ENTRY 30835 20171006 31803083500000001 SUBENT 30835001 20171006 31803083500100001 BIB 11 39 3083500100002 TITLE Thermal neutron capture cross section and resonance 3083500100003 integral of the 139La(n,g)140La reaction 3083500100004 AUTHOR (V.D.Nguyen, D.K.Pham, T.T.Kim, T.H.Nguyen, G.N.Kim, 3083500100005 S.C.Yang, Y.S.Cho, T.Y.Song, Y.O.Lee, S.G.Shin, 3083500100006 M.H.Cho, M.W.Lee) 3083500100007 INSTITUTE (3VN IPH,3KORKNU,3KORKAE,3KORPUE,3KORDRM) 3083500100008 REFERENCE (J,NIM/B,335,1,2014) 3083500100009 FACILITY (LINAC,3KORPUE) Pohang Neutron Facility 3083500100010 INC-SOURCE (PHOTO) Ta(g,n) photonuclear reaction 3083500100011 SAMPLE (57-LA-139,NAT=0.999119) 3083500100012 Natural lanthanum metallic foil 3083500100013 - Size: 12 x 12 mm 3083500100014 - Thickness: 0.1 mm 3083500100015 - Weight: 0.0955 g, 0.0981 g 3083500100016 - Purity: 99.9% 3083500100017 Natural Au foil 3083500100018 - Siza: 12 x 12 mm 3083500100019 - Thickness: 0.1 mm 3083500100020 - Weight: 0.3173 g, 0.3082 g 3083500100021 - Purity: 99.95% 3083500100022 Natural In for the neutron flux monitoring 3083500100023 - Size: 12 x 12 mm 3083500100024 - Thickness: 0.05 mm 3083500100025 - Weight: 0.0505 g, 0.0558 g, 0.0556 g, 0.0534 g, 3083500100026 0.0565 g, 0.0569 g 3083500100027 - Purity: 99.99% 3083500100028 The La and Au foils were irradiated with and without 3083500100029 a Cd cover of 0.5 mm thickness. 3083500100030 METHOD (ACTIV) Irradiated for 140 minute 3083500100031 (GSPEC) Measuring times for gamma-ray spectra varied 3083500100032 from few 10 min to some hours depending on the 3083500100033 statistics of the gamma-ray peaks of interest 3083500100034 DETECTOR (HPGE) Energy resolution of 1.8 keV FWHM at 1332.5 keV 3083500100035 peak of 60Co and detection efficiency of 20% at 3083500100036 1332.5 keV relative to a 3 inch diameter and 3 inch 3083500100037 length NaI(Tl) detector 3083500100038 STATUS (APRVD) Approved by G.N.Kim (2015-09-02) 3083500100039 HISTORY (20150902C) S.C.Yang 3083500100040 (20171006U) VS. Corrections in ERR-ANALYS in 002 3083500100041 ENDBIB 39 0 3083500100042 NOCOMMON 0 0 3083500100043 ENDSUBENT 42 0 3083500199999 SUBENT 30835002 20171006 31803083500200001 BIB 8 24 3083500200002 REACTION (57-LA-139(N,G)57-LA-140,,SIG) 3083500200003 DECAY-DATA (57-LA-140,1.67855D,DG,328.762,0.203, 3083500200004 DG,487.021,0.455) 3083500200005 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 3083500200006 DECAY-MON (79-AU-198-G,2.6947D,DG,411.80205,0.9562) 3083500200007 MONIT-REF (,S.F.Mughabghab,R,INDC(NDS)-440,2003) 3083500200008 ERR-ANALYS (ERR-T) Total uncertainty: 3.9% 3083500200009 (ERR-1) Geometry, La (0.25%)3083500200010 (ERR-2) Detection efficiency, La (2.42%)3083500200011 (ERR-3) Mass (foil weight), La (0.10%)3083500200012 (ERR-4) Half-life, La (0.007%)3083500200013 (ERR-5) Gamma-ray intensity, La (1.30%)3083500200014 (ERR-6) Thermal neutron self-shielding, La (0.35%)3083500200015 (ERR-7) Coincidence summing effect, La (0.50%)3083500200016 (ERR-8,,,U) Counting statistics, La (0.8%)3083500200017 (ERR-9) Geometry, Au (0.25%)3083500200018 (ERR-10) Detection efficiency, Au (2.42%)3083500200019 (ERR-11) Mass (foil weight), Au (0.10%)3083500200020 (ERR-12) Half-life, Au (0.01%)3083500200021 (ERR-13) Thermal neutron self-shielding, Au (0.55%)3083500200022 (ERR-14,,,U)Counting statistics, Au (0.5%)3083500200023 (MONIT-ERR) Reference thermal cross section, Au (0.09%)3083500200024 STATUS (TABLE) Table 6 of Nucl.Instrum.Meth.B,335,1,2014 3083500200025 HISTORY (20171006U) VS. Corrections in ERR-ANALYS. 3083500200026 ENDBIB 24 0 3083500200027 COMMON 14 9 3083500200028 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 3083500200029 ERR-7 ERR-8 ERR-9 ERR-10 ERR-11 ERR-12 3083500200030 ERR-13 ERR-14 3083500200031 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3083500200032 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3083500200033 PER-CENT PER-CENT 3083500200034 0.25 2.42 0.10 0.007 1.30 0.35 3083500200035 0.50 0.8 0.25 2.42 0.10 0.01 3083500200036 0.55 0.5 3083500200037 ENDCOMMON 9 0 3083500200038 DATA 5 1 3083500200039 EN DATA ERR-T MONIT MONIT-ERR 3083500200040 EV B B B B 3083500200041 0.0253 9.16 0.36 98.65 0.09 3083500200042 ENDDATA 3 0 3083500200043 ENDSUBENT 42 0 3083500299999 SUBENT 30835003 20150810 31733083500300001 BIB 9 25 3083500300002 REACTION (57-LA-139(N,G)57-LA-140,,RI) 3083500300003 DECAY-DATA (57-LA-140,1.67855D,DG,328.762,0.203, 3083500300004 DG,487.021,0.455) 3083500300005 MONITOR ((MONIT1)79-AU-197(N,G)79-AU-198,,RI) 3083500300006 ((MONIT2)57-LA-139(N,G)57-LA-140,,SIG) 3083500300007 ANALYSIS The alpha-shape factor was experimentally determined 3083500300008 by using the dual monitor method with the measured Cd 3083500300009 ratios of the 197Au(n,g)198Au and 186W(n,g)187W 3083500300010 reactions. It was derived from the Eq. (4) of 3083500300011 Nucl.Instrum.Meth.B,335,1,2014. 3083500300012 ASSUMED (ASSUM,79-AU-197(N,G)79-AU-198,,SIG) 3083500300013 DECAY-MON (79-AU-198-G,2.6947D,DG,411.80205,0.9562) 3083500300014 REL-REF (R,,S.F.Mughabghab,R,INDC(NDS)-440,2003) 3083500300015 Au thermal cross section and resonance integral given 3083500300016 ERR-ANALYS (ERR-T) Total uncertainty: 5.9% 3083500300017 (ERR-1) Epithermal neutron self-shielding, La (1.15%)3083500300018 (ERR-2) Thermal neutron self-shielding, La (0.35%)3083500300019 (ERR-3) Coincidence summing effect, La (0.75%)3083500300020 (ERR-4) Cadmium ratio, La (1.24%)3083500300021 (ERR-5) Alpha-shape factor, La (3.25%)3083500300022 (ERR-6) Epithermal neutron self-shielding,Au (1.8%)3083500300023 (ERR-7) Thermal neutron self-shielding, Au (0.55%)3083500300024 (ERR-8) Cadmium ratio, Au (1.45%)3083500300025 (ERR-9) Alpha-shape factor, Au (3.5%)3083500300026 STATUS (TABLE) Table 7 of Nucl.Instrum.Meth.B,335,1,2014 3083500300027 ENDBIB 25 0 3083500300028 COMMON 11 6 3083500300029 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 3083500300030 ERR-7 ERR-8 ERR-9 ASSUM ASSUM-ERR 3083500300031 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3083500300032 PER-CENT PER-CENT PER-CENT B B 3083500300033 1.15 0.35 0.75 1.24 3.25 1.8 3083500300034 0.55 1.45 3.5 98.65 0.09 3083500300035 ENDCOMMON 6 0 3083500300036 DATA 9 1 3083500300037 EN-MIN DATA ERR-T EN-NRM1-MN MONIT1 MONIT1-ERR 3083500300038 EN-NRM2 MONIT2 MONIT2-ERR 3083500300039 EV B B EV B B 3083500300040 EV B B 3083500300041 0.55 11.64 0.69 0.55 1550. 28. 3083500300042 0.0253 9.16 0.36 3083500300043 ENDDATA 6 0 3083500300044 ENDSUBENT 43 0 3083500399999 ENDENTRY 3 0 3083599999999