ENTRY 31869 20250424 32193186900000001 SUBENT 31869001 20250424 32193186900100001 BIB 13 32 3186900100002 TITLE Investigation of the Cd-ratio difference method to 3186900100003 measure the cross section of 186W(n,g)187W at the 3186900100004 Jordan research and training reactor 3186900100005 AUTHOR (K.Al-Khasawneh, A.Al-Mohammad, Y.Senjlawi, M.Suaifan, 3186900100006 Y.Almusallam) 3186900100007 INSTITUTE (3JORJOR) Jordan Research and Training Reactor 3186900100008 REFERENCE (J,ANE,205,110579,2024) 3186900100009 FACILITY (REAC,3JORJOR) Jordan Research and Training Reactor 3186900100010 INC-SOURCE (REAC) Irradiated at two holes (NAA1 and NAA2) 3186900100011 SAMPLE 1 NAA1 with Cd: 3186900100012 W 318.22 mg, Au 11.48 mg, Zr 12.56 mg 3186900100013 NAA1 without Cd: 3186900100014 W 351.40 mg, Au 11.84 mg, Zr 11.83 mg 3186900100015 2 NAA2: with Cd 3186900100016 W 226.58 mg, Au 9.28 mg, Zr 8.50 mg 3186900100017 NAA2: without Cd 3186900100018 W 224.44 mg, Au 8.56 mg, Zr 11.50 mg 3186900100019 DETECTOR (HPGE) Relative efficiency of 40%, resolution of 3186900100020 1.85 keV at 1.33 MeV, calibrated by a mixed-point 3186900100021 source (Am-241, Cd-109, Ce-139, Co-57, Co-60, Cs-137, 3186900100022 Sn-113, Sr-85, Y-88, Cr-51) 3186900100023 DECAY-DATA (74-W-187,1.00D,DG,479.,0.266) 3186900100024 METHOD Thermal flux and epithermal flux in the Hogdahl 3186900100025 convention determined by irradiation of Au and Zr 3186900100026 foils with and without Cd filters. 3186900100027 (ACTIV) Irradiated for 30 min for each irradiation 3186900100028 (GSPEC) Cooled for 24 h and counted for 2 h 3186900100029 ERR-ANALYS (ERR-S) total number of counts under the peak 3186900100030 (ERR-SYS) efficiencies, decay intensities, half-lives, 3186900100031 cross section values 3186900100032 STATUS (TABLE,,K.Al-Khasawneh+,J,ANE,205,110579,2024) Table 5 3186900100033 HISTORY (20250424C) On 3186900100034 ENDBIB 32 0 3186900100035 NOCOMMON 0 0 3186900100036 ENDSUBENT 35 0 3186900199999 SUBENT 31869002 20250424 32193186900200001 BIB 3 6 3186900200002 REACTION 1(74-W-186(N,G)74-W-187,,SIG) 3186900200003 2(74-W-186(N,G)74-W-187,,SIG) 3186900200004 INC-SPECT 1 NAA1: phi(thermal)/phi(epi)~65.6 3186900200005 2 NAA2: phi(thermal)/phi(epi)~775 3186900200006 SAMPLE (74-W-186,NAT=0.2842) 3186900200007 High density natural tungsten powder (99.99%) 3186900200008 ENDBIB 6 0 3186900200009 COMMON 1 3 3186900200010 EN 3186900200011 EV 3186900200012 0.0253 3186900200013 ENDCOMMON 3 0 3186900200014 DATA 6 1 3186900200015 DATA 1ERR-S 1ERR-SYS 1DATA 2ERR-S 2ERR-SYS 23186900200016 B B B B B B 3186900200017 39.56 0.69 2.58 32.17 3.72 2.00 3186900200018 ENDDATA 3 0 3186900200019 ENDSUBENT 18 0 3186900299999 SUBENT 31869003 20250424 32193186900300001 BIB 4 14 3186900300002 REACTION 1(74-W-186(N,G)74-W-187,,RI) 3186900300003 2(74-W-186(N,G)74-W-187,,RI) 3186900300004 INC-SPECT 1 NAA1: phi(thermal)/phi(epi)~65.6 3186900300005 2 NAA2: phi(thermal)/phi(epi)~775 3186900300006 SAMPLE (74-W-186,NAT=0.2842) 3186900300007 High density natural tungsten powder (99.99%) 3186900300008 COMMENT By authors: 3186900300009 The Cd cover absorbed thermal neutrons was not 3186900300010 sufficient to measure the resonance integral 3186900300011 accurately because the 186 W has a resonance peak 3186900300012 around 18.83 eV which overlaps with the 113Cd 3186900300013 resonance peak (18.4 eV), namely epithermal neutrons 3186900300014 around 18.4 eV was absorbed strongly by the Cd-filter 3186900300015 rather than by the 186W. 3186900300016 ENDBIB 14 0 3186900300017 COMMON 1 3 3186900300018 EN-MIN 3186900300019 EV 3186900300020 0.55 3186900300021 ENDCOMMON 3 0 3186900300022 DATA 6 1 3186900300023 DATA 1ERR-S 1ERR-SYS 1DATA 2ERR-S 2ERR-SYS 23186900300024 B B B B B B 3186900300025 113.93 8.20 16.87 69.35 26.63 29.69 3186900300026 ENDDATA 3 0 3186900300027 ENDSUBENT 26 0 3186900399999 ENDENTRY 3 0 3186999999999