ENTRY 32222 20101208 31483222200000001 SUBENT 32222001 20101208 31483222200100001 BIB 13 32 3222200100002 TITLE Experimental investigations of neutron cross-sections 3222200100003 of tungsten isotope atomic nuclei: radioactive W-181 3222200100004 (T 1/2 =121.2 days) and stable W-180 3222200100005 AUTHOR (P.N.Vorona,O.I.Kalchenko,V.G.Krivenko) 3222200100006 INSTITUTE (4UKRIJD) 3222200100007 REFERENCE (C,2008KYIV,,528,2008)These data were presented at 3222200100008 the NPAE-Kyiv2008 ID# 87-96 3222200100009 FACILITY (REAC,4UKRIJD) Reactor WWR-M 3222200100010 INC-SOURCE (REAC) Reactor WWR-M 3222200100011 METHOD (TOF,TRN)Neutron TOF Spectrometer had the following 3222200100012 parameters: fast chopper with diameter 300 mm, flight 3222200100013 path - 69.74 m, energy resolution 1.0 mcs/m, 0.22 mcs/m3222200100014 and 0.055 mcs/m. 3222200100015 SAMPLE Metal powder of tungsten, enriched with W-180 up to 3222200100016 95.1%, was used to prepare two samples for transmission3222200100017 measurements. Parameters of tungsten-180 samples: 3222200100018 1)weight 2.547g, dimension 2.06x14.87x13.19 mm3; 3222200100019 2)weight 4.338g, dimension 2.06x15.0x23.5 mm3. 3222200100020 Content of other W isotopes in sample was 4.8% for 182W3222200100021 and 0,1% for 184W. The repacked sample (4.338g) was 3222200100022 irradiated in the reactor neutron fluence 4*10e20 n/cm23222200100023 to get the radioactive W-181. 3222200100024 DETECTOR (PROPC) 3222200100025 ANALYSIS (SLA) Analysis and calculations for neutron resonances 3222200100026 were fulfilled using shape method in accordance with 3222200100027 singlelevel Breit-Wigner formalism. 3222200100028 ERR-ANALYS (ERR-S) Only considered the statistical errors for the 3222200100029 measurements because the other sources of uncertainties3222200100030 are negligible. 3222200100031 STATUS (TABLE,APRVD) Approved by O. Kalchenko 3222200100032 HISTORY (20080829C) UKRNDC 3222200100033 (20101208C)OG: Conference code was added 3222200100034 ENDBIB 32 0 3222200100035 NOCOMMON 0 0 3222200100036 ENDSUBENT 35 0 3222200199999 SUBENT 32222002 20080902 31313222200200001 BIB 1 1 3222200200002 REACTION (74-W-180(N,TOT),,SIG) 3222200200003 ENDBIB 1 0 3222200200004 NOCOMMON 0 0 3222200200005 DATA 3 45 3222200200006 EN DATA ERR-S 3222200200007 EV B B 3222200200008 0.0251 49.59804 2.2988 3222200200009 0.0262 45.97724 2.2989 3222200200010 0.0273 45.57643 2.2989 3222200200011 0.0285 43.33563 2.2988 3222200200012 0.0297 46.14882 2.2988 3222200200013 0.0311 44.82802 2.2986 3222200200014 0.0325 42.12721 2.2986 3222200200015 0.0341 41.72441 2.2988 3222200200016 0.0357 40.8596 2.2989 3222200200017 0.0375 41.3758 2.2986 3222200200018 0.0393 40.05699 2.2989 3222200200019 0.0415 40.11019 2.2986 3222200200020 0.0438 38.32938 2.2989 3222200200021 0.0462 39.76658 2.2988 3222200200022 0.0489 37.06277 2.2989 3222200200023 0.0517 36.65997 2.2989 3222200200024 0.0548 36.71816 2.2989 3222200200025 0.0583 36.31336 2.2989 3222200200026 0.0621 34.98855 2.2988 3222200200027 0.0662 34.58575 2.2989 3222200200028 0.0708 33.26494 2.2988 3222200200029 0.0758 32.40014 2.2986 3222200200030 0.0814 32.45833 2.2989 3222200200031 0.0877 31.59353 2.2986 3222200200032 0.0947 32.57172 2.2989 3222200200033 0.103 30.78892 2.2988 3222200200034 0.111 30.84211 2.2989 3222200200035 0.122 29.98131 2.2988 3222200200036 0.133 29.5755 2.2988 3222200200037 0.146 28.7147 2.2988 3222200200038 0.162 27.85289 2.2989 3222200200039 0.18 27.91009 2.2988 3222200200040 0.201 27.50528 2.2988 3222200200041 0.226 26.18448 2.2989 3222200200042 0.256 25.32068 2.2988 3222200200043 0.293 24.45487 2.2989 3222200200044 0.338 25.43307 2.2988 3222200200045 0.394 24.11026 2.2988 3222200200046 0.466 23.70646 2.2988 3222200200047 0.558 22.38265 2.2988 3222200200048 0.682 22.89885 2.2989 3222200200049 0.852 21.57604 2.2988 3222200200050 1.095 20.71324 2.2989 3222200200051 1.458 21.23143 2.2839 3222200200052 2.036 18.53063 2.2989 3222200200053 ENDDATA 47 0 3222200200054 ENDSUBENT 53 0 3222200299999 SUBENT 32222003 20080902 31313222200300001 BIB 1 3 3222200300002 REACTION 1(74-W-180(N,0),,EN) 3222200300003 2(74-W-180(N,G),,WID) 3222200300004 3(74-W-180(N,EL),,WID/RED) 3222200300005 ENDBIB 3 0 3222200300006 NOCOMMON 0 0 3222200300007 DATA 5 5 3222200300008 DATA 1ERR-S 1DATA 2DATA 3ERR-S 3 3222200300009 EV EV MILLI-EV MILLI-EV MILLI-EV 3222200300010 15.88 0.01 70. 2.63 0.03 3222200300011 49.04 0.01 70. 0.75 0.03 3222200300012 62.25 0.03 70. 0.16 0.01 3222200300013 74.70 0.02 70. 3.55 0.09 3222200300014 86.81 0.05 70. 0.50 0.05 3222200300015 ENDDATA 7 0 3222200300016 ENDSUBENT 15 0 3222200399999 SUBENT 32222004 20080902 31313222200400001 BIB 1 3 3222200400002 REACTION 1(74-W-182(N,0),,EN) 3222200400003 2(74-W-182(N,G),,WID) 3222200400004 3(74-W-182(N,EL),,WID/RED) 3222200400005 ENDBIB 3 0 3222200400006 NOCOMMON 0 0 3222200400007 DATA 6 2 3222200400008 DATA 1ERR-S 1DATA 2ERR-S 2DATA 3ERR-S 33222200400009 EV EV MILLI-EV MILLI-EV MILLI-EV MILLI-EV 3222200400010 4.140 0.001 59.3 4.0 0.63 0.03 3222200400011 21.03 0.01 65. 7.59 0.14 3222200400012 ENDDATA 4 0 3222200400013 ENDSUBENT 12 0 3222200499999 SUBENT 32222005 20080902 31313222200500001 BIB 1 3 3222200500002 REACTION 1(74-W-186(N,0),,EN) 3222200500003 2(74-W-186(N,G),,WID) 3222200500004 3(74-W-186(N,EL),,WID/RED) 3222200500005 ENDBIB 3 0 3222200500006 NOCOMMON 0 0 3222200500007 DATA 5 1 3222200500008 DATA 1ERR-S 1DATA 2DATA 3ERR-S 3 3222200500009 EV EV MILLI-EV MILLI-EV MILLI-EV 3222200500010 18.78 0.01 43.8 66.3 1.5 3222200500011 ENDDATA 3 0 3222200500012 ENDSUBENT 11 0 3222200599999 SUBENT 32222006 20080902 31313222200600001 BIB 1 3 3222200600002 REACTION 1(74-W-181(N,0),,EN) 3222200600003 2(74-W-181(N,G),,WID) 3222200600004 3(74-W-181(N,EL),,WID/RED,,G) 3222200600005 ENDBIB 3 0 3222200600006 NOCOMMON 0 0 3222200600007 DATA 6 1 3222200600008 DATA 1ERR-S 1DATA 2ERR-S 2DATA 3ERR-S 33222200600009 EV EV MILLI-EV MILLI-EV MILLI-EV MILLI-EV 3222200600010 3.18 0.01 89. 18. 0.148 0.006 3222200600011 ENDDATA 3 0 3222200600012 ENDSUBENT 11 0 3222200699999 SUBENT 32222007 20080902 31313222200700001 BIB 2 2 3222200700002 REACTION (74-W-180(N,TOT),,RI,,,DERIV) 3222200700003 STATUS (DEP,32222003) 3222200700004 ENDBIB 2 0 3222200700005 NOCOMMON 0 0 3222200700006 DATA 3 1 3222200700007 EN-MIN DATA ERR-S 3222200700008 EV B B 3222200700009 0.5 194.5 6.0 3222200700010 ENDDATA 3 0 3222200700011 ENDSUBENT 10 0 3222200799999 SUBENT 32222008 20080902 31313222200800001 BIB 2 5 3222200800002 REACTION 1(74-W-180(N,TOT),,SIG,,,DERIV) 3222200800003 2(74-W-180(N,G)74-W-181,,SIG,,,DERIV) 3222200800004 STATUS (DEP,32222002)Correction on admixture of 182W(4,8%) in3222200800005 sample was done. It was assumed, total scattering cross3222200800006 section is equal to total scattering cross section. 3222200800007 ENDBIB 5 0 3222200800008 NOCOMMON 0 0 3222200800009 DATA 5 1 3222200800010 EN DATA 1ERR-S 1DATA 2ERR-S 2 3222200800011 EV B B B B 3222200800012 0.0253 46.6 2.3 37.3 2.4 3222200800013 ENDDATA 3 0 3222200800014 ENDSUBENT 13 0 3222200899999 SUBENT 32222009 20080902 31313222200900001 BIB 2 4 3222200900002 REACTION (74-W-181(N,G)74-W-182,,SIG,,,DERIV) 3222200900003 STATUS (DEP,32222006)Cross section in the energy range 0,025- 3222200900004 2,5 eV was calculated using the parameters of the 3222200900005 single resonance. 3222200900006 ENDBIB 4 0 3222200900007 NOCOMMON 0 0 3222200900008 DATA 2 10 3222200900009 EN DATA 3222200900010 EV B 3222200900011 0.0246 5.49 3222200900012 0.030 4.96 3222200900013 0.038 4.43 3222200900014 0.050 3.92 3222200900015 0.068 3.40 3222200900016 0.098 2.88 3222200900017 0.154 2.39 3222200900018 0.273 1.95 3222200900019 0.615 1.66 3222200900020 2.46 10.58 3222200900021 ENDDATA 12 0 3222200900022 ENDSUBENT 21 0 3222200999999 ENDENTRY 9 0 3222299999999