ENTRY 22652 20171109 22672265200000001 SUBENT 22652001 20171109 22672265200100001 BIB 18 80 2265200100002 TITLE Measurements of keV-neutron capture cross sections 2265200100003 for 164-Dy. 2265200100004 AUTHOR (G.N.Kim, Y.S.Lee, I.S.Ko, M.H.Cho, W.Namkung, D.W.Lee,2265200100005 H.D.Kim, Y.H.Kim, T.I.Ro, Y.K.Min, J.S.Moon, 2265200100006 M.Igashira, S.Mizuno, T.Ohsaki, S.Y.Lee) 2265200100007 INSTITUTE (2JPNTIT) Igashira, Mizuno, Ohsaki, Sam Yol Lee, 2265200100008 Research Lab. For Nuclear Reactors 2265200100009 (3KORPUE) G.Kim, Y.Lee, I.S.Ko, M.-H.Cho, W.Namkung 2265200100010 (3KORPNU) D.Lee, H.Kim, Y.Kim, Pusan National 2265200100011 University, 2265200100012 T.-I.Ro, Y.Min, J.Moon, Dongu University 2265200100013 REFERENCE (J,ANE,28,1549,2001) Main Reference. 2265200100014 (S,ISINN-8,57,200005) First author D.W.Lee. 2265200100015 (C,2002BRUSS,,605,2002) same data for Dy-164. 2265200100016 REL-REF (N,22482001,S.Mizuno+,J,NST,36,(6),493,199906) 2265200100017 Experimental and data analysis details. 2265200100018 FACILITY (VDGT,2JPNTIT) The 3.2-MV PELLETRON Accelerator of the 2265200100019 Research Laboratory for Nuclear Reactors at the Tokyo 2265200100020 Institute of Technology. 2265200100021 INC-SOURCE (P-LI7) Lithium target bombarded by 1.5 ns bunched 2265200100022 proton beam. For neutron energies 10-90 keV proton 2265200100023 energy is 1.903 MeV (22 keV above threshold energy of 2265200100024 P-Li7 reaction), pulse repetition rate 4 MHz, beam 2265200100025 current near 9 micro-A. 2265200100026 INC-SPECT .Broad neutron spectrum measured by TOF Method 2265200100027 PART-DET (G,N) 2265200100028 DETECTOR (NAICR) Anti-Compton Na-I(Tl) spectrometer. Main 2265200100029 detector 15.2 cm diameter by 20.3 cm long was centered2265200100030 in a 33.0 cm outer diameter by 35.6 cm NaI(Tl) hollow 2265200100031 Compton-suppression detector - for gamma detection. 2265200100032 Energy resolution of the main detector is 7% at 0.662 2265200100033 MeV and time resolution is 4.0 ns for 0.511 MeV gamma.2265200100034 (GLASD) Li-6 glass scintillation detector for neutron 2265200100035 energy and flux monitoring. 5 mm diameter * 5 mm 2265200100036 thick Li-6 detector located 30cm from neutron source2265200100037 at 2.4 degree angle with respect to proton beam 2265200100038 direction was used for 10-90 keV region . 2265200100039 METHOD (TOF) Time-of-flight. 2265200100040 TOF spectra were observed for Dy, Au and blank by 2265200100041 gamma-ray spectrometer. 2265200100042 (PHD) Pulse-height discrimination 2265200100043 (SITA) Single-target irradiation 2265200100044 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 2265200100045 MONIT-REF (,P.G.Young,3,ENDF/B-VI.1,7925,1991) 2265200100046 ADD-RES (G-SPC) 2265200100047 SAMPLE .Gold sample for monitor, metallic disk, chemical 2265200100048 purity 99.99%, weight 3.4274 gram, thickness 1.0 mm, 2265200100049 diameter 20.0 mm. 2265200100050 .Metallic dysprosium disk, weight 0.3268 gram, 2265200100051 chemical purity 98.45% thickness 0.2 mm, diameter 2265200100052 15.0 mm . 2265200100053 Dy-156 content is less than 0.01%, 2265200100054 Dy-158 content is less than 1.01%, 2265200100055 Dy-160 content is 0.02%, Dy-161 content is 0.15%, 2265200100056 Dy-162 content is 0.35%, Dy-163 content is 1.03%, 2265200100057 Dy-164 content is 98.45% , 2265200100058 CORRECTION .Corrections were made for neutron self-shielding and 2265200100059 multiple scattering in the sample, for gamma-ray 2265200100060 absorption and scattering in sample,for neutron cross-2265200100061 sections employed in calculations., 2265200100062 for dependence of gamma-ray detection efficiency on 2265200100063 gamma-ray source position, for impurities in sample, 2265200100064 for dead time. 2265200100065 Overall correction factors for Dy <1.02, for Au <1.12.2265200100066 ERR-ANALYS (ERR-T) Total Error (about 10 %) composed of partial 2265200100067 ones given below : 2265200100068 (ERR-S) Statistical Error , 2265200100069 (MONIT-ERR) Error of the standard cross-section, 2265200100070 (ERR-1,,1.) Max Error of the target nuclei number 1%, 2265200100071 (ERR-2,4.,6.) Error of the weighting function of the 2265200100072 gamma spectrometer (4%-6%), 2265200100073 (ERR-3) Error of extrapolation of the net capture 2265200100074 gamma-rays below discrimination level, 2265200100075 (ERR-4,1.,2.) Error due to corrections 1%-2%. 2265200100076 HISTORY (20001018C) + + Compiled by S.M. 2265200100077 (20041029U) .Corrected, SM 2265200100078 (20090615A) M.M. Reference ISINN-8,57 was added. 2265200100079 Free text was corrected to be human-readable. 2265200100080 BIB information was added. Errors corrected. 2265200100081 (20171109U) SD: Ref. 2002BRUSS,,605 was added. 2265200100082 ENDBIB 80 0 2265200100083 COMMON 3 3 2265200100084 MONIT-ERR ERR-S ERR-3 2265200100085 PER-CENT PER-CENT PER-CENT 2265200100086 3. 7. 2. 2265200100087 ENDCOMMON 3 0 2265200100088 ENDSUBENT 87 0 2265200199999 SUBENT 22652002 20090615 22142265200200001 BIB 4 8 2265200200002 REACTION (66-DY-164(N,G)66-DY-165,,SIG,,SPA) Averaged over 2265200200003 neutron incident spectrum width in energy bin. 2265200200004 REL-REF (A,22498013,F.Voss+,J,PR/C,59,1154,1999) 2265200200005 STATUS (TABLE) Data from J,ANE,28,1549,2001 . 2265200200006 Table 1 of ISINN-8,57 . 2265200200007 (COREL,22844005) 2265200200008 HISTORY (20041029U) Energy intervals changed to conform 2265200200009 the authors' data 2265200200010 ENDBIB 8 0 2265200200011 NOCOMMON 0 0 2265200200012 DATA 4 7 2265200200013 EN-MIN EN-MAX DATA ERR-T 2265200200014 KEV KEV B B 2265200200015 15. 20. 0.328 0.047 2265200200016 20. 25. 0.249 0.033 2265200200017 25. 30. 0.277 0.024 2265200200018 30. 40. 0.213 0.012 2265200200019 40. 50. 0.186 0.011 2265200200020 50. 60. 0.185 0.011 2265200200021 60. 80. 0.162 0.008 2265200200022 ENDDATA 9 0 2265200200023 ENDSUBENT 22 0 2265200299999 ENDENTRY 2 0 2265299999999