ENTRY 40476 20200311 41864047600000001 SUBENT 40476001 20200311 41864047600100001 BIB 9 40 4047600100002 TITLE The neutron fission cross-section of U-235 and Pu-239 4047600100003 at 2, 24, 55 and 144 keV 4047600100004 AUTHOR (K.D.Zhuravlev,N.I.Kroshkin,L.V.Karin) 4047600100005 INSTITUTE (4RUSNIR) 4047600100006 REFERENCE ((R,YK-22,3,1976)= 4047600100007 (R,INDC(CCP)-105,3,1976)) 4047600100008 ((C,75KIEV,6,67,1975)= 4047600100009 (R,INDC(CCP)-099,(6),67,1975)) Vol. VI 4047600100010 Preliminary data for U-235 and Pu-239 at 2.,24.keV and4047600100011 thermal point. 4047600100012 ((C,77KIEV,3,131,1977)= 4047600100013 (R,INDC(CCP)-118,131,1977)) 4047600100014 Data for U-233 4047600100015 (J,AE,42,56,1977) Issue 1. 4047600100016 (J,SJA,42,62,1977) Engl.translation of AE,42,56,1977 . 4047600100017 #doi:10.1007/BF01119709 4047600100018 FACILITY (REAC,4RUSNIR) Reactor SM-2 4047600100019 INC-SOURCE (REAC) 4047600100020 DETECTOR (FISCH) For FF detection 4047600100021 (IOCH) For alpha-particles detection from B-10(N, 4047600100022 ALPHA)Li-7 reaction used to determine ratio of neutron4047600100023 beam at E to that at thermal energy E0 . 4047600100024 ERR-ANALYS (DATA-ERR) Not specified. 4047600100025 HISTORY (19780708C) Compiled at the Centre 4047600100026 (19870417U) One author name, some keyword codes and 4047600100027 one energy-point in SAN 005 corrected 4047600100028 (19880812U) Pointer '2' in SAN 005 deleted 4047600100029 (20000505A) Corrected at CJD 4047600100030 (20000505U) Last checking has been done. 4047600100031 (20121004A) M.M. Upper -> lower case correction. 4047600100032 BIB information was updated. 4047600100033 Reference J,AE,42,(1),56,1977 and it's Engl.translation4047600100034 were added. Monitors were moved in proper Subents. 4047600100035 Duplications were deleted. 4047600100036 Subent 010 was added. 4047600100037 (20191212U) Refs. INDC(CCP) were added. 4047600100038 Minor correction in Subent 004. 4047600100039 "PART-DET (FF)" was deleted according to a comment from4047600100040 NDS,IAEA. 4047600100041 (20200311A) Subents 002-004 were corrected. 4047600100042 ENDBIB 40 0 4047600100043 NOCOMMON 0 0 4047600100044 ENDSUBENT 43 0 4047600199999 SUBENT 40476002 20200311 41864047600200001 BIB 9 42 4047600200002 REACTION (92-U-235(N,F),,SIG) 4047600200003 SAMPLE First sample .0010 +- 0.0005 % of U-234, 4047600200004 99.9955 +- 0.0100 % of U-235, 4047600200005 .0035 +- 0.0005 % of U-236, 4047600200006 .0005 % of U-238 . 4047600200007 Second sample .98+-0.08 % of U-234, 4047600200008 89.37+-.022 % of U-235, 4047600200009 .206 % of U-236, 4047600200010 9.65+-.02 % of U-238 . 4047600200011 B-10 sample made by vacuum evaporation, of 0.3 mg/cm**24047600200012 thickness on Al backing of 0.1 mm thickness. 4047600200013 METHOD (FNB) Method of scandium (900 mm, for 2.keV), iron 4047600200014 (650mm, for 24 keV) and silicon ( 800 mm for 55 keV, 4047600200015 900mm for 144 keV) filters. 4047600200016 Additional Al (220mm for 24 keV), B-10 (5mm for 55 and4047600200017 144 keV), S (50mm for 24 keV, 250mm for 55 keV), Ti 4047600200018 (10mm for 2 keV, 40mm for 144 keV) filters to increase4047600200019 monochromaticity. 4047600200020 Mn (30mm for 2 keV), Ti (10mm for 24keV, 40mm for 4047600200021 55keV), S(250mm for 144keV) filters were used for 4047600200022 background measurement. 4047600200023 INC-SPECT Monochromatic neutrons neutrons at 2, 24, 55, 144 keV, 4047600200024 obtained by resonance filters. 4047600200025 Energy Neutron beam Background 4047600200026 keV n/cm**2/s % 4047600200027 2. 1.E+7 9. 4047600200028 24. 1.6E+5 10. 4047600200029 55. 1.6E+6 15. 4047600200030 144. 1.E+7 5. 4047600200031 MONITOR ((MONIT)92-U-235(N,F),,SIG) CS for .0253 eV energy 4047600200032 (5-B-10(N,A)3-LI-7,,SIG) 4047600200033 for ratio of fluxes of neutrons of energy En and 4047600200034 thermal energy. 4047600200035 MONIT-REF (,,R,BNL-325,1973) 4047600200036 CORRECTION For sample isotopic content, for deviation of B-10 c-s 4047600200037 from 1/sqrt(E) dependence. 4047600200038 STATUS (TABLE) Table 2 of J.At.En.,v.42,is.1,p.56,1977. 4047600200039 Table 2 of YK-22,p.3,1976. 4047600200040 Table 2 of Conf.Proc.75KIEV,6,67,1975 - prelim. data 4047600200041 for 2., 24. keV (normalized to U-235 thermal c-s of 4047600200042 G.C.Hanna+,J,At.En.Rev.,7,(4),3,1969, 580.2+-1.8 b. 4047600200043 HISTORY (20200311A) B-10(n,a) CS was added in MONITOR. 4047600200044 ENDBIB 42 0 4047600200045 COMMON 3 3 4047600200046 EN-NRM MONIT MONIT-ERR 4047600200047 EV B B 4047600200048 2.53E-02 582.2 1.3 4047600200049 ENDCOMMON 3 0 4047600200050 DATA 3 4 4047600200051 EN DATA DATA-ERR 4047600200052 KEV B B 4047600200053 2. 6.69 0.13 4047600200054 24. 2.26 0.05 4047600200055 55. 1.92 0.04 4047600200056 144. 1.49 0.03 4047600200057 ENDDATA 6 0 4047600200058 ENDSUBENT 57 0 4047600299999 SUBENT 40476003 20200311 41864047600300001 BIB 9 36 4047600300002 REACTION (94-PU-239(N,F),,SIG) 4047600300003 SAMPLE Pu-239 sample of 15 mm diameter of Al backing of 0.1 mm4047600300004 thickness. 4047600300005 B-10 sample made by vacuum evaporation, of 0.3 mg/cm**24047600300006 thickness on Al backing of 0.1 mm thickness. 4047600300007 METHOD (FNB) Method of scandium (900 mm, for 2.keV), iron 4047600300008 (650mm, for 24 keV) and silicon ( 800 mm for 55 keV, 4047600300009 900mm for 144 keV) filters. 4047600300010 Additional Al (220mm for 24 keV), B-10 (5mm for 55 and4047600300011 144 keV), S (50mm for 24 keV, 250mm for 55 keV), Ti 4047600300012 (10mm for 2 keV, 40mm for 144 keV) filters to increase4047600300013 monochromaticity. 4047600300014 Mn (30mm for 2 keV), Ti (10mm for 24keV, 40mm for 4047600300015 55keV), S(250mm for 144keV) filters were used for 4047600300016 background measurement. 4047600300017 INC-SPECT Monochromatic neutrons neutrons at 2, 24, 55, 144 keV, 4047600300018 obtained by resonance filters. 4047600300019 Energy Neutron beam Background 4047600300020 keV n/cm**2/s % 4047600300021 2. 1.E+7 9. 4047600300022 24. 1.6E+5 10. 4047600300023 55. 1.6E+6 15. 4047600300024 144. 1.E+7 5. 4047600300025 MONITOR ((MONIT)94-PU-239(N,F),,SIG) CS for .0253 eV energy 4047600300026 (5-B-10(N,A)3-LI-7,,SIG) 4047600300027 for ratio of fluxes of neutrons of energy En and 4047600300028 thermal energy. 4047600300029 MONIT-REF (,,R,BNL-325,1973) 4047600300030 CORRECTION For sample isotopic content, for deviation of B-10 c-s 4047600300031 from 1/sqrt(E) dependence. 4047600300032 STATUS (TABLE) Table 2 of J.At.En.,v.42,is.1,p.56,1977. 4047600300033 Table 2 of YK-22,p.3,1976. 4047600300034 Table 2 of Conf.Proc.75KIEV,6,67,1975 - prelim. data 4047600300035 for 2., 24. keV (normalized to Pu-239 thermal c-s of 4047600300036 G.C.Hanna+,J,At.En.Rev.,7,(4),3,1969, 741.+-3.76 b. 4047600300037 HISTORY (20200311A) B-10(n,a) CS was added in MONITOR. 4047600300038 ENDBIB 36 0 4047600300039 COMMON 3 3 4047600300040 EN-NRM MONIT MONIT-ERR 4047600300041 EV B B 4047600300042 2.53E-02 742.5 3. 4047600300043 ENDCOMMON 3 0 4047600300044 DATA 3 4 4047600300045 EN DATA DATA-ERR 4047600300046 KEV B B 4047600300047 2. 3.97 .08 4047600300048 24. 1.73 .04 4047600300049 55. 1.58 .03 4047600300050 144. 1.50 .03 4047600300051 ENDDATA 6 0 4047600300052 ENDSUBENT 51 0 4047600399999 SUBENT 40476004 20200311 41864047600400001 BIB 8 39 4047600400002 REACTION 1((94-PU-239(N,F),,SIG)/(92-U-235(N,F),,SIG)) 4047600400003 2((94-PU-239(N,F),,SIG,,,DERIV)/ 4047600400004 (92-U-235(N,F),,SIG,,,DERIV)) 4047600400005 SAMPLE Samples are described in Subents 002, 003. 4047600400006 METHOD (FNB) Method of scandium (900 mm, for 2.keV), iron 4047600400007 (650mm, for 24 keV) and silicon ( 800 mm for 55 keV, 4047600400008 900mm for 144 keV) filters. 4047600400009 Additional Al (220mm for 24 keV), B-10 (5mm for 55 and4047600400010 144 keV), S (50mm for 24 keV, 250mm for 55 keV), Ti 4047600400011 (10mm for 2 keV, 40mm for 144 keV) filters to increase4047600400012 monochromaticity. 4047600400013 Mn (30mm for 2 keV), Ti (10mm for 24keV, 40mm for 4047600400014 55keV), S(250mm for 144keV) filters were used for 4047600400015 background measurement. 4047600400016 INC-SPECT Monochromatic neutrons at 2, 24, 55, 144 keV, 4047600400017 obtained by resonance filters. 4047600400018 Energy Neutron beam Background 4047600400019 keV n/cm**2/s % 4047600400020 2. 1.E+7 9. 4047600400021 24. 1.6E+5 10. 4047600400022 55. 1.6E+6 15. 4047600400023 144. 1.E+7 5. 4047600400024 ANALYSIS 1 This ratio was obtained by direct comparison of 4047600400025 fission event numbers in U-235 and Pu-239 samples and 4047600400026 nuclei numbers in samples . 4047600400027 2 Ratio derived from measured cross sections 4047600400028 ERR-ANALYS (ERR-1) Error of number of nuclei in samples. 4047600400029 STATUS (TABLE) Table 2 of J.At.Energy,v.42,is.1,p.56,1977. 4047600400030 Table 2 (column 5) of rep.YK-22,p.3,1976. 4047600400031 Table 2 of Conf.Proc.75KIEV,v.6,p.67,1975 - 4047600400032 preliminary data for 2., 24. keV - the same values. 4047600400033 2(DEP,40476002) U-235 C-S 4047600400034 (DEP,40476003) Pu-239 C-S 4047600400035 HISTORY (20121003A) M.M. Data for thermal point were deleted 4047600400036 ( they had been moved in Subent 009 in 1998 year). 4047600400037 DATA 2 were added. 4047600400038 (20191212A) Code DERIV was added in REACTION 2 4047600400039 according to a comment of N.Otsuka (NDS,IAEA) . 4047600400040 (20200311U) An misprint in free text was corrected. 4047600400041 ENDBIB 39 0 4047600400042 COMMON 1 3 4047600400043 ERR-1 4047600400044 PER-CENT 4047600400045 1. 4047600400046 ENDCOMMON 3 0 4047600400047 DATA 5 4 4047600400048 EN DATA 1DATA-ERR 1DATA 2DATA-ERR 2 4047600400049 KEV NO-DIM NO-DIM NO-DIM NO-DIM 4047600400050 2. .603 .022 0.593 0.018 4047600400051 24. .785 .035 0.765 0.023 4047600400052 55. .847 .028 0.823 0.026 4047600400053 144. 1.034 .03 1.010 0.030 4047600400054 ENDDATA 6 0 4047600400055 ENDSUBENT 54 0 4047600499999 SUBENT 40476005 20121003 41584047600500001 BIB 10 37 4047600500002 REACTION 1((92-U-233(N,F),,SIG)/(92-U-235(N,F),,SIG)) 4047600500003 2(92-U-233(N,F),,SIG) 4047600500004 SAMPLE U-235 and U-233 samples of active diameter 18 mm on 4047600500005 Al backings of 0.1 mm thickness. 4047600500006 METHOD (FNB) Method of scandium (900 mm, for 2.keV), iron 4047600500007 (650mm, for 24 keV) and silicon ( 800 mm for 55 keV, 4047600500008 900mm for 144 keV) filters. 4047600500009 Additional Al (220mm for 24 keV), B-10 (5mm for 55 and4047600500010 144 keV), S (50mm for 24 keV, 250mm for 55 keV), Ti 4047600500011 (10mm for 2 keV, 40mm for 144 keV) filters to increase4047600500012 monochromaticity. 4047600500013 Mn (30mm for 2 keV), Ti (10mm for 24keV, 40mm for 4047600500014 55keV), S(250mm for 144keV) filters were used for 4047600500015 background measurement. 4047600500016 INC-SPECT Monochromatic neutrons neutrons at 2, 24, 55, 144 keV, 4047600500017 obtained by resonance filters. 4047600500018 Energy Neutron beam Background 4047600500019 keV n/cm**2/s % 4047600500020 2. 1.E+7 9. 4047600500021 24. 1.6E+5 10. 4047600500022 55. 1.6E+6 15. 4047600500023 144. 1.E+7 5. 4047600500024 MONITOR 2((MONIT)92-U-235(N,F),,SIG) 4047600500025 MONIT-REF (40476002,K.D.Zhuravlev+,J,AE,42,(1),56,1977) 4047600500026 ANALYSIS Absolute values of U-233 fission c-s were determined 4047600500027 by measured ratio U-233/U-235 and U-235 fission c-s, 4047600500028 measured by authors, see Subent 002. 4047600500029 ERR-ANALYS (ERR-1) Error of number of nuclei in samples. 4047600500030 EN-ERR is probably EN-RSL-HW (as was coded in Subent 4047600500031 007), but there is no information in article about 4047600500032 this error. 4047600500033 STATUS (TABLE) Table of C,77KIEV,3,131,1977. 4047600500034 2(DEP,40476002) Data for monitor. 4047600500035 HISTORY (20121003A) M.M. Data for thermal point were deleted 4047600500036 ( they had been moved in Subent 006 in 1998 year). 4047600500037 EN-ERR value for EN=2.keV was added ( as was given in 4047600500038 Subent 007 ) 4047600500039 ENDBIB 37 0 4047600500040 COMMON 1 3 4047600500041 ERR-1 4047600500042 PER-CENT 4047600500043 1. 4047600500044 ENDCOMMON 3 0 4047600500045 DATA 8 4 4047600500046 EN EN-ERR DATA 1DATA-ERR 1DATA 2DATA-ERR 24047600500047 MONIT 2MONIT-ERR 2 4047600500048 KEV KEV NO-DIM NO-DIM B B 4047600500049 B B 4047600500050 2. 0.6 1.335 0.020 8.93 0.224047600500051 6.69 0.13 4047600500052 24. 2. 1.301 0.026 2.94 0.084047600500053 2.26 0.05 4047600500054 55. 5. 1.275 0.019 2.45 0.064047600500055 1.92 0.04 4047600500056 144. 15. 1.451 0.022 2.16 0.054047600500057 1.49 0.03 4047600500058 ENDDATA 12 0 4047600500059 ENDSUBENT 58 0 4047600599999 SUBENT 40476006 20121003 41584047600600001 BIB 8 17 4047600600002 REACTION 1((92-U-233(N,F),,SIG)/(92-U-235(N,F),,SIG)) 4047600600003 2(92-U-233(N,F),,SIG) 4047600600004 METHOD Cd(1mm ) filter was used for background measurement. 4047600600005 INC-SPECT Thermal neutrons were obtained by two-crystals neutron 4047600600006 monochromator. 4047600600007 Energy Neutron beam Background 4047600600008 keV n/cm**2/s % 4047600600009 2.53E-5 2.E+4 0.5 4047600600010 MONITOR 2((MONIT)92-U-235(N,F),,SIG) 4047600600011 MONIT-REF (,,R,BNL-325,1973) 4047600600012 ANALYSIS Absolute of U-233 fission c-s was determined 4047600600013 by measured ratio U-233/U-235 and U-235 fission c-s 4047600600014 recommended c-s at 0.0253 eV . 4047600600015 STATUS (TABLE) Table of C,77KIEV,3,131,1977. 4047600600016 HISTORY (19981111C) Moved from SAN 005 4047600600017 (20121003A) M.M. MXW code was deleted - not broad 4047600600018 spectrum. Monitor information was added. 4047600600019 ENDBIB 17 0 4047600600020 NOCOMMON 0 0 4047600600021 DATA 7 1 4047600600022 EN DATA 1DATA-ERR 1DATA 2DATA-ERR 2MONIT 24047600600023 MONIT-ERR 2 4047600600024 KEV NO-DIM NO-DIM B B B 4047600600025 B 4047600600026 2.53000E-5 0.908 0.014 528.6 8.0 582.2 4047600600027 1.3 4047600600028 ENDDATA 6 0 4047600600029 ENDSUBENT 28 0 4047600699999 SUBENT 40476007 20121003 41584047600700001 BIB 4 6 4047600700002 REACTION (92-U-233(N,F),,SIG,,SPA) 4047600700003 MONITOR (92-U-235(N,F),,SIG) 4047600700004 STATUS (SPSDD,40476005) See HISTORY. 4047600700005 HISTORY (19981111T) Converted from SUBENT 88004002 4047600700006 (20121003D) M.M. Data were deleted as duplication of 4047600700007 Subent 005. 4047600700008 ENDBIB 6 0 4047600700009 NOCOMMON 0 0 4047600700010 NODATA 0 0 4047600700011 ENDSUBENT 10 0 4047600799999 SUBENT 40476008 20121003 41584047600800001 BIB 4 7 4047600800002 REACTION (92-U-233(N,F),,SIG) 4047600800003 MONITOR (92-U-235(N,F),,SIG) 4047600800004 STATUS (SPSDD,40476006) See HISTORY. 4047600800005 HISTORY (19981111T) Converted from SUBENT 88004002 4047600800006 (20121003D) M.M. Data were deleted as duplication of 4047600800007 Subent 006. MXW code was deleted - not broad 4047600800008 spectrum. 4047600800009 ENDBIB 7 0 4047600800010 NOCOMMON 0 0 4047600800011 NODATA 0 0 4047600800012 ENDSUBENT 11 0 4047600899999 SUBENT 40476009 20121003 41584047600900001 BIB 6 13 4047600900002 REACTION ((94-PU-239(N,F),,SIG)/(92-U-235(N,F),,SIG)) 4047600900003 METHOD Cd(1mm ) filter was used for background measurement. 4047600900004 INC-SPECT Thermal neutrons were obtained by two-crystals neutron 4047600900005 monochromator. 4047600900006 Energy Neutron beam Background 4047600900007 keV n/cm**2/s % 4047600900008 2.53E-5 2.E+4 0.5 4047600900009 ANALYSIS This ratio was obtained by direct comparison of 4047600900010 fission event numbers in U-235 and Pu-239 samples and 4047600900011 nuclei numbers in samples. 4047600900012 STATUS (TABLE) Table 2 of J,AE,42,(1),56,1977. 4047600900013 HISTORY (19981111C) Moved from SAN 004 4047600900014 (20121003A) MXW code was deleted - not broad spectrum. 4047600900015 ENDBIB 13 0 4047600900016 COMMON 1 3 4047600900017 ERR-1 4047600900018 PER-CENT 4047600900019 1. 4047600900020 ENDCOMMON 3 0 4047600900021 DATA 3 1 4047600900022 EN DATA DATA-ERR 4047600900023 KEV NO-DIM NO-DIM 4047600900024 2.53E-5 1.274 .025 4047600900025 ENDDATA 3 0 4047600900026 ENDSUBENT 25 0 4047600999999 SUBENT 40476010 20121003 41584047601000001 BIB 8 14 4047601000002 REACTION (94-PU-239(N,F),,SIG) 4047601000003 METHOD Cd(1mm ) filter was used for background measurement. 4047601000004 INC-SPECT Thermal neutrons were obtained by two-crystals neutron 4047601000005 monochromator. 4047601000006 Energy Neutron beam Background 4047601000007 keV n/cm**2/s % 4047601000008 2.53E-5 2.E+4 0.5 4047601000009 MONITOR (92-U-235(N,F),,SIG) 4047601000010 MONIT-REF (,,R,BNL-325,1973) 4047601000011 ANALYSIS Absolute c-s was determined by measured ratio (Subent 4047601000012 009) and U-235 monitor c-s. 4047601000013 STATUS (TABLE) Text,page 57 of J,AE,42,(1),56,1977. 4047601000014 (DEP,40476009) See ANALYSIS 4047601000015 HISTORY (20121003C) M.M. 4047601000016 ENDBIB 14 0 4047601000017 NOCOMMON 0 0 4047601000018 DATA 5 1 4047601000019 EN DATA DATA-ERR MONIT MONIT-ERR 4047601000020 KEV B B B B 4047601000021 2.53E-5 741.7 15.0 582.2 1.3 4047601000022 ENDDATA 3 0 4047601000023 ENDSUBENT 22 0 4047601099999 ENDENTRY 10 0 4047699999999