ENTRY 40831 20191214 41854083100000001 SUBENT 40831001 20191214 41854083100100001 BIB 8 29 4083100100002 INSTITUTE (4RUSFEI) 4083100100003 REFERENCE ((C,83KIEV,2,159,1983)= 4083100100004 (R,INDC(CCP)-235,159,1984)) Vol.II 4083100100005 (J,AE,56,162,1984) Issue 3. 4083100100006 5.4-10.4 MeV En 4083100100007 (J,SJA,56,173,1984) Engl.transl.of J,AE,56,162,1984 4083100100008 (J,AE,56,164,1984) Issue 3. 4083100100009 13.8-14.7 MeV En 4083100100010 (J,SJA,56,176,1984) Engl.transl.of J,AE,56,164,1984 4083100100011 AUTHOR (A.A.Goverdovskii,A.K.Gordyushin,B.D.Kuz'minov, 4083100100012 V.F.Mitrofanov,A.I.Sergachev,A.I.Solov'ev, 4083100100013 S.M.Soloshenkov) 4083100100014 TITLE Measurement of the fission cross-section ratio 4083100100015 U-238/U-235 for fast neutrons 4083100100016 METHOD (TOF) 4083100100017 DETECTOR (IOCH) Fast double ionization chamber 4083100100018 COMMENT Of compiler M.M. Errors and corrections values are 4083100100019 different in 83KIEV and SJA publication. 4083100100020 It's not clear what values are final: 4083100100021 SJA articles were submitted 15 March 1983; 4083100100022 83KIEV was 2-6 October and published in 1984. 4083100100023 HISTORY (19841220C) 4083100100024 (20180323A) M.M. Upper -> lower case correction. 4083100100025 Dates were corrected for 4-digits year. 4083100100026 Refs. SJA,56,173,1984 , SJA,56,176,1984 , 4083100100027 INDC(CCP)-235,159,1984 were added. 4083100100028 BIB information was added. 4083100100029 COMMENT was added. 4083100100030 (20191214U) Minor correction in Subent 004 Status. 4083100100031 ENDBIB 29 0 4083100100032 NOCOMMON 0 0 4083100100033 ENDSUBENT 32 0 4083100199999 SUBENT 40831002 20180323 41784083100200001 BIB 7 12 4083100200002 REACTION ((92-U-238(N,F),,SIG)/(92-U-235(N,F),,SIG)) 4083100200003 FACILITY (VDG,4RUSFEI) Charge exchange electrostatic accelerator4083100200004 5 MHz, pulse duration 1nsec, ion current 1-1.4 mcAmp. 4083100200005 SAMPLE Sample number 2 contains 6.864 % of U-235, 4083100200006 0.020 % of U-236, 93.116 % of U-238 . 4083100200007 3-d sample contains 3.213 % of U-235, 4083100200008 0.007 % of U-236, 96.78 % U-238 . 4083100200009 MONITOR No information 4083100200010 FLAG (1.) 2-nd sample 4083100200011 (2.) 3-d sample 4083100200012 ERR-ANALYS (DATA-ERR) Type of error is not explained in article. 4083100200013 STATUS (TABLE) Table 1 of AE,56,(3),162,1984 4083100200014 ENDBIB 12 0 4083100200015 NOCOMMON 0 0 4083100200016 DATA 4 2 4083100200017 EN DATA DATA-ERR FLAG 4083100200018 MEV NO-DIM NO-DIM NO-DIM 4083100200019 7.3 0.583 0.006 1. 4083100200020 7.3 0.584 0.006 2. 4083100200021 ENDDATA 4 0 4083100200022 ENDSUBENT 21 0 4083100299999 SUBENT 40831003 20180323 41784083100300001 BIB 10 35 4083100300002 REACTION ((92-U-238(N,F),,SIG)/(92-U-235(N,F),,SIG)) 4083100300003 FACILITY (VDG,4RUSFEI)Charge exchange electrostatic accelerator 4083100300004 INC-SOURCE (D-D) 4083100300005 SAMPLE 1-st sample has mass 8.0 milligram,thickness 4083100300006 0.41 milligram/cm**2, contains 0.002 % U-234, 4083100300007 99.992 % U-235, 0.004 % U-236, 0.002 % U-238 4083100300008 2-nd sample has mass 9.4 milligram, thickness 4083100300009 0.48milligram/cm**2, contains 99.99 % U-238 4083100300010 MONITOR ((92-U-238(N,F),,SIG)/(92-U-235(N,F),,SIG)) 4083100300011 MONIT-REF (40831002,A.A.Goverdovskii+,J,SJA,56,173,1984) 4083100300012 See Subent 002 in this Entry. 4083100300013 CORRECTION Corrections introduced on : 4083100300014 the incomplete fragments registration due to finite 4083100300015 discrimination level - 1. % , 4083100300016 the total deceleration of the fragments in the layers 4083100300017 - 0.5 % , 4083100300018 the neutron scattering in the base layer - 0.2 %, 4083100300019 the neutron scattering in the detector -0.15 %, 4083100300020 the impurity fission - 0.1 %, 4083100300021 the background - 0.3 % 4083100300022 ERR-ANALYS (ERR-1) Error due to the incomplete fragments 4083100300023 registration 4083100300024 (ERR-2) Error due to the total deceleration 4083100300025 of the fragments in the layer 4083100300026 (ERR-3) Error due to the neutron scattering 4083100300027 on the walls of fission chamber 4083100300028 (ERR-4) Error due to the fragment spectrum 4083100300029 normalization 4083100300030 (ERR-S) Statistical error 4083100300031 (ERR-T) Total error 4083100300032 STATUS (APRVD) Gordjushin, 1984-12-20 4083100300033 (TABLE) Table 2 of SJA,56,173,1984 4083100300034 Table 3 of 83KIEV,2,159,1983 - data for 4083100300035 EN=5.44-14.76 MeV . 4083100300036 HISTORY (20180323A) M.M. EN-RSL-FW -> EN-RSL-HW (see 83KIEV ) 4083100300037 ENDBIB 35 0 4083100300038 COMMON 5 3 4083100300039 EN-NRM ERR-1 ERR-2 ERR-3 ERR-4 4083100300040 MEV PER-CENT PER-CENT PER-CENT PER-CENT 4083100300041 7.3 0.74 0.05 0.15 1.1 4083100300042 ENDCOMMON 3 0 4083100300043 DATA 5 27 4083100300044 EN EN-RSL-HW DATA ERR-S ERR-T 4083100300045 MEV MEV NO-DIM PER-CENT PER-CENT 4083100300046 5.44 0.15 0.491 0.83 1.56 4083100300047 5.64 0.14 0.521 1.03 1.69 4083100300048 5.89 0.14 0.548 1.00 1.68 4083100300049 6.14 0.13 0.575 0.90 1.59 4083100300050 6.38 0.12 0.597 0.89 1.59 4083100300051 6.50 0.12 0.601 0.80 1.52 4083100300052 6.61 0.11 0.609 1.13 1.72 4083100300053 6.84 0.11 0.620 1.20 1.76 4083100300054 7.07 0.10 0.598 1.20 1.76 4083100300055 7.19 0.10 0.581 0.90 1.57 4083100300056 7.30 0.10 0.584 0.20 0.68 4083100300057 7.52 0.10 0.576 1.21 1.77 4083100300058 7.74 0.09 0.572 0.86 1.55 4083100300059 7.96 0.09 0.570 1.20 1.77 4083100300060 8.17 0.09 0.564 1.16 1.74 4083100300061 8.33 0.08 0.570 0.91 1.58 4083100300062 8.49 0.08 0.562 0.90 1.56 4083100300063 8.65 0.08 0.552 0.80 1.52 4083100300064 8.81 0.08 0.569 0.87 1.56 4083100300065 8.97 0.08 0.565 0.87 1.56 4083100300066 9.12 0.07 0.557 1.30 1.83 4083100300067 9.28 0.07 0.568 0.81 1.53 4083100300068 9.44 0.07 0.556 0.78 1.51 4083100300069 9.59 0.07 0.560 0.80 1.52 4083100300070 9.80 0.07 0.559 1.05 1.67 4083100300071 10.00 0.07 0.578 0.85 1.55 4083100300072 10.41 0.06 0.567 1.05 1.67 4083100300073 ENDDATA 29 0 4083100300074 ENDSUBENT 73 0 4083100399999 SUBENT 40831004 20191214 41854083100400001 BIB 9 41 4083100400002 REACTION ((92-U-238(N,F),,SIG)/(92-U-235(N,F),,SIG)) 4083100400003 FACILITY (VDG,4RUSFEI) Electrostatic cascade 300-keV generator 4083100400004 2.5 MHz frequency 4083100400005 INC-SOURCE (D-T) Solid T-Sc target of 2.2 mg/cm2 thickness. 4083100400006 SAMPLE 1-st sample has mass 5.1 gram, thickness 0.26 4083100400007 milligram/cm**2, contains 0.002 % U-234, 4083100400008 99.992 % U-5, 0.004 % U-236, 0.002 % U-238 4083100400009 2-nd sample has mass 4.0 gram, thickness 0.20 4083100400010 milligram/cm**2, contains 6.864 % U-235, 4083100400011 0.020 % U-236, 93.116 % U-238 4083100400012 MONITOR No information 4083100400013 CORRECTION Corrections were introduced on : 4083100400014 the neutron flux difference at both samples - 4. % , 4083100400015 the difference of the fission registration 4083100400016 efficiencies for U-235 and U-238- 10. %, 4083100400017 the difference on fragments absorption in layers-0.2%,4083100400018 the neutron scattering in the base layer - 0.04 % , 4083100400019 the neutron scattering in the ion chamber - 0.05 % ; 4083100400020 minor ones- 0.01 % 4083100400021 ERR-ANALYS (ERR-1) error due to the difference of neutron flux on 4083100400022 samples 4083100400023 (ERR-2) error due to the difference of fission fragment4083100400024 registration efficiencies for U-238 and U-238 4083100400025 (ERR-3) error due to the uncertainty of U-238/U-235 4083100400026 number 4083100400027 (ERR-4) error due to the difference of fission fragment4083100400028 absorption in the layers 4083100400029 (ERR-5) error due to the neutron scattering in the 4083100400030 base layer 4083100400031 (ERR-6) error due to the neutron scattering on the 4083100400032 ionization chamber 4083100400033 (ERR-7) error due to the information processing 4083100400034 (ERR-8) error due to the background caused by the 4083100400035 charged particles 4083100400036 (ERR-S) Statistical error 4083100400037 (ERR-T) Total error 4083100400038 STATUS (APRVD) Gordjushin, 1984-12-20 4083100400039 (TABLE) Table 1 of Sov.J.Atom.Energy 56(1984)176, 4083100400040 Table 3 of Conf.Proc.83KIEV,v.2,p.159,1983 - data for 4083100400041 EN=5.44-14.76 MeV . 4083100400042 HISTORY (20180323A) M.M. EN-RSL-FW -> EN-RSL-HW (see 83KIEV ) 4083100400043 ENDBIB 41 0 4083100400044 COMMON 8 6 4083100400045 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 4083100400046 ERR-7 ERR-8 4083100400047 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 4083100400048 PER-CENT PER-CENT 4083100400049 0.2 1.4 1.5 0.02 0.004 0.005 4083100400050 0.1 0.001 4083100400051 ENDCOMMON 6 0 4083100400052 DATA 5 5 4083100400053 EN EN-RSL-HW DATA ERR-S ERR-T 4083100400054 MEV MEV NO-DIM PER-CENT PER-CENT 4083100400055 13.82 0.15 0.528 1.00 2.30 4083100400056 14.12 0.13 0.554 0.70 2.20 4083100400057 14.47 0.20 0.559 0.70 2.20 4083100400058 14.64 0.23 0.553 0.70 2.20 4083100400059 14.76 0.19 0.543 0.70 2.20 4083100400060 ENDDATA 7 0 4083100400061 ENDSUBENT 60 0 4083100499999 ENDENTRY 4 0 4083199999999