ENTRY 22648 20011227 00002264800000001 SUBENT 22648001 20011227 00002264800100001 BIB 13 40 2264800100002 TITLE Measurement of KeV-Neutron Capture Cross Section 2264800100003 And Capture Gamma-Ray Spectra of 167Er 2264800100004 AUTHOR (A.K.M.HARUN-AR-RASHID,T.-I.RO, M.IGASHIRA, T.OHSAKI) 2264800100005 INSTITUTE (2JPNTIT) Igashira, Ohsaki, Ro 2264800100006 (3BANBAN) Harun-Ar-Rashid. Department of Physics, 2264800100007 The University of Chittagong, Bangla Desh 2264800100008 REFERENCE (J,NST,37,(5),421,200005) Main Reference 2264800100009 FACILITY (VDGT,2JPNTIT) The 3.2 MV PELLETRON Accelerator of the 2264800100010 Research Laboratory For Nuclear Reactors at the Tokyo 2264800100011 Institute of Technology. 2264800100012 INC-SOURCE (P-LI7) 2264800100013 INC-SPECT .Proton Energy was Set to 1.905 MeV, 24 KeV Above 2264800100014 The Threshold Energy of the 7Li(P,N)7be Reaction - 2264800100015 In the 10-90 Neutron Energy Range, 2264800100016 And to 2.3 MeV to Generate Neutrons with Average 2264800100017 Energy 550 KeV. Proton Pulse Repetition Rate is 2264800100018 2 Mhz and 4 Mhz 2264800100019 METHOD (TOF) 2264800100020 DETECTOR (NAICR) Na-I(TL) Anti-Compton Spectrometer 2264800100021 (GLASD) Li-6 Glass Detector For Neutron Flux 2264800100022 Monitoring 2264800100023 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 2264800100024 ADD-RES (G-SPC) 2264800100025 SAMPLE .Standard Gold Sample of Pure Metal, Chemical Purity 2264800100026 99.999%, Net Weight 12.04 Gram,Thickness 2 mm or 2264800100027 11.7E-3 Niclei/Barn, Diameter 20 mm 2264800100028 .Oxide Powder Erbium Sample Er2-O3 Contained in a 2264800100029 Graphite Case. Chemical Purity is More Than 99.58%, 2264800100030 Weight of Powder is 1.140 Gram, Net Weight 0.950+- 2264800100031 0.002 Gram, Water Content 0.0. Isotopic Composition - 2264800100032 Er-167 Content is 95.60%, Er-166 Content is 1.14%, 2264800100033 Er-168 Content is 3.08%, Er-170 Content is 0.18%, 2264800100034 Er-162, Er-164 Content is Less Than 0.06% For Each. 2264800100035 .Impurities - Gadolinium 0.07%, Terbium 0.06%, 2264800100036 Lutetium 0.06%, Thulium 0.05%, Dysprosium Less 0.05%, 2264800100037 Ytterbium Less 0.04%, Holmium 0.03% 2264800100038 .Outer Diameter of Graphite Case is 24 mm, 2264800100039 Outer Thickness of Graphite Case is 4.2 mm 2264800100040 HISTORY (20011226C) + + Compiled by S.M. 2264800100041 (20011227U) Last checking has been done. 2264800100042 ENDBIB 40 0 2264800100043 NOCOMMON 0 0 2264800100044 ENDSUBENT 43 0 2264800199999 SUBENT 22648002 20011227 00002264800200001 BIB 4 21 2264800200002 REACTION (68-ER-167(N,G)68-ER-168,,SIG,,SPA) Averaged Over 2264800200003 Neutron Spectrum Width 2264800200004 CORRECTION .Corrections were Made For Self-Shilding and Multiple 2264800200005 Scattering of Neutrons in the Sample, For Gamma-Ray 2264800200006 Scattering and Absorption in Sample, For the Depen- 2264800200007 Dence of Gamma-Ray Detector Efficiency on Gamma-Ray 2264800200008 Source Position, For the Effect of Pulse Height Dis- 2264800200009 Crimination, For Chemical and Isotopic Impurity of 2264800200010 Sample, For the Dead Time, For Attenuation of Neutron 2264800200011 Monitor Counts in Li-6 Glass Detector 2264800200012 ERR-ANALYS (ERR-T) Total Error 2264800200013 (ERR-S) Max Statistical Error 2264800200014 (ERR-1) Max Error Due to in Targert Nuclei Number 2264800200015 (ERR-2) Error of Weighing Function of Gamma-Ray 2264800200016 Spectrometer 2264800200017 (ERR-3) Error of Extrapolation Pulse-Height Spectrum 2264800200018 Below the Discrimination Level 2264800200019 (ERR-4) Error of Self-Shielding and Multiple 2264800200020 Scattering 2264800200021 (MONIT-ERR) Error of the Standard Cross Section 2264800200022 STATUS . From Table 4 of Main Reference 2264800200023 ENDBIB 21 0 2264800200024 COMMON 6 3 2264800200025 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 MONIT-ERR 2264800200026 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2264800200027 2. 1. 1. 2. 2. 3.2264800200028 ENDCOMMON 3 0 2264800200029 DATA 7 5 2264800200030 EN-MEAN -EN-RSL +EN-RSL EN-RSL-FW DATA ERR-T 2264800200031 ERR-T 2264800200032 KEV KEV KEV KEV B B 2264800200033 PER-CENT 2264800200034 22. 7. 3. 1.912 0.082264800200035 4.2 2264800200036 31. 6. 4. 1.513 0.0632264800200037 4.2 2264800200038 44. 9. 11. 1.219 0.052264800200039 4.1 2264800200040 65. 10. 25. 1.028 0.0412264800200041 4. 2264800200042 546. 165. 0.183 0.0082264800200043 4.2 2264800200044 ENDDATA 14 0 2264800200045 ENDSUBENT 44 0 2264800299999 SUBENT 22648003 20011227 00002264800300001 BIB 3 5 2264800300002 REACTION (68-ER-167(N,G)68-ER-168,PAR,MLT,G,SPA) Gamma 2264800300003 Multiplicity Per One Neutron Capture Averaged Over 2264800300004 Neutron Spectrum Width 2264800300005 EN-SEC (E-MIN,G) 2264800300006 STATUS . From Table 5 of Main Reference 2264800300007 ENDBIB 5 0 2264800300008 COMMON 1 3 2264800300009 E-MIN 2264800300010 MEV 2264800300011 0.6 2264800300012 ENDCOMMON 3 0 2264800300013 DATA 3 2 2264800300014 EN-MEAN DATA ERR-T 2264800300015 MEV PRT/INC PRT/INC 2264800300016 0.045 3.29 0.119 2264800300017 0.55 3.45 0.143 2264800300018 ENDDATA 4 0 2264800300019 ENDSUBENT 18 0 2264800399999 ENDENTRY 3 0 2264899999999