ENTRY 31593 20070515 31223159300000001 SUBENT 31593001 20070515 31223159300100001 BIB 13 54 3159300100002 TITLE Measurements of fast neutron capture cross sections 3159300100003 on 63Cu and 186W 3159300100004 AUTHOR (G.D.Kim,H.J.Woo,H.W.Choi,N.B.Kim,T.K.Yang,J.H.Chang, 3159300100005 K.S.Park) 3159300100006 INSTITUTE (3KORKRM,3KORKAE) 3159300100007 (3KORKOR)Ion Beam Application Group, Korea Institute of3159300100008 Geoscience and Mineral Resources, Daejon,305-350, Korea3159300100009 REFERENCE (J,JRN,271,553,2007) 3159300100010 FACILITY (VDGT,3KORKRM) KIGAM 1.7 MV tandem accelerator with 3159300100011 the source of negative ion by cesium sputtering (SNICS)3159300100012 INC-SOURCE (P-T) The TiT thin film target of this experiment 3159300100013 was provided by a company (SODERN) in France. Backing 3159300100014 material was Cu with a thickness of 1.2 mm and a 3159300100015 diameter of 2.54 cm. Ti was deposited on Cu with an 3159300100016 areal density of from 200 to 300 mu-g/cm2 and tritium 3159300100017 was impregnated into Ti. 3159300100018 The control of the beam energy and the stability for 3159300100019 terminal voltage was performed by the resonance of 3159300100020 991+-1 keV in 27Al(p,gamma) and that of 3047+-1 keV 3159300100021 in 16O(alpha,alpha). 3159300100022 METHOD (ACTIV,GSPEC) 3159300100023 (FLUX) Neutron flux was measured by a monitor until the3159300100024 accumulated proton charge reached 20 mC for 63Cu. 3159300100025 MONITOR ((MONIT)79-AU-197(N,G)79-AU-198,,SIG) 3159300100026 Two samples of Au are: 3159300100027 First: purity - 99.99% , weight - 122.84g , diam. - 3159300100028 5.115cm, thickness - 0.315cm, density - 19.282g/cm3, 3159300100029 molecular weight - 196.97g, areal density - 1.7633. 3159300100030 Second: purity - 99.99% , weight - 117.34g , diam. - 3159300100031 5.090cm, thickness - 0.310cm, density - 19.282g/cm3, 3159300100032 molecular weight - 196.97g, areal density - 1.8280. 3159300100033 Cross sections of Au are references without 3159300100034 uncertainties for calculating the cross sections of 3159300100035 63Cu and 186W. These reference data were obtained by 3159300100036 fitting ENDF-6 data about Au(n,gamma) reaction with 3159300100037 polinomial. (Authors comment) 3159300100038 DECAY-MON (79-AU-198,,DG,411.) 3159300100039 DETECTOR (SCIN) The pulse-height spectrum and the pulse-shape 3159300100040 spectrum of the produced neutron were measured by 3159300100041 2"x2" BC-501 liquid scintillation detector. 3159300100042 Other BC-501 liquid scintillation detector is used as 3159300100043 a neutron monitor. 3159300100044 (HPGE) A 2"x2" HP Ge detector was used as a detector 3159300100045 of gamma-rays. 3159300100046 ERR-ANALYS (ERR-S) Statistical error includes the fluctuations of 3159300100047 gamma-ray counts and monitor counts. 3159300100048 (ERR-SYS) Systematic error includes the difference of 3159300100049 the simulated efficiency to the measured efficiency 3159300100050 of HPGe, the uncertainty of areal density of samples, 3159300100051 and the longterm decrease of the tritium areal density 3159300100052 by evaporation on proton bombardments. 3159300100053 STATUS (TABLE) Data were received from Dr. G.D.Kim 3159300100054 (APRVD) Entry approved by Dr. G.D.Kim 3159300100055 HISTORY (20070213C) 3159300100056 ENDBIB 54 0 3159300100057 NOCOMMON 0 0 3159300100058 ENDSUBENT 57 0 3159300199999 SUBENT 31593002 20070515 31223159300200001 BIB 3 5 3159300200002 REACTION (29-CU-63(N,G)29-CU-64,,SIG) 3159300200003 SAMPLE Cu is: purity - 99.99% , weight - 111.85g , diam. - 3159300200004 5.050cm, thickness - 0.604cm, density - 8.92g/cm3, 3159300200005 molecular weight - 63.546g, areal density - 5.3800. 3159300200006 DECAY-DATA (29-CU-64,,AR,511.) 3159300200007 ENDBIB 5 0 3159300200008 COMMON 1 3 3159300200009 ERR-S 3159300200010 PER-CENT 3159300200011 0.2 3159300200012 ENDCOMMON 3 0 3159300200013 DATA 4 4 3159300200014 EN DATA ERR-SYS MONIT 3159300200015 MEV MB MB MB 3159300200016 2.0150 5.9 0.2 53.4 3159300200017 1.8130 6.2 0.3 59.6 3159300200018 1.6110 7.8 0.3 66.5 3159300200019 1.4090 8.3 0.3 69.4 3159300200020 ENDDATA 6 0 3159300200021 ENDSUBENT 20 0 3159300299999 SUBENT 31593003 20070515 31223159300300001 BIB 3 5 3159300300002 REACTION (74-W-186(N,G)74-W-187,,SIG) 3159300300003 SAMPLE W is: purity - 99.95% , weight - 223.54g , diam. - 3159300300004 5.015cm, thickness - 0.595cm, density - 19.35g/cm3, 3159300300005 molecular weight - 183.85g, areal density - 3.7299. 3159300300006 DECAY-DATA (74-W-187,,DG,686.) 3159300300007 ENDBIB 5 0 3159300300008 NOCOMMON 0 0 3159300300009 DATA 5 3 3159300300010 EN DATA ERR-SYS ERR-S MONIT 3159300300011 MEV MB MB MB MB 3159300300012 2.2450 31.0 0.2 1.6 41.0 3159300300013 2.0430 30.15 0.2 1.4 51.2 3159300300014 1.6380 30.3 0.3 1.4 65.6 3159300300015 ENDDATA 5 0 3159300300016 ENDSUBENT 15 0 3159300399999 ENDENTRY 3 0 3159399999999