ENTRY 40993 20191105 41844099300000001 SUBENT 40993001 20191105 41844099300100001 BIB 13 60 4099300100002 TITLE Measurement of the fission cross-sections for trans- 4099300100003 uranium elements on the slowing-down-time 4099300100004 spectrometer in lead 4099300100005 AUTHOR (V.F.Gerasimov, V.V.Danichev, V.N.Dement'ev, 4099300100006 V.S.Zenkevich, G.V.Mozolev) 4099300100007 INSTITUTE (4RUSKUR) 4099300100008 REFERENCE (C,87KIEV,3,84,198709) 4099300100009 Group c-s for Pu-239,Pu-241, Am-242m, Cm-245 . 4099300100010 (J,VAT/O,,(3/36),43,1986) 4099300100011 Group c-s for U-235, Pu-241, Am-242m, Cm-245. 4099300100012 REL-REF (M,,V.V.Danichev,J,VAT/O,,(3/36),75,1986) 4099300100013 Details of spectrometer resolution function 4099300100014 determination. 4099300100015 (M,,V.V.Borisevich+,J,VAT/O,,(3/36),74,1986) 4099300100016 Details of Monte-Carlo calculations of slowing-down 4099300100017 spectrometer characteristics. 4099300100018 FACILITY (LINAC,4RUSKUR) Accelerator 'FAKEL' (TORCH). Electron 4099300100019 energy 50 MeV, pulse duration 50 nsec, frequency 275Hz.4099300100020 Tungsten converter cooled by compressed air. 4099300100021 INC-SPECT Neutron beam was measured by Li-6(n,a)H-3 reaction 4099300100022 using LiF layer on Ni foil of thickness < 1 microm. 4099300100023 DETECTOR (PROPC) Avalanche-type counters . 4099300100024 Ni electrodes of 1 microm thickness, 2.5 cm**2 working4099300100025 square, 2 mm distance between electrodes, filled by 4099300100026 heptane to pressure 20 Torr. 4099300100027 Channel wide of 50 nsec, dead time 1.5 microsec. 4099300100028 METHOD (SLODT) Neutron slowing-down time in lead (99.99%) cube4099300100029 of 1.6m size. 4099300100030 SAMPLE High purity samples. 4099300100031 ANALYSIS U-235 c-s was used to check spectrometer resolution 4099300100032 function approximation by Pearson distribution with 4099300100033 parameters a=1.65, a0=0.978, w=0.101, mu=0.82 obtained 4099300100034 by the resonances of Np-237 subbarrier fission in 4099300100035 energy range 26-60 eV. 4099300100036 U-235 fission cross-section from ENDF/B-V was 4099300100037 smoothed by spectrometer resolution function and 4099300100038 compared with measured point-wise c-s in 4099300100039 4.65 eV -2.5 keV energy range 4099300100040 - average deviation 5 %. 4099300100041 Also U-235 average fission c-s (from experimental) 4099300100042 was compared with BNAB-78 group c-s - deviation < 3.%. 4099300100043 STATUS (TABLE) Data are taken from the reference, Table 2. 4099300100044 HISTORY (19890921C) Compiled at the Center - CJD 4099300100045 (20070917A) M.M. COMMON and BIB information was added. 4099300100046 DATA-ERR was divided onto +DATA-ERR and -DATA-ERR. 4099300100047 (20090430A) M.M. BIB information was added. 4099300100048 (20111019A) M.M. Data were superseded by newer 4099300100049 publication. 4099300100050 (20131001A) Misprint in Subent 006 STATUS was corrected4099300100051 40396 -> 40369 . +DATA-ERR, -DATA-ERR -> MISC. 4099300100052 (20140710A) Monitor information was moved in ANALYSIS 4099300100053 - in Subent 001. 4099300100054 (20141016A) REACTION was corrected in all Subents : 4099300100055 ,SIG,,AV -> ,RI,,LIM/MSC . 4099300100056 Data of Subents 004,006 were deleted. 4099300100057 (20191105U) Minor correction in VAT/O refs. 4099300100058 Subent 004 was deleted as superseded by 41369007 - 4099300100059 newer publication. 4099300100060 Subent 006 was deleted as superseded by 41369002)- 4099300100061 newer publication. 4099300100062 ENDBIB 60 0 4099300100063 NOCOMMON 0 0 4099300100064 ENDSUBENT 63 0 4099300199999 SUBENT 40993002 20141016 41654099300200001 BIB 7 20 4099300200002 REACTION (94-PU-239(N,F),,RI,,LIM/MSC) Averaged over energy 4099300200003 interval given in the table 4099300200004 MONITOR (94-PU-239(N,F),,SIG,,AV) 4099300200005 ANALYSIS Normalization was made to ENDF/B-IV data using the 4099300200006 sum of group cross-sections of that library , where 4099300200007 the best agreement ( lowest deviation) was reached in 4099300200008 4.65 ev - 21.5 keV energy range (as explained in 4099300200009 C,87KIEV,3,84,1987, page 87). 4099300200010 MISC-COL (MISC) Relative deviation from the evaluated 4099300200011 values of data library which was used in 4099300200012 normalization. 4099300200013 ERR-ANALYS (ERR-SYS,,3.) Systematical error was estimated to be 4099300200014 < 3%. 4099300200015 STATUS (TABLE) Table 2 of C,87KIEV,3,84,1987 . 4099300200016 (SPSDD,41369005) Data are different only in one energy 4099300200017 group 46.5-100. eV. 4099300200018 Superseded by newer publication. 4099300200019 HISTORY (20141016A) REACTION was corrected according to comment4099300200020 of N.Otsuka ( NDS,IAEA) : 4099300200021 ,SIG,,AV -> ,RI,,LIM/MSC . 4099300200022 ENDBIB 20 0 4099300200023 COMMON 2 3 4099300200024 EN-NRM-MIN EN-NRM-MAX 4099300200025 EV KEV 4099300200026 4.65 21.5 4099300200027 ENDCOMMON 3 0 4099300200028 DATA 4 11 4099300200029 EN-MIN EN-MAX DATA MISC 4099300200030 EV EV B PER-CENT 4099300200031 4.65E+00 1.0 E+01 37.2 4.3 4099300200032 1.0 E+01 2.15E+01 103.9 7.0 4099300200033 2.15E+01 4.65E+01 20.2 4.0 4099300200034 4.65E+01 1.0 E+02 35.7 0.1 4099300200035 1.0 E+02 2.15E+02 18.8 4099300200036 2.15E+02 4.65E+02 12.3 6.5 4099300200037 4.65E+02 1.0 E+03 8.44 -0.3 4099300200038 1.0 E+03 2.15E+03 4.58 -1.4 4099300200039 2.15E+03 4.65E+03 3.23 -9.8 4099300200040 4.65E+03 1.0 E+04 2.28 -0.1 4099300200041 1.0 E+04 2.15E+04 1.82 7.2 4099300200042 ENDDATA 13 0 4099300200043 ENDSUBENT 42 0 4099300299999 SUBENT 40993003 20191105 41844099300300001 BIB 7 19 4099300300002 REACTION (94-PU-241(N,F),,RI,,LIM/MSC) 4099300300003 MONITOR (94-PU-241(N,F),,SIG,,AV) 4099300300004 ANALYSIS Normalization was made to BNAB-78 data in energy 4099300300005 range 21.5eV-2.15 keV using the evaluated data of that 4099300300006 library , where the best agreement ( lowest deviation) 4099300300007 was reached in 4.65 eV - 21.5 keV energy range (as 4099300300008 explained in J,VAT/O,1986,(3/36),43,1986, page 43). 4099300300009 MISC-COL (MISC) Relative deviation from the evaluated 4099300300010 values of data library which was used in 4099300300011 normalization. 4099300300012 ERR-ANALYS (ERR-SYS,,3.) Systematical error was estimated to be 4099300300013 < 3%. 4099300300014 STATUS (TABLE) Table 2 of C,87KIEV,3,84,1987 = 4099300300015 Table 2 of J,VAT/O,,(3/36),43,1986 . 4099300300016 (SPSDD,41369006) Data are different only in one energy 4099300300017 group 465.-1000. eV. Superseded by newer publication. 4099300300018 HISTORY (20141016A) REACTION was corrected according to comment4099300300019 of N.Otsuka ( NDS,IAEA) : 4099300300020 ,SIG,,AV -> ,RI,,LIM/MSC . 4099300300021 ENDBIB 19 0 4099300300022 COMMON 2 3 4099300300023 EN-NRM-MIN EN-NRM-MAX 4099300300024 EV KEV 4099300300025 21.5 2.15 4099300300026 ENDCOMMON 3 0 4099300300027 DATA 4 11 4099300300028 EN-MIN EN-MAX DATA MISC 4099300300029 EV EV B PER-CENT 4099300300030 4.65E+00 1.0 E+01 247.2 3.3 4099300300031 1.0 E+01 2.15E+01 127.0 -8.0 4099300300032 2.15E+01 4.65E+01 62.6 0.9 4099300300033 4.65E+01 1.0 E+02 39.9 1.4 4099300300034 1.0 E+02 2.15E+02 24.9 -3.6 4099300300035 2.15E+02 4.65E+02 22.3 -1.2 4099300300036 4.65E+02 1.0 E+03 12.83 1.7 4099300300037 1.0 E+03 2.15E+03 9.21 -1.4 4099300300038 2.15E+03 4.65E+03 6.16 -2.4 4099300300039 4.65E+03 1.0 E+04 4.23 -0.6 4099300300040 1.0 E+04 2.15E+04 3.04 -0.4 4099300300041 ENDDATA 13 0 4099300300042 ENDSUBENT 41 0 4099300399999 NOSUBENT 40993004 20191105 41844099300400001 SUBENT 40993005 20191105 41844099300500001 BIB 7 19 4099300500002 REACTION (96-CM-245(N,F),,RI,,LIM/MSC) 4099300500003 MONITOR (96-CM-245(N,F),,SIG,,AV) 4099300500004 ANALYSIS Normalization was made to ENDL-76 data in energy 4099300500005 range 21.5eV-2.15 keV using the evaluated data of that 4099300500006 library , where the best agreement ( lowest deviation) 4099300500007 was reached in 4.65 eV - 21.5 keV energy range (as 4099300500008 explained in J,VAT/O,1986,(3/36),43,1986, page 43). 4099300500009 MISC-COL (MISC) Relative deviation from the evaluated 4099300500010 values of data library which was used in 4099300500011 normalization. 4099300500012 ERR-ANALYS (ERR-SYS,,3.) Systematical error was estimated to be 4099300500013 < 3%. 4099300500014 STATUS (TABLE) Table 2 of C,87KIEV,3,84,1987 = 4099300500015 Table 2 of J,VAT/O,,(3/36),43,1986 4099300500016 (SPSDD,41369008) Superseded by newer publication. 4099300500017 Data are a little different. 4099300500018 HISTORY (20141016A) REACTION was corrected according to comment4099300500019 of N.Otsuka ( NDS,IAEA) : 4099300500020 ,SIG,,AV -> ,RI,,LIM/MSC . 4099300500021 ENDBIB 19 0 4099300500022 COMMON 2 3 4099300500023 EN-NRM-MIN EN-NRM-MAX 4099300500024 EV KEV 4099300500025 21.5 2.15 4099300500026 ENDCOMMON 3 0 4099300500027 DATA 4 11 4099300500028 EN-MIN EN-MAX DATA MISC 4099300500029 EV EV B PER-CENT 4099300500030 4.65E+00 1.0 E+01 212.0 10.0 4099300500031 1.0 E+01 2.15E+01 36.4 -7.0 4099300500032 2.15E+01 4.65E+01 69.4 9.0 4099300500033 4.65E+01 1.0 E+02 66.4 -6.0 4099300500034 1.0 E+02 2.15E+02 35.6 -4.2 4099300500035 2.15E+02 4.65E+02 20.02 0.6 4099300500036 4.65E+02 1.0 E+03 13.63 -1.9 4099300500037 1.0 E+03 2.15E+03 10.53 4.2 4099300500038 2.15E+03 4.65E+03 7.12 12.0 4099300500039 4.65E+03 1.0 E+04 5.10 2.7 4099300500040 1.0 E+04 2.15E+04 3.64 4.0 4099300500041 ENDDATA 13 0 4099300500042 ENDSUBENT 41 0 4099300599999 SUBENT 40993006 20191105 41844099300600001 BIB 4 11 4099300600002 REACTION (92-U-235(N,F),,RI,,LIM/MSC) 4099300600003 STATUS (TABLE) Table 1 of J,VAT/O,1986,(3/36),43,1986. 4099300600004 (SPSDD,41369002) Superseded by newer publication. 4099300600005 Data are the same. 4099300600006 ANALYSIS Average group c-s were calculated from point-wise 4099300600007 exp. c-s using defined resolution function (as 4099300600008 explained in J,VAT/O,,(3/36),43,1986, page 43). 4099300600009 HISTORY (20141016D) Data were deleted as duplication. 4099300600010 REACTION was corrected according to comment4099300600011 of N.Otsuka ( NDS,IAEA) : 4099300600012 ,SIG,,AV -> ,RI,,LIM/MSC . 4099300600013 ENDBIB 11 0 4099300600014 NOCOMMON 0 0 4099300600015 NODATA 0 0 4099300600016 ENDSUBENT 15 0 4099300699999 ENDENTRY 6 0 4099399999999