ENTRY 30559 20180326 31833055900000001 SUBENT 30559001 20180326 31833055900100001 BIB 15 67 3055900100002 TITLE Absolute measurement of the fission cross section of 3055900100003 235U at 2.6 MeV with time correlated associated 3055900100004 particle method 3055900100005 AUTHOR (R.Arlt, M.Josch, G.Musiol, H.-G.Ortlepp, R.Teichner, 3055900100006 W.Wagner, I.D.Alchazov, L.V.Drapcinskij, V.N.Dusin, 3055900100007 O.I.Kostockin, S.S.Kovalenko, K.A.Petrzak, V.I.Spakov)3055900100008 INSTITUTE (4RUSRI,3DDRTUD) 3055900100009 REFERENCE (J,KE,25,199,1982) 3055900100010 (J,SJA,55,656,1983) 3055900100011 (J,AE,55,218,1983) Eng.orig. of J,SJA,55,656,1983 3055900100012 (J,IP,21,344,1985) Unclear if it gives final values 3055900100013 (S,ZFK-491,135,1982) 3055900100014 (R,TU-05-43-80,1980) Similar 3055900100015 (S,ZFK-459,44,1981) in Russian 3055900100016 (C,79KNOX,,990,1979) Same sig, prelim.error larger 3055900100017 (S,ZFK-410,108,1980) in Russian 3055900100018 (S,ZFK-382,180,1979) in Russian 3055900100019 FACILITY (CCW,3DDRTUD) 3055900100020 INC-SOURCE (D-D) 3055900100021 SAMPLE No. of nuclei in sample determined by alpha counting. 3055900100022 Alpha-decay half-life of U-235 was taken to be 3055900100023 (7.0381 +/- 0.0048)E+18 yr. 3055900100024 METHOD (ASSOP) Time-correlated associated particle method 3055900100025 for flux determination 3055900100026 DETECTOR (FISCH) Methane-filled fast fission chamber 3055900100027 (SCIN) for neutron cone 3055900100028 (TELES,SIBAR,SIBAR) 3He detection 3055900100029 MONITOR Absolute measurement 3055900100030 CORRECTION Corrected for 3055900100031 - Random coincidences (-8.47%)3055900100032 - Extrapolation of fission chamber amplitude 3055900100033 spectrum to zero pulse height (+1.36%)3055900100034 - Fragment losses in target layer (+2.11%)3055900100035 - Neutron background in associated particle 3055900100036 window (+2.37%)3055900100037 - Neutron scattering (+0.97%)3055900100038 - Geometrical increase of target thickness 3055900100039 at cone edge (-0.25%)3055900100040 ERR-ANALYS (ERR-T) Total uncertainty (1.53%) including 3055900100041 (ERR-1) Coincidence- Statistics (0.80%)3055900100042 (ERR-2) Coincidence- Random coincidences (0.45%)3055900100043 (ERR-3) Fiss.cham.- Extrap. to zero pulse height(0.35%)3055900100044 (ERR-4) Fiss.cham.- Fragment loss in targ.layer (0.30%)3055900100045 (ERR-5) Neutron count - Statistics (0.001%)3055900100046 (ERR-6) Neutron count - BG in assoc.part.window (0.50%)3055900100047 (ERR-7) Neutron count - Neutron scattering (0.25%)3055900100048 (ERR-8) Sample - Measurement of alpha activity (0.90%)3055900100049 (ERR-9) Sample - Effective inhomogeneity (0.40%)3055900100050 (ERR-10) Sample - Geometrical increase of target 3055900100051 thickness at cone edge (0.05%)3055900100052 COMMENT By compiler (2018-03-26): 3055900100053 The compiler adopted Sov.J.Atom.Energ.55(1983)656 3055900100054 as the latest report of this experimental work as 3055900100055 it is not very clear if Isotopenpraxis 21(1985)344 3055900100056 gives the latest result of this experimental work. 3055900100057 STATUS (APRVD) Approved by authors through letter (1980-12-08)3055900100058 HISTORY (19801029C) OS. 3055900100059 (19810115U) OS. BIB changes, author proof added. 3055900100060 (19810331A) OS.- Refs.and more details in BIB section 3055900100061 added, accuracy changed to final value. 3055900100062 (19830411A) OS.-2 Refs. added,error changed from 3055900100063 0.019 to 0.020 b. 3055900100064 (19861117A) OS. EN-RSL added, error changed from 3055900100065 0.020 to 0.018 b. 3055900100066 (20090503U) SD: Formal corrections. 3055900100067 (20110203U) VS. DOI identifier corrected 3055900100068 (20180326A) On. Recompiled from J,KE,25,199,1982. 3055900100069 ENDBIB 67 0 3055900100070 COMMON 10 6 3055900100071 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 3055900100072 ERR-7 ERR-8 ERR-9 ERR-10 3055900100073 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3055900100074 PER-CENT PER-CENT PER-CENT PER-CENT 3055900100075 0.80 0.45 0.35 0.30 0.001 0.50 3055900100076 0.25 0.90 0.40 0.05 3055900100077 ENDCOMMON 6 0 3055900100078 ENDSUBENT 77 0 3055900199999 SUBENT 30559002 20180326 31833055900200001 BIB 3 4 3055900200002 REACTION (92-U-235(N,F),,SIG) 3055900200003 STATUS (TABLE) Text (p202) of Kernenergie 25(1982)199 3055900200004 (SPSDD,41013003) 3055900200005 HISTORY (20180326A) On. Data in J,KE,25,199,1982 adopted. 3055900200006 ENDBIB 4 0 3055900200007 NOCOMMON 0 0 3055900200008 DATA 5 1 3055900200009 EN EN-ERR EN-RSL-HW DATA ERR-T 3055900200010 MEV MEV KEV B B 3055900200011 2.56 0.05 100. 1.215 0.020 3055900200012 ENDDATA 3 0 3055900200013 ENDSUBENT 12 0 3055900299999 ENDENTRY 2 0 3055999999999