ENTRY 14736 20220126 149614736 0 1 SUBENT 14736001 20220126 149614736 1 1 BIB 8 14 14736 1 2 TITLE The ratio of nu23/nu25 slightly delayed neutrons from 14736 1 3 23 14736 1 4 AUTHOR (W.M.Woodward,J.W.Dewire,R.R.Wilson) 14736 1 5 REFERENCE (R,LA-185,1944) 14736 1 6 REL-REF (A,,,W,ANDERSON,1944) Argonne value for nu233U/nu235U. 14736 1 7 INSTITUTE (1USALAS) 14736 1 8 SAMPLE Three samples were used, one of 233U containing 3 mg 14736 1 9 of oxide, one of beta-stage 235U containing 3.6 mg 14736 1 10 oxide, and one of 249Pu containing 3.2 mg metal. 14736 1 11 ADD-RES "Delayed neutron fractions" for very short delay times 14736 1 12 between 5 x 10**-9 secs and 10**-7 secs were measured: 14736 1 13 9.6 +/- 4.4% for U-233, and 14736 1 14 -4.0 +/- 5.3% for U-235. 14736 1 15 HISTORY (20220126C) BP 14736 1 16 ENDBIB 14 0 14736 1 17 COMMON 1 3 14736 1 18 EN-DUMMY 14736 1 19 EV 14736 1 20 0.0253 14736 1 21 ENDCOMMON 3 0 14736 1 22 ENDSUBENT 21 0 14736 199999 SUBENT 14736002 20220126 149614736 2 1 BIB 4 6 14736 2 2 REACTION ((94-PU-239(N,F),,NU)/(92-U-235(N,F),,NU)) 14736 2 3 METHOD (COINC) The measurements of the percent of neutrons 14736 2 4 delayed by more than 5 x 10**-9 secs and less than 14736 2 5 10**-7 secs. 14736 2 6 ERR-ANALYS (ERR-S) Statistical uncertainty 14736 2 7 STATUS (TABLE) page 4. 14736 2 8 ENDBIB 6 0 14736 2 9 NOCOMMON 0 0 14736 2 10 DATA 2 1 14736 2 11 DATA ERR-S 14736 2 12 NO-DIM NO-DIM 14736 2 13 1.173 0.021 14736 2 14 ENDDATA 3 0 14736 2 15 ENDSUBENT 14 0 14736 299999 SUBENT 14736003 20220126 149614736 3 1 BIB 3 3 14736 3 2 REACTION ((92-U-233(N,F),,NU)/(92-U-235(N,F),,NU)) 14736 3 3 ERR-ANALYS (ERR-S) Statistical uncertainty 14736 3 4 STATUS (TABLE) page 4. 14736 3 5 ENDBIB 3 0 14736 3 6 NOCOMMON 0 0 14736 3 7 DATA 2 1 14736 3 8 DATA ERR-S 14736 3 9 NO-DIM NO-DIM 14736 3 10 1.033 0.009 14736 3 11 ENDDATA 3 0 14736 3 12 ENDSUBENT 11 0 14736 399999 ENDENTRY 3 0 1473699999999