ENTRY 40911 20240613 42174091100000001 SUBENT 40911001 20240613 42174091100100001 BIB 12 64 4091100100002 TITLE Absolute measurements of the fission cross-sections 4091100100003 for heavy isotopes by the neutrons with energies 4091100100004 2.6, 8.4 and 14.7 MeV 4091100100005 AUTHOR (I.D.Alkhazov, E.A.Ganza, L.V.Drapchinskiy, V.N.Dushin,4091100100006 S.S.Kovalenko, O.I.Kostochkin, K.A.Petrzhak, 4091100100007 A.V.Fomichev, V.I.Shpakov, R.Arlt, W.Wagner, M.Josch, 4091100100008 G.Musiol, H.-G.Ortlepp, G.Pausch) 4091100100009 REFERENCE (C,83MOSKVA,2,201,1983) Proceedings (Materialy) of the 4091100100010 3-d All-Union Conference on the 4091100100011 Neutron Radiation Metrology at 4091100100012 Reactors and Accelerators, 4091100100013 Moscow, TzNIIAtomInform, 1983 4091100100014 (J,SJA,55,656,1983) Engl.translation of AE,55,218,1983 4091100100015 (J,AE,55,218,1983) First author V.N.Dushin. 4091100100016 INSTITUTE (4RUSRI ) 4091100100017 (2GERDRE) Former 3DDRTUD 4091100100018 REL-REF (O,40547015,V.M.Adamov+,C,79KNOX,,995,1979) 4091100100019 U-238(N,F),,SIG measured in 4RUSRI, 4091100100020 1.178+-0.024 b at energy region 14.5 - 14.7 MeV 4091100100021 in Table 3 of Conf.Proc.83MOSKVA,v.2,p.201,1983; 4091100100022 1.178+-0.024 b at 14.7+-0.2 MeV in C,79KNOX,,995,1979 4091100100023 (O,30558001,V.N.Dushin+,J,SJA,55,656,1983) 4091100100024 Subent 002 - U-235, Subent 003 - Np-237. 4091100100025 Data measured at 2GERDRE. 4091100100026 INC-SOURCE (D-T,D-D) 4091100100027 MONITOR Absolute measurements 4091100100028 METHOD (ASSOP) Method of the associated particles - 4091100100029 neutrons and He-4/He-3 from T(d,n)He-4 and D(d,n)He-4 4091100100030 reactions. 4091100100031 Coincidence between fission and associated particles. 4091100100032 ANALYSIS CS was determined by formula: 4091100100033 SIG=Nc/(Nap*Nnucl), where 4091100100034 Nc - number of coincidences, 4091100100035 Nap - number of associated particles, 4091100100036 Nnucl - number of nuclei per 1 cm2 in sample. 4091100100037 CORRECTION - on the neutron flux attenuation - 1. to 3. %, 4091100100038 - on the background in the associated particles 4091100100039 channel - 0.3 to 3. %, 4091100100040 on the zero-threshold suppression extrapolation - 4091100100041 0.5 to 1.5 %, 4091100100042 - on the fission-fragments absorption in a layer -1.%, 4091100100043 - on the random coincidence - 2.5 %. 4091100100044 ERR-ANALYS (ERR-T) Total uncertainty. 4091100100045 Sources of uncertainty: 4091100100046 Neutron beam on sample: 4091100100047 (ERR-1,0.2,0.5) the neutron flux attenuation 4091100100048 (ERR-2,0.1,0.5) the associated particles background 4091100100049 (ERR-3,0.5,1.0) the sample non-uniformity 4091100100050 Determination of fission events: 4091100100051 (ERR-4,0.2,0.7) the zero-threshold suppression 4091100100052 extrapolation 4091100100053 (ERR-5,0.2,0.3) the fission-fragments absorption in 4091100100054 a layer 4091100100055 Other: 4091100100056 (ERR-6,0.5,1.0) the coincidence statistics 4091100100057 (ERR-7,0.2,0.5) the random coincidences correction 4091100100058 (ERR-8,0.7,1.0) the number of the nuclei in the sample 4091100100059 HISTORY (19861212C) Compiled at the CJD 4091100100060 (20040517A) Date is corrected 4091100100061 (20211201A) M.M. Correction for current rules and 4091100100062 dictionaries. 4091100100063 Subent 004 was deleted according to request of 4091100100064 N.Otsuka (NDS,IAEA), see also REL-REF. 4091100100065 (20240613A) Subent 006 was corrected. 4091100100066 ENDBIB 64 0 4091100100067 NOCOMMON 0 0 4091100100068 ENDSUBENT 67 0 4091100199999 SUBENT 40911002 20240613 42174091100200001 BIB 3 6 4091100200002 REACTION (92-U-235(N,F),,SIG) 4091100200003 FLAG (1.) Table 3, measurement in 4RUSRI 4091100200004 (2.) Table 4, exp. year 1980-1981 4091100200005 STATUS (TABLE,,I.D.Alkhazov+,C,83MOSKVA,2,201,1983) 4091100200006 Tables 3,4 4091100200007 (SPSDD,41013004) Later (1988 year) publication 4091100200008 ENDBIB 6 0 4091100200009 NOCOMMON 0 0 4091100200010 DATA 4 3 4091100200011 EN DATA ERR-T FLAG 4091100200012 MEV B B NO-DIM 4091100200013 2.6 1.214 0.018 2. 4091100200014 8.4 1.801 0.043 2. 4091100200015 14.6 2.086 1. 4091100200016 ENDDATA 5 0 4091100200017 ENDSUBENT 16 0 4091100299999 SUBENT 40911003 20240613 42174091100300001 BIB 4 7 4091100300002 REACTION (92-U-233(N,F),,SIG) 4091100300003 EXP-YEAR (1980) 1980-1981 4091100300004 COMMENT .Measured in 2GERDRE, former 3DDRTUD 4091100300005 STATUS (TABLE,,I.D.Alkhazov+,C,83MOSKVA,2,201,1983) 4091100300006 Table 4. 4091100300007 (COREL,40547011) Previous measurement, publication at 4091100300008 1979 year. 4091100300009 ENDBIB 7 0 4091100300010 NOCOMMON 0 0 4091100300011 DATA 3 1 4091100300012 EN DATA ERR-T 4091100300013 MEV B B 4091100300014 14.7 2.244 0.042 4091100300015 ENDDATA 3 0 4091100300016 ENDSUBENT 15 0 4091100399999 NOSUBENT 40911004 20240613 42174091100400001 SUBENT 40911005 20240613 42174091100500001 BIB 4 9 4091100500002 REACTION (92-U-238(N,F),,SIG) 4091100500003 FLAG (1.) Measured in 2GERDRE, former 3DDRTUD 4091100500004 (2.) Measured at RI 4091100500005 STATUS (TABLE,,V.N.Dushin+,J,SJA,55,656,1983) 4091100500006 Table 2. 4091100500007 I.D.Alkhazov+,C,83MOSKVA,2,201,1983, 4091100500008 Table 3. 4091100500009 (SPSDD,22304007) Final data published at 1991. 4091100500010 HISTORY (20240613A) Data measured at RI were added. 4091100500011 ENDBIB 9 0 4091100500012 NOCOMMON 0 0 4091100500013 DATA 4 2 4091100500014 EN DATA ERR-T FLAG 4091100500015 MEV B B NO-DIM 4091100500016 14.7 1.166 0.021 1. 4091100500017 14.7 1.171 0.024 2. 4091100500018 ENDDATA 4 0 4091100500019 ENDSUBENT 18 0 4091100599999 SUBENT 40911006 20240613 42174091100600001 BIB 4 17 4091100600002 REACTION (93-NP-237(N,F),,SIG) 4091100600003 EXP-YEAR (1980) 1980-1981 4091100600004 STATUS (TABLE,,V.N.Dushin+,J,SJA,55,656,1983) 4091100600005 Table 2. 4091100600006 In I.D.Alkhazov+,C,83MOSKVA,2,201,1983, 4091100600007 Table 4 - 2.210+-0.024 b 4091100600008 (COREL,40552003) Earlier measurement, published at 19774091100600009 year. 4091100600010 HISTORY (20240613A) Data were deleted according to a comment of4091100600011 N.Otsuka (NDS,IAEA): 4091100600012 "2.163+/-0.045 b at 8.4 MeV compiled in 30550.003; 4091100600013 2.210+/-0.024 b at 14.7 MeV (exp.location unclear), 4091100600014 consider to compile 2.214+/-0.040 b at 14.7 MeV in 4091100600015 V.N.Dushin+,J,SJA,55,656,1983, Table 2, somewhere". 4091100600016 Data at 14.7 MeV 2.210+-0.024 (Table 4 of 4091100600017 I.D.Alkhazov+,C,83MOSKVA,2,201,1983) were replaced by 4091100600018 2.214+-0.040 (Table 2, V.N.Dushin+,J,SJA,55,656,1983).4091100600019 ENDBIB 17 0 4091100600020 NOCOMMON 0 0 4091100600021 DATA 3 1 4091100600022 EN DATA ERR-T 4091100600023 MEV B B 4091100600024 14.7 2.214 0.040 4091100600025 ENDDATA 3 0 4091100600026 ENDSUBENT 25 0 4091100699999 SUBENT 40911007 20240613 42174091100700001 BIB 4 7 4091100700002 REACTION (94-PU-239(N,F),,SIG) 4091100700003 EXP-YEAR (1980) 1980-1981 4091100700004 STATUS (TABLE,,I.D.Alkhazov+,C,83MOSKVA,2,201,1983) 4091100700005 Table 4. 4091100700006 (COREL,40547017) Previous measurement, publication at 4091100700007 1979 year. 4091100700008 HISTORY (20211201A) (SPSDD,22304007) was deleted. 4091100700009 ENDBIB 7 0 4091100700010 NOCOMMON 0 0 4091100700011 DATA 3 1 4091100700012 EN DATA ERR-T 4091100700013 MEV B B 4091100700014 14.7 2.309 0.028 4091100700015 ENDDATA 3 0 4091100700016 ENDSUBENT 15 0 4091100799999 SUBENT 40911008 20240613 42174091100800001 BIB 4 9 4091100800002 REACTION (94-PU-242(N,F),,SIG) 4091100800003 EXP-YEAR (1980) 1980-1981 4091100800004 STATUS (TABLE,,I.D.Alkhazov+,C,83MOSKVA,2,201,1983) 4091100800005 Table 4. 4091100800006 (COREL,40547024) Previous measurement, publication at 4091100800007 1979 year. 4091100800008 HISTORY (20240613A) Data 2.143+-0.102 (Table 4 of 4091100800009 I.D.Alkhazov+,C,83MOSKVA,2,201,1983) were replaced by 4091100800010 2.062+-0.036 (Table 2, V.N.Dushin+,J,SJA,55,656,1983).4091100800011 ENDBIB 9 0 4091100800012 NOCOMMON 0 0 4091100800013 DATA 3 1 4091100800014 EN DATA ERR-T 4091100800015 MEV B B 4091100800016 14.7 2.062 0.036 4091100800017 ENDDATA 3 0 4091100800018 ENDSUBENT 17 0 4091100899999 ENDENTRY 8 0 4091199999999