 17.5 2087300200018 5958. 0.11 0.08 2087300200019 ENDDATA 4 0 2087300200020 ENDSUBENT 19 0 2087300299999 ENDENTRY 2 0 2087399999999