ENTRY 41354 20110629 41534135400000001 SUBENT 41354001 20110629 41534135400100001 BIB 13 43 4135400100002 TITLE Measurements of Neutron Capture Cross Sections of 4135400100003 234-U and 236-U and Fission Cross Section of 236-U. 4135400100004 AUTHOR (G.V.Muradyan, M.A.Voskanyan, L.P.Yastrebova, 4135400100005 V.L.Volkov, O.Ya.Shatrov, V.I.Furman, V.Yu.Konovalov) 4135400100006 INSTITUTE (4RUSKUR) Muradyan, Voskanyan, Yastrebova, Volkov, 4135400100007 Shatrov. Experimental Site 4135400100008 (4ZZZDUB) Furman, Konovalov 4135400100009 REFERENCE ((S,ISINN-7,287,1999)=(S,JINR-E3-99-212,287,1999)) 4135400100010 Main Reference 4135400100011 ((S,ISINN-7,292,1999)=(S,JINR-E3-99-212,292,1999)) 4135400100012 Data For U-234 . 4135400100013 (J,AE,110,(2),100,2011) Data for U-236 confirmed. 4135400100014 (J,AE/T,110,(2),115,2011) Engl.translation of J,AE . 4135400100015 #doi:10.1007/s10512-011-9399-z 4135400100016 FACILITY (LINAC,4RUSKUR) Pulsed Linear Electron Accelerator 4135400100017 'FAKEL', electron pulse duration 60 ns, repetition 4135400100018 frequency 400 Hz 4135400100019 REL-REF (N,,G.V.Muradyan+,J,NSE,90,60,1990) Experimental 4135400100020 details . 4135400100021 METHOD (TOF) Time-of-flight, flight distance 5.2 m 4135400100022 MONITOR (5-B-10(N,A)3-LI-7,,SIG) For neutron flux monitoring 4135400100023 (92-U-236(N,0),,EN)Saturated neutron resonance of 236U 4135400100024 (92-U-235(N,F),PR,NU) 4135400100025 INC-SOURCE (PHOTO) Uranium cylinder of 300 cm length and 20 cm 4135400100026 diameter was used as neutron source 4135400100027 DETECTOR (SCIN) 4pi-detector of 8-section low-background 4135400100028 rectangular fluocarbon scintillator 124*124*450 4135400100029 mm size of each section. 4135400100030 CORRECTION -To shield the scintillator from neutron scattered by 4135400100031 sample, a (N,GAMMA) converter of 16 mm thick 10-B was 4135400100032 placed between sample and detector. 4135400100033 -Measurements without sample and with carbon and lead 4135400100034 samples have been made for correction on background. 4135400100035 -Results have been corrected for neutron self-shielding4135400100036 in sample and neutron multiple scattering. 4135400100037 -Time-of-flight spectra were corrected for miscounts. 4135400100038 ERR-ANALYS Errors are not given 4135400100039 HISTORY (20000317C) + + Compiled at CJD 4135400100040 (20000317U) Last checking has been done. 4135400100041 (20091214U) Two references of ISINN-7 were added. 4135400100042 BIB and COMMON information was added. 4135400100043 (20110629A) Ref. J,AE,(2),100,2011 and Engl.translation4135400100044 were added. 4135400100045 ENDBIB 43 0 4135400100046 NOCOMMON 0 0 4135400100047 ENDSUBENT 46 0 4135400199999 SUBENT 41354002 20110629 41534135400200001 BIB 5 12 4135400200002 REACTION (92-U-236(N,G)92-U-237,,SIG,,AV) Averaged over energy 4135400200003 interval given in data section 4135400200004 SAMPLE -Two identical metallic foil 10 mm diameter enriched 4135400200005 on 236-U to 99.845%. Thickness 9.443E-4 atoms/barn 4135400200006 REL-REF (A,,Yu.A.Adamchuk+,J,AE,65,356,1988) 4135400200007 (D,,A.A.Bergman+,J,YK,1988,(1),396,1988) 4135400200008 ERR-ANALYS Statistical errors < 0.5% for each energy intervals 4135400200009 excluding 10-21.5 eV. 4135400200010 (ERR-SYS,4.) Systematic error < 4.% . 4135400200011 STATUS (TABLE) From Table 1 of S,ISINN-7,287,1999 4135400200012 = Table 1 of J,AE,(2),100,2011 . 4135400200013 (COREL,40987002) Measurement by different detector. 4135400200014 ENDBIB 12 0 4135400200015 NOCOMMON 0 0 4135400200016 DATA 3 10 4135400200017 EN-MIN EN-MAX DATA 4135400200018 EV EV B 4135400200019 100. 200. 14.8 4135400200020 200. 300. 7.89 4135400200021 300. 400. 6.97 4135400200022 400. 500. 6.74 4135400200023 500. 600. 5.55 4135400200024 600. 700. 6.74 4135400200025 700. 800. 5.11 4135400200026 800. 900. 3.46 4135400200027 900. 1000. 4.21 4135400200028 1000. 2000. 2.47 4135400200029 ENDDATA 12 0 4135400200030 ENDSUBENT 29 0 4135400299999 SUBENT 41354003 20110629 41534135400300001 BIB 5 13 4135400300002 REACTION (92-U-236(N,G)92-U-237,,SIG,,EPI) Weighted over 1/En 4135400300003 spectrum capture cross-section within 4135400300004 energy interval given in data section 4135400300005 SAMPLE -Two identical metallic foil 10 mm diameter enriched 4135400300006 on 236-U to 99.845%. Thickness 9.443E-4 atoms/barn 4135400300007 ERR-ANALYS Statistical errors < 0.5% for each energy intervals 4135400300008 excluding 10.0-21.5 eV. 4135400300009 (ERR-SYS,4.) Systematic error < 4.% . 4135400300010 STATUS (TABLE) From Table 2 S,ISINN-7,287,1999. 4135400300011 = Table 2 of J,AE,(2),100,2011 . 4135400300012 (COREL,40987005) Measurement by different detector. 4135400300013 HISTORY (20110629A) AV -> EPI according to the comment of 4135400300014 N.Otsuka (NDS IAEA). 4135400300015 ENDBIB 13 0 4135400300016 NOCOMMON 0 0 4135400300017 DATA 3 8 4135400300018 EN-MIN EN-MAX DATA 4135400300019 EV EV B 4135400300020 4.65 10. 356.1 4135400300021 10. 21.5 0.101 4135400300022 21.5 46.5 38.28 4135400300023 46.5 100. 21.46 4135400300024 100. 215. 16.14 4135400300025 215. 465. 6.14 4135400300026 465. 1000. 5.28 4135400300027 1000. 2150. 2.56 4135400300028 ENDDATA 10 0 4135400300029 ENDSUBENT 28 0 4135400399999 SUBENT 41354004 20110629 41534135400400001 BIB 6 13 4135400400002 REACTION (92-U-236(N,F),,SIG,,EPI) Weighted fission cs 4135400400003 over energy interval given in data section 4135400400004 SAMPLE -Two identical metallic foil 10 mm diameter enriched 4135400400005 on 236-U to 99.845%. Thickness 9.443E-4 atoms/barn 4135400400006 MONITOR ((MONIT)92-U-236(N,F),,WID) 4135400400007 Calibration was done by 5.45 eV resonance of 4135400400008 fission width 0.29 milli-eV. 4135400400009 ERR-ANALYS (DATA-ERR) Accuracy is about 6 %, does not include 4135400400010 normalization error. 4135400400011 STATUS (TABLE) From Table 3 of S,ISINN-7,287,1999 4135400400012 = Table 3 of J,AE,(2),100,2011 . 4135400400013 HISTORY (20110629A) AV -> EPI according to the comment of 4135400400014 N.Otsuka (NDS IAEA). 4135400400015 ENDBIB 13 0 4135400400016 COMMON 3 3 4135400400017 DATA-ERR EN-RES-NRM MONIT 4135400400018 PER-CENT EV MILLI-EV 4135400400019 6. 5.45 0.29 4135400400020 ENDCOMMON 3 0 4135400400021 DATA 4 7 4135400400022 EN-MIN EN-MAX DATA DATA-MAX 4135400400023 EV EV B B 4135400400024 4.65 10. 4.21 4135400400025 10. 21.5 0.001 4135400400026 21.5 46.5 0.56 4135400400027 46.5 100. 0.37 4135400400028 100. 215. 0.28 4135400400029 215. 465. 0.094 4135400400030 465. 1000. 0.085 4135400400031 ENDDATA 9 0 4135400400032 ENDSUBENT 31 0 4135400499999 SUBENT 41354005 20091214 41484135400500001 BIB 4 10 4135400500002 REACTION (92-U-234(N,G)92-U-235,,SIG,,AV) Weighted over 1/En 4135400500003 spectrun capture cross-section within 4135400500004 energy interval given in data section 4135400500005 SAMPLE -Five identical oxide layers 10 mm diameter on 0.03 mm 4135400500006 thick aluminium backings. Enricnment on 234-U 99.84%. 4135400500007 Thickness 88. microgram/cm**2. 4135400500008 ERR-ANALYS Statistical errors < 5% for each energy intervals 4135400500009 excluding 10.0-21.5 eV. 4135400500010 (ERR-SYS) Systematic error about 4.% . 4135400500011 STATUS (TABLE) From Table 1 of S,ISINN-7,292,1999 4135400500012 ENDBIB 10 0 4135400500013 COMMON 1 3 4135400500014 ERR-SYS 4135400500015 PER-CENT 4135400500016 4. 4135400500017 ENDCOMMON 3 0 4135400500018 DATA 3 8 4135400500019 EN-MIN EN-MAX DATA 4135400500020 EV EV B 4135400500021 4.65 10. 676. 4135400500022 10. 21.5 0.25 4135400500023 21.5 46.5 33.3 4135400500024 46.5 100. 31.8 4135400500025 100. 215. 20.1 4135400500026 215. 465. 7.3 4135400500027 465. 1000. 5.7 4135400500028 1000. 2150. 3.7 4135400500029 ENDDATA 10 0 4135400500030 ENDSUBENT 29 0 4135400599999 ENDENTRY 5 0 4135499999999