ENTRY 23714 20200601 228823714 0 1 SUBENT 23714001 20200601 228823714 1 1 BIB 9 22 23714 1 2 TITLE The spontaneous fission of uranium-238 23714 1 3 AUTHOR (T.Ishimori,K.Ueno,K.Kimura,E.Akatsu,Y.Kobayashi, 23714 1 4 J.Akatsu,R.Ono,M.Hoshi) 23714 1 5 REFERENCE (J,RCA,7,95,1967) 23714 1 6 INSTITUTE (2JPNJAE) 23714 1 7 SAMPLE U(IV) total amount 155.4 kg U, concentration 280 gU/l.23714 1 8 Ce(III) carrier 1.36 g Ce, 2.5mg Ce/l. 23714 1 9 Ag carrier 1.00 g Ag, 1.8 mg Ag/l. 23714 1 10 Y carrier 0.78 g Y, 1.4 mg Y/l. 23714 1 11 Natural U nitrate solution in HNO(2) conc. 2 M of total23714 1 12 volume 555 l, density (20 deg C) 1.393 g/cm3 23714 1 13 METHOD (CHSEP) Details are given in the article. 23714 1 14 DETECTOR (NAICR) Gamma-ray spectrometer with 5 inch x 5 inch 23714 1 15 NaI(Tl) crystal, TMC 400 channel pulse-height analyzer.23714 1 16 (PROPC) Low-background proportional counter for 23714 1 17 beta-counting. 23714 1 18 CORRECTION For decay at sampling. 23714 1 19 For chemical yield. 23714 1 20 For self-absorption, electron conversion, counting 23714 1 21 efficiency. 23714 1 22 For saturation 23714 1 23 HISTORY (20200601C) M.M. 23714 1 24 ENDBIB 22 0 23714 1 25 NOCOMMON 0 0 23714 1 26 ENDSUBENT 25 0 23714 199999 SUBENT 23714002 20200601 228823714 2 1 BIB 5 11 23714 2 2 REACTION (92-U-238(0,F)ELEM/MASS,CUM,FY) 23714 2 3 DECAY-DATA (39-Y-90-G,64.5HR) 23714 2 4 (39-Y-91-G,58.D) 23714 2 5 (39-Y-93-G,10.63HR) 23714 2 6 (58-CE-141,32.5D) 23714 2 7 (58-CE-143,33.4HR) 23714 2 8 FLAG (1.) U-238 SF HL 8.00E+15 yr 23714 2 9 (2.) U-238 SF HL 7.19E+15 yr 23714 2 10 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 23714 2 11 article. 23714 2 12 STATUS (TABLE) Table 3 of Radiochimica Acta,v.7,p.95,1967 23714 2 13 ENDBIB 11 0 23714 2 14 NOCOMMON 0 0 23714 2 15 DATA 5 8 23714 2 16 ELEMENT MASS DATA DATA-ERR FLAG 23714 2 17 NO-DIM NO-DIM PC/FIS PC/FIS NO-DIM 23714 2 18 39. 91. 9.41 0.27 1. 23714 2 19 39. 91. 8.30 0.466 2. 23714 2 20 39. 93. 11.04 0.47 1. 23714 2 21 39. 93. 9.62 0.420 2. 23714 2 22 58. 141. 10.40 0.513 1. 23714 2 23 58. 141. 8.19 0.462 2. 23714 2 24 58. 143. 8.53 0.259 1. 23714 2 25 58. 143. 7.49 0.234 2. 23714 2 26 ENDDATA 10 0 23714 2 27 ENDSUBENT 26 0 23714 299999 SUBENT 23714003 20200601 228823714 3 1 BIB 4 7 23714 3 2 REACTION (92-U-238(0,F)MASS,CHN,FY,,,DERIV) 23714 3 3 ANALYSIS Derived by interpolation from measured yields and 23714 3 4 data of other authors using NU=2.2 n/fis to 23714 3 5 complementary mass products and U-238 SF HL 7.19E+15 yr23714 3 6 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 23714 3 7 article. 23714 3 8 STATUS (TABLE) Table 3 of Radiochimica Acta,v.7,p.95,1967 23714 3 9 ENDBIB 7 0 23714 3 10 NOCOMMON 0 0 23714 3 11 DATA 3 5 23714 3 12 MASS DATA DATA-ERR 23714 3 13 NO-DIM PC/FIS PC/FIS 23714 3 14 138. 6.51 0.651 23714 3 15 139. 7.56 0.756 23714 3 16 142. 7.98 0.798 23714 3 17 148. 2.28 0.228 23714 3 18 149. 1.47 0.147 23714 3 19 ENDDATA 7 0 23714 3 20 ENDSUBENT 19 0 23714 399999 ENDENTRY 3 0 2371499999999