ENTRY 14594 20200303 14671459400000001 SUBENT 14594001 20200303 14671459400100001 BIB 9 28 1459400100002 TITLE Determination of absolute slow-neutron fission yields 1459400100003 in U235 (I) 1459400100004 AUTHOR (D.W.Engelkemeir,T.B.Novey,D.S.Schover) 1459400100005 INSTITUTE (1USAANL) 1459400100006 REFERENCE (B,RCS,3,1334,1951) 1459400100007 FACILITY (REAC,1USAANL) The Argonne Graphite Pile 1459400100008 SAMPLE Two type of samples: light and heavy uranium disks. 1459400100009 The light sample was prepared by the electrolytic 1459400100010 deposition of uranium on platinum from a solution of 1459400100011 UO2(NO3)2*6H2O in absolute alcohol. The sample was 1459400100012 distributed uniformly over a circle 1.3 cm in 1459400100013 diameter and had a low specific mass, which was 1459400100014 determined by alpha counting. This sample was used 1459400100015 for determination of the number of fissions by 1459400100016 counting the fission recoil fragments in an air 1459400100017 ionization chamber. The heavy samples (disks of 1459400100018 uranium metal of the 1.3 cm diameter) were used for 1459400100019 chemically separation of individual fission products, 1459400100020 and the number of atoms present was determined by 1459400100021 beta counting. 1459400100022 METHOD (CHSEP) 1459400100023 ERR-ANALYS (DATA-ERR) Authors: The largest systematic errors in 1459400100024 the determinations are in the estimation of the beta- 1459400100025 counting geometry and in the correction of the beta 1459400100026 counting for absorption. The error in determining the 1459400100027 number of fissions 3-4%. The results are probably 1459400100028 accurate within 20%. 1459400100029 HISTORY (20200302C) OG. 1459400100030 ENDBIB 28 0 1459400100031 COMMON 2 3 1459400100032 EN-DUMMY DATA-ERR 1459400100033 EV PER-CENT 1459400100034 0.0253 20. 1459400100035 ENDCOMMON 3 0 1459400100036 ENDSUBENT 35 0 1459400199999 SUBENT 14594002 20200303 14671459400200001 BIB 3 5 1459400200002 REACTION (92-U-235(N,F)56-BA-140,CUM,FY,,SPA) 1459400200003 The average value with an average deviation of 0.25%. 1459400200004 DECAY-DATA (56-BA-140,12.5D,B-) 1459400200005 STATUS (TABLE) Tab.205.3 (p.1342) in Book Rad.Stud.,Fis.Prod.,1459400200006 Vol.3, p.1334(paper 205),1951,USA 1459400200007 ENDBIB 5 0 1459400200008 NOCOMMON 0 0 1459400200009 DATA 1 1 1459400200010 DATA 1459400200011 PC/FIS 1459400200012 5.82 1459400200013 ENDDATA 3 0 1459400200014 ENDSUBENT 13 0 1459400299999 SUBENT 14594003 20200303 14671459400300001 BIB 3 5 1459400300002 REACTION (92-U-235(N,F)52-TE-132,(CUM),FY,,SPA) 1459400300003 The average value with an average deviation of 0.25%. 1459400300004 DECAY-DATA (52-TE-132,77.HR,B-) 1459400300005 STATUS (TABLE) Tab.205.4 (p.1342) in Book Rad.Stud.,Fis.Prod.,1459400300006 Vol.3, p.1334(paper 205),1951,USA 1459400300007 ENDBIB 5 0 1459400300008 NOCOMMON 0 0 1459400300009 DATA 1 1 1459400300010 DATA 1459400300011 PC/FIS 1459400300012 3.44 1459400300013 ENDDATA 3 0 1459400300014 ENDSUBENT 13 0 1459400399999 ENDENTRY 3 0 1459499999999