ENTRY 30722 20190722 31893072200000001 SUBENT 30722001 20190722 31893072200100001 BIB 12 41 3072200100002 TITLE The ratio of the 238U to 235U fission cross section 3072200100003 at 14.7 MeV 3072200100004 AUTHOR (Li Jingwen, Liu Weiping, Zhou Shuhua, Ye Zongyuan, 3072200100005 Yue Gang, Bai Xixiang) 3072200100006 INSTITUTE (3CPRAEP) 3072200100007 EXP-YEAR (1985) 3072200100008 REFERENCE (J,CNP,11,(3),17,1989) 3072200100009 (P,INDC(CPR)-009,7,1986) Prelim.data and error budget 3072200100010 FACILITY (CCW,3CPRAEP) 600 kV CCW of IAE 3072200100011 INC-SOURCE (D-T) 3072200100012 SAMPLE 238U: Depleted uranium (99.997%) 3072200100013 235U: Enrichment of 90.5% (sample 1) / 90.2% (sample 2)3072200100014 METHOD (ASSOP) Time correlated associated particle technique. 3072200100015 Time resolution is about 2 nsec. 3072200100016 DETECTOR (FISCH) Parallel plate type ionizatoin chamber 3072200100017 (SCIN) Plastic scintillator for associated alphas 3072200100018 ERR-ANALYS By compiler (2019-07-22): 3072200100019 The error budget table is taken from the 1986 3072200100020 preliminary publication. Total error is 3072200100021 - 2.53% in the budget table in the 1986 article, 3072200100022 - 2.48% from the 1986 value (=0.014/0.565), 3072200100023 - 2.61% from the 1989 value (=0.0148/0.567). 3072200100024 (ERR-T) Total error 3072200100025 (ERR-S) statistical (1.0%)3072200100026 (ERR-1) other isotopes of 235U sample (0.4%)3072200100027 (ERR-2) quantity of 235U sample (1.0%)3072200100028 (ERR-3) quantity of 238U sample (1.0%)3072200100029 (ERR-4) nonuniformity of 235U sample (1.0%)3072200100030 (ERR-5) nonuniformity of 238U sample (1.0%)3072200100031 (ERR-6) 235U isotopic composition of 235U sample (0.8%)3072200100032 (ERR-7) extrapolation to zero pulse height -235U (0.8%)3072200100033 (ERR-8) extrapolation to zero pulse height -238U (0.2%)3072200100034 (ERR-9) neutron flux correction (0.4%)3072200100035 (ERR-10) self-absorption of U-235 (0.2%)3072200100036 (ERR-11) self-absorption of U-238 (0.1%)3072200100037 HISTORY (19861006C) 3072200100038 (19900409A) VOF. New reference added. 3072200100039 (20090725A) SD: COMMON section and codes for 3072200100040 uncertainties were added in Subent 001 3072200100041 OS. Deleted MONITOR because not relevant for ratio. 3072200100042 (20190722U) On. ERR-ANALYS (free text) updated. 3072200100043 ENDBIB 41 0 3072200100044 COMMON 12 6 3072200100045 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 3072200100046 ERR-6 ERR-7 ERR-8 ERR-9 ERR-10 ERR-11 3072200100047 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3072200100048 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3072200100049 1.0 0.4 1.0 1.0 1.0 1.0 3072200100050 0.8 0.8 0.2 0.4 0.2 0.1 3072200100051 ENDCOMMON 6 0 3072200100052 ENDSUBENT 51 0 3072200199999 SUBENT 30722002 20190722 31893072200200001 BIB 3 5 3072200200002 REACTION ((92-U-238(N,F),,SIG)/(92-U-235(N,F),,SIG)) Sigma ratio3072200200003 STATUS (TABLE) Abstract of Chin.J.Nucl.Phys.11(3),17 (1989) 3072200200004 HISTORY (19880505A) WD. EN: 14.2 MeV -> 14.7 MeV 3072200200005 (19900409A) VOF. 0.565+/-0.014 -> 0.567+/-0.0148 3072200200006 (20190722U) On. EN=14.7 MeV moved to DATA section. 3072200200007 ENDBIB 5 0 3072200200008 NOCOMMON 0 0 3072200200009 DATA 3 1 3072200200010 EN DATA ERR-T 3072200200011 MEV NO-DIM NO-DIM 3072200200012 14.7 0.567 0.0148 3072200200013 ENDDATA 3 0 3072200200014 ENDSUBENT 13 0 3072200299999 ENDENTRY 2 0 3072299999999