ENTRY 41709 20201027 41904170900000001 SUBENT 41709001 20201027 41904170900100001 BIB 11 27 4170900100002 TITLE The ratio of the probabilities of ternary fission of 4170900100003 U235 and U238 by neutrons with different energies 4170900100004 AUTHOR (L.V.Drapchinskii, S.S.Kovalenko, K.A.Petrzhak, 4170900100005 I.I.Tyutyugin) 4170900100006 REFERENCE (J,SJA,16,164,1964) Engl.transl. of AE,16,144,1964 4170900100007 (J,JNE/AB,19,69,1965) Engl.transl. of AE,16,144,1964 4170900100008 (J,AE,16,144,1964) Issue 2. 4170900100009 INSTITUTE (4RUSRI) 4170900100010 FACILITY (NGEN) 4170900100011 INC-SOURCE .Slow neutrons were obtained by 2.5 MeV neutrons 4170900100012 slowing down in paraffin, the energy value is not 4170900100013 mentioned in the article, supposed by compiler as 1 eV.4170900100014 (D-D) 2.5 MeV neutrons 4170900100015 (D-T) 14 MeV neutrons 4170900100016 SAMPLE Layers of 2 mg/cm2. 4170900100017 DETECTOR (CSICR) CsI(Tl) crystal of 40 mm diameter to detect 4170900100018 alphas. 4170900100019 (IOCH) For fission fragments detection. Filled with Ar 4170900100020 at 1000 mm Hg pressure. 4170900100021 METHOD (COINC) Alphas and fission fragment coincidence with 4170900100022 time resolution 1 microsec. 4170900100023 Operational stability was verified by U-233 alpha line 4170900100024 and was found to be < 2%. 4170900100025 CORRECTION Random coincidences - 1.E-3 % for slow neutrons, 4170900100026 0.1 % for 2.5-MeV neutrons, 4170900100027 30-40 % for 14-MeV neutrons. 4170900100028 HISTORY (20201027C) M.M. 4170900100029 ENDBIB 27 0 4170900100030 NOCOMMON 0 0 4170900100031 ENDSUBENT 30 0 4170900199999 SUBENT 41709002 20201027 41904170900200001 BIB 3 5 4170900200002 REACTION ((92-U-235(N,F)2-HE-4,TER,FY)// 4170900200003 (92-U-235(N,F)2-HE-4,TER,FY,,SPA)) 4170900200004 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 4170900200005 article. 4170900200006 STATUS (TABLE) Text page 165 of Sov.At.Energy,v.16,p.164,1964 4170900200007 ENDBIB 5 0 4170900200008 COMMON 1 3 4170900200009 EN-DUM-DN 4170900200010 EV 4170900200011 1. 4170900200012 ENDCOMMON 3 0 4170900200013 DATA 3 2 4170900200014 EN-NM DATA DATA-ERR 4170900200015 MEV NO-DIM NO-DIM 4170900200016 2.5 0.95 0.08 4170900200017 14. 1.0 0.1 4170900200018 ENDDATA 4 0 4170900200019 ENDSUBENT 18 0 4170900299999 SUBENT 41709003 20201027 41904170900300001 BIB 3 5 4170900300002 REACTION ((92-U-238(N,F)2-HE-4,TER,FY)// 4170900300003 (92-U-238(N,F)2-HE-4,TER,FY)) 4170900300004 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 4170900300005 article. 4170900300006 STATUS (TABLE) Text page 165 of Sov.At.Energy,v.16,p.164,1964 4170900300007 ENDBIB 5 0 4170900300008 NOCOMMON 0 0 4170900300009 DATA 4 1 4170900300010 EN-NM EN-DN DATA DATA-ERR 4170900300011 MEV MEV NO-DIM NO-DIM 4170900300012 14. 2.5 1.21 0.17 4170900300013 ENDDATA 3 0 4170900300014 ENDSUBENT 13 0 4170900399999 SUBENT 41709004 20201027 41904170900400001 BIB 4 6 4170900400002 REACTION (92-U-235(N,F)2-HE-4,TER,FY) 4170900400003 Ratio of counts - ternary to binary fission. 4170900400004 MISC-COL (MISC) Number of ternary fission counts. 4170900400005 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 4170900400006 article. 4170900400007 STATUS (TABLE) Text page 165 of Sov.At.Energy,v.16,p.164,1964 4170900400008 ENDBIB 6 0 4170900400009 NOCOMMON 0 0 4170900400010 DATA 4 1 4170900400011 EN-DUMMY DATA DATA-ERR MISC 4170900400012 EV PRT/FIS PRT/FIS SEE TEXT 4170900400013 1. 60.7 E-5 3.0 E-5 529. 4170900400014 ENDDATA 3 0 4170900400015 ENDSUBENT 14 0 4170900499999 SUBENT 41709005 20201027 41904170900500001 BIB 4 7 4170900500002 REACTION (92-U-235(N,F)2-HE-4,TER,FY) 4170900500003 Ratio of counts - ternary to binary fission. 4170900500004 Number of ternary fission counts 529. 4170900500005 MISC-COL (MISC) Number of ternary fission counts. 4170900500006 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 4170900500007 article. 4170900500008 STATUS (TABLE) Table of Sov.At.Energy,v.16,p.164,1964 4170900500009 ENDBIB 7 0 4170900500010 NOCOMMON 0 0 4170900500011 DATA 4 2 4170900500012 EN DATA DATA-ERR MISC 4170900500013 MEV PRT/FIS PRT/FIS SEE TEXT 4170900500014 2.5 57.5 E-5 2.2 E-5 710. 4170900500015 14. 60.5 E-5 3.6 E-5 505. 4170900500016 ENDDATA 4 0 4170900500017 ENDSUBENT 16 0 4170900599999 SUBENT 41709006 20201027 41904170900600001 BIB 4 7 4170900600002 REACTION (92-U-238(N,F)2-HE-4,TER,FY) 4170900600003 Ratio of counts - ternary to binary fission. 4170900600004 Number of ternary fission counts 529. 4170900600005 MISC-COL (MISC) Number of ternary fission counts. 4170900600006 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 4170900600007 article. 4170900600008 STATUS (TABLE) Table of Sov.At.Energy,v.16,p.164,1964 4170900600009 ENDBIB 7 0 4170900600010 NOCOMMON 0 0 4170900600011 DATA 4 2 4170900600012 EN DATA DATA-ERR MISC 4170900600013 MEV PRT/FIS PRT/FIS SEE TEXT 4170900600014 2.5 22.0 E-5 1.7 E-5 173. 4170900600015 14. 26.6 E-5 1.9 E-5 444. 4170900600016 ENDDATA 4 0 4170900600017 ENDSUBENT 16 0 4170900699999 ENDENTRY 6 0 4170999999999