ENTRY 40260 20220204 42044026000000001 SUBENT 40260001 20220204 42044026000100001 BIB 11 41 4026000100002 TITLE The average number of neutrons emitted in the 4026000100003 spontaneous fission of Cm244, Cm246, and Cm248 4026000100004 AUTHOR (V.V.Golushko,K.D.Zhuravlev,Yu.S.Zamyatnin, 4026000100005 N.I.Kroshkin,V.N.Nefedov) 4026000100006 REFERENCE (J,AE,34,135,1973) Issue 2. 4026000100007 (J,SJA,34,178,1973) Engl. translation of J,AE,34,135 . 4026000100008 #doi:10.1007/BF01163947 4026000100009 (R,YFI-18,45,1974) Data are given 4026000100010 (R,INDC(CCP)-49,44,1975) 4026000100011 English translation of YFI-18,45,1974. 4026000100012 INSTITUTE (4RUSNIR) 4026000100013 METHOD (COINC) Coincidence between fission fragments 4026000100014 and fission neutrons 4026000100015 DETECTOR (PROPC) 48 proportional counters for registration 4026000100016 of fission neutrons. Placed in paraffin block. 4026000100017 Cf-252 spontaneous fission neutrons registration 4026000100018 efficiency 29.%. 4026000100019 (SCIN) Gas scintillation detectors for counting 4026000100020 of fission fragments 4026000100021 ANALYSIS Value of nu for curium isotopes was obtained 4026000100022 from measurements relative to Cf-252 4026000100023 PART-DET (PN,FF) 4026000100024 CORRECTION For random coincidences, for sample isotopes content. 4026000100025 For overlapping of neutron pulses from one fission 4026000100026 event. 4026000100027 Energy dependence of detector neutron registration was 4026000100028 investigated by comparison of measured NU-prompt for 4026000100029 Cm-244 with recommended value, good agreement means, 4026000100030 that correction for energy dependence is in frames of 4026000100031 errors of measurements. 4026000100032 Maximal value of other corrections < 0.1 %. 4026000100033 ERR-ANALYS (DATA-ERR) Not specified. 4026000100034 HISTORY (19750212C) 4026000100035 (20121005A) M.M. Upper -> lower case correction. 4026000100036 Dates were corrected for 4-digits year. 4026000100037 BIB information was updated. 4026000100038 Reference J,AE,34,(2),135,1973 and it's English 4026000100039 translation were added. 4026000100040 Units of monitor and data were corrected: 4026000100041 NO-DIM -> PRT/FIS . 4026000100042 (20220204U) Ref. INDC(CCP)-49,44,1975 was added. 4026000100043 ENDBIB 41 0 4026000100044 NOCOMMON 0 0 4026000100045 ENDSUBENT 44 0 4026000199999 SUBENT 40260002 20220204 42044026000200001 BIB 5 13 4026000200002 REACTION (96-CM-244(0,F),PR,NU) 4026000200003 SAMPLE Cm-242 - 0.03%, Cm-244 - 99.24%, Cm-245 - 0.42 %, 4026000200004 Cm-246 - 0.31% . 4026000200005 (96-CM-244,ENR=0.9924) 4026000200006 (96-CM-242,ENR=0.0003) 4026000200007 (96-CM-245,ENR=0.0042) 4026000200008 (96-CM-246,ENR=0.0031) 4026000200009 MONITOR (98-CF-252(0,F),PR,NU) 4026000200010 REL-REF (A,40140002,L.I.Prokhorova+,J,AE,33,767,1972) 4026000200011 STATUS (TABLE) Table 2 of Sov.At.Energy,v.34,p.178,1973 (Engl.4026000200012 translation of At.Energy,v.34,p.135,1973) 4026000200013 = Table of INDC(CCP)-49,44,1975 (Engl.translation of 4026000200014 YFI-18,p.45,1974). 4026000200015 ENDBIB 13 0 4026000200016 COMMON 2 3 4026000200017 MONIT MONIT-ERR 4026000200018 PRT/FIS PRT/FIS 4026000200019 3.756 0.010 4026000200020 ENDCOMMON 3 0 4026000200021 DATA 2 1 4026000200022 DATA DATA-ERR 4026000200023 PRT/FIS PRT/FIS 4026000200024 2.680 0.027 4026000200025 ENDDATA 3 0 4026000200026 ENDSUBENT 25 0 4026000299999 SUBENT 40260003 20220204 42044026000300001 BIB 5 11 4026000300002 REACTION (96-CM-246(0,F),PR,NU) 4026000300003 SAMPLE Cm-244 - 0.25%, Cm-245 - 0.29%, Cm-246 - 99.46 % . 4026000300004 (96-CM-246,ENR=0.9946) 4026000300005 (96-CM-244,ENR=0.0025) 4026000300006 (96-CM-245,ENR=0.0029) 4026000300007 MONITOR (98-CF-252(0,F),PR,NU) 4026000300008 REL-REF (A,40140003,L.I.Prokhorova+,J,AE,33,767,1972) 4026000300009 STATUS (TABLE) Table 2 of Sov.At.Energy,v.34,p.178,1973 (Engl.4026000300010 translation of At.Energy,v.34,p.135,1973) 4026000300011 = Table of INDC(CCP)-49,44,1975 (Engl.translation of 4026000300012 YFI-18,p.45,1974). 4026000300013 ENDBIB 11 0 4026000300014 COMMON 2 3 4026000300015 MONIT MONIT-ERR 4026000300016 PRT/FIS PRT/FIS 4026000300017 3.756 0.010 4026000300018 ENDCOMMON 3 0 4026000300019 DATA 2 1 4026000300020 DATA DATA-ERR 4026000300021 PRT/FIS PRT/FIS 4026000300022 2.927 0.027 4026000300023 ENDDATA 3 0 4026000300024 ENDSUBENT 23 0 4026000399999 SUBENT 40260004 20220204 42044026000400001 BIB 5 11 4026000400002 REACTION (96-CM-248(0,F),PR,NU) 4026000400003 SAMPLE Cm-244 - 5.57%, Cm-246 - 1.85%, Cm-248 - 92.58 % . 4026000400004 (96-CM-248,ENR=0.9258) 4026000400005 (96-CM-244,ENR=0.0557) 4026000400006 (96-CM-246,ENR=0.0185) 4026000400007 MONITOR (98-CF-252(0,F),PR,NU) 4026000400008 REL-REF (A,40140004,L.I.Prokhorova+,J,AE,33,767,1972) 4026000400009 STATUS (TABLE) Table 2 of Sov.At.Energy,v.34,p.178,1973 (Engl.4026000400010 translation of At.Energy,v.34,p.135,1973) 4026000400011 = Table of INDC(CCP)-49,44,1975 (Engl.translation of 4026000400012 YFI-18,p.45,1974). 4026000400013 ENDBIB 11 0 4026000400014 COMMON 2 3 4026000400015 MONIT MONIT-ERR 4026000400016 PRT/FIS PRT/FIS 4026000400017 3.756 0.010 4026000400018 ENDCOMMON 3 0 4026000400019 DATA 2 1 4026000400020 DATA DATA-ERR 4026000400021 PRT/FIS PRT/FIS 4026000400022 3.173 0.022 4026000400023 ENDDATA 3 0 4026000400024 ENDSUBENT 23 0 4026000499999 ENDENTRY 4 0 4026099999999