ENTRY 40188 20210319 41954018800000001 SUBENT 40188001 20210319 41954018800100001 BIB 13 46 4018800100002 INSTITUTE (4ZZZDUB) 4018800100003 REFERENCE (J,SNP,17,360,1973) Eng.transl.of YF,17,692,1973 4018800100004 (J,YF,17,692,1973) Issue 4. 4018800100005 (R,JINR-P15-6730,1972) Data tables. In Russian. 4018800100006 AUTHOR (M.Dakovskii,Yu.A.Lazarev,Yu.Ts.Oganesyan,G.V.Buklanov)4018800100007 TITLE Prompt neutrons in the spontaneous fission of Cf-246 4018800100008 SAMPLE Cf-246 was obtained in reaction U-238(C-12,4N) at 4018800100009 U-300 cyclotron. 4018800100010 METHOD (COINC) Coincidence of fission neutrons and fission 4018800100011 fragments . Measurement during 100 hr; 65015 Cm-244 4018800100012 fiss. events, 606 Cf-246 fiss. events were registered. 4018800100013 DETECTOR (PROPC) 36 proportional He-3 counters into moderator 4018800100014 - for neutron detection. 4018800100015 Detector efficiency was equal to 48.2%; 4018800100016 (SIBAR) Two independent chambers with Si(Au) surface- 4018800100017 barrier detectors and with Cm-244 into one of two 4018800100018 chambers and with Cf-246 into another chamber - for 4018800100019 fission fragment detection . 4018800100020 MONITOR (96-CM-244(0,F),PR,NU) 4018800100021 for efficiency determination. 4018800100022 Data see F.Manero,V.A.Konshin,report INDC(NDC)-34/U, 4018800100023 IAEA,Vienna,197106 and see also Prokhorova,Nesterov, 4018800100024 Smirenkin,report FEI-300,Obninsk,1971 4018800100025 MONIT-REF (,F.Manero+,R,INDC(NDS)-34/G,1971) 4018800100026 2.681+-0.011 - Tables 5,6 ( no pages numbers in hard 4018800100027 copy). 4018800100028 (,L.I.Prokhorova+,P,FEI-300,1971) 4018800100029 (40140001,L.I.Prokhorova+,J,AE,33,767,1972) Issue 3 4018800100030 2.70+-0.14 prt/fis. 4018800100031 PART-DET (N,FF) 4018800100032 CORRECTION Corrections on background (0.0015 n/fis) and on 4018800100033 resolution time of neutron detectors were introduced. 4018800100034 ERR-ANALYS (DATA-ERR) Main contribution to the error is 4018800100035 statistical error of fission counting 4018800100036 HISTORY (19731122C) Compiled at the centre 4018800100037 (20150109A) SD: Updated to new date formats,lower case.4018800100038 Ref. on Engl.transl. of YF added. 4018800100039 (20150219A) M.M. Article was checked, BIB information 4018800100040 was updated in TITLE,AUTHOR,SAMPLE,MONIT-REF , 4018800100041 CORRECTION,STATUS. 4018800100042 Subent 003 was added. 4018800100043 (20150506A) Subent 3 was corrected. 4018800100044 (20180114A) Ref. R,JINR-P15-6730,1972 was added. 4018800100045 (20210319U) Minor correction of free text. 4018800100046 DECAY-DATA were moved in free text of ANALYSIS in 4018800100047 Subent .002. 4018800100048 ENDBIB 46 0 4018800100049 COMMON 2 3 4018800100050 MONIT MONIT-ERR 4018800100051 PRT/FIS PRT/FIS 4018800100052 2.69 0.01 4018800100053 ENDCOMMON 3 0 4018800100054 ENDSUBENT 53 0 4018800199999 SUBENT 40188002 20210319 41954018800200001 BIB 5 11 4018800200002 REACTION (98-CF-246(0,F),PR,NU) 4018800200003 ANALYSIS Time distribution of registered fission events agrees 4018800200004 with Cf-246 half-life 35.7 hr ( relative probability of4018800200005 Cf-246 SF 2.E-6). 4018800200006 REL-REF (R,,C.M.Lederer,B,LEDERER-6,,,1967) Cf-246 decay data. 4018800200007 STATUS (TABLE) Text of Abstract, text page 361, Table 4018800200008 of Sov.Nucl.Phys.,v.17,p.360,1973 . 4018800200009 Table 1 of rep. JINR-P15-6730,1972 4018800200010 HISTORY (20150219A) M.M. Units were corrected: 4018800200011 NO-DIM -> PRT/FIS. Data value 3.10 -> 3.14 . 4018800200012 (20210319A) ANALYSIS and REL-REF were added. 4018800200013 ENDBIB 11 0 4018800200014 NOCOMMON 0 0 4018800200015 DATA 2 1 4018800200016 DATA DATA-ERR 4018800200017 PRT/FIS PRT/FIS 4018800200018 3.14 0.09 4018800200019 ENDDATA 3 0 4018800200020 ENDSUBENT 19 0 4018800299999 SUBENT 40188003 20210319 41954018800300001 BIB 4 7 4018800300002 REACTION (98-CF-246(0,F),PR/NUM,NU) 4018800300003 Neutron multiplicity distribution. 4018800300004 MISC-COL (MISC) Number of events for Cf-246 . 4018800300005 STATUS (TABLE) Table of Sov.Nucl.Phys.,v.17,p.360,1973 . 4018800300006 Table 1 of rep. JINR-P15-6730,1972 4018800300007 HISTORY (20150219C) M.M. 4018800300008 (20150506A) Data for Cm-244 were moved in Subent 004. 4018800300009 ENDBIB 7 0 4018800300010 NOCOMMON 0 0 4018800300011 DATA 4 8 4018800300012 PART-OUT DATA DATA-ERR MISC 4018800300013 NO-DIM NO-DIM NO-DIM NO-DIM 4018800300014 0. 0.000 0.027 0. 4018800300015 1. 0.112 0.041 105. 4018800300016 2. 0.233 0.041 221. 4018800300017 3. 0.274 0.043 183. 4018800300018 4. 0.222 0.042 70. 4018800300019 5. 0.128 0.036 22. 4018800300020 6. 0.031 0.033 5. 4018800300021 7. 0.000 0.019 0. 4018800300022 ENDDATA 10 0 4018800300023 ENDSUBENT 22 0 4018800399999 SUBENT 40188004 20210319 41954018800400001 BIB 3 5 4018800400002 REACTION (96-CM-244(0,F),PR/NUM,NU) 4018800400003 Neutron multiplicity distribution. 4018800400004 STATUS (TABLE) Table of Sov.Nucl.Phys.,v.17,p.360,1973 . 4018800400005 Table 1 of rep. JINR-P15-6730,1972 4018800400006 HISTORY (20150506C) Data of Cm-244 were moved from Subent 003 4018800400007 ENDBIB 5 0 4018800400008 NOCOMMON 0 0 4018800400009 DATA 3 8 4018800400010 PART-OUT DATA DATA-ERR 4018800400011 NO-DIM NO-DIM NO-DIM 4018800400012 0. 0.031 0.005 4018800400013 1. 0.103 0.014 4018800400014 2. 0.294 0.020 4018800400015 3. 0.339 0.020 4018800400016 4. 0.187 0.019 4018800400017 5. 0.044 0.019 4018800400018 6. 0.000 0.017 4018800400019 7. 0.002 0.010 4018800400020 ENDDATA 10 0 4018800400021 ENDSUBENT 20 0 4018800499999 ENDENTRY 4 0 4018899999999