ENTRY 40835 20130225 41604083500000001 SUBENT 40835001 20130225 41604083500100001 BIB 10 26 4083500100002 INSTITUTE (4RUSFEI) 4083500100003 REFERENCE ((J,YK,1984,(3/57),13,198409)= 4083500100004 (R,INDC(CCP)-240,13,1984)) 4083500100005 (R,INDC(CCP)-281,17,1988) Engl.translation of J,YK. 4083500100006 REL-REF (M,,A.A.Goverdovskij+,C,83KIEV,4,115,198310) 4083500100007 =(R,INDC(CCP)-235,4,115) 4083500100008 exp. details of method and corrections . In Russian. 4083500100009 AUTHOR (A.A.Goverdovskij,A.K.Gordyushin,B.D.Kuz'minov, 4083500100010 V.F.Mitrofanov,A.I.Sergachev,S.M.Solov'ev, 4083500100011 P.S.Soloshenkov) 4083500100012 TITLE Measurement of the Np-237 and U-235 fission 4083500100013 cross-sections ratio by the isotopic delution method 4083500100014 DETECTOR (IOCH) Double ionization chamber. 4083500100015 Registration efficiency for Np-237 91%, for U-235 98%. 4083500100016 STATUS (APRVD) Gordyushin 1984-12 4083500100017 CORRECTION Correction on fission fragment transmission 0.2-0.5%. 4083500100018 ERR-ANALYS (ERR-S,0.3,1.0) Statistical error 0.3-1.0% 4083500100019 (ERR-1) Error of detector efficiencies ratio for 4083500100020 Np-237 and U-235 4083500100021 (ERR-2) Error due to corrections 4083500100022 (ERR-3) Error of isotopic content. 4083500100023 (ERR-T) Total error about 2.5 % . 4083500100024 HISTORY (19850219C) 4083500100025 (20130225A) M.M. Upper -> lower case correction. 4083500100026 Dates were corrected for 4-digits year. 4083500100027 BIB information was updated. 4083500100028 ENDBIB 26 0 4083500100029 COMMON 3 3 4083500100030 ERR-1 ERR-2 ERR-2 4083500100031 PER-CENT PER-CENT PER-CENT 4083500100032 1.2 0.2 1. 4083500100033 ENDCOMMON 3 0 4083500100034 ENDSUBENT 33 0 4083500199999 SUBENT 40835002 20130225 41604083500200001 BIB 5 9 4083500200002 REACTION ((93-NP-237(N,F),,SIG)/(92-U-235(N,F),,SIG)) 4083500200003 FACILITY (VDGT) Tandem generator 4083500200004 INC-SOURCE (D-D) Gas deuterium target. 4083500200005 SAMPLE First sample U-235 content is 3.46 % , 4083500200006 Np-237 content 96.54 % , thickness 4083500200007 300. microgram/cm2 . 4083500200008 Second sample U-235 content is 99.992 % , 4083500200009 thickness 258 microgram/cm2 4083500200010 STATUS (TABLE) Text, page 14 of J,YK,1984,(3/57),13,1984 . 4083500200011 ENDBIB 9 0 4083500200012 NOCOMMON 0 0 4083500200013 DATA 3 1 4083500200014 EN DATA ERR-T 4083500200015 MEV NO-DIM NO-DIM 4083500200016 7.34 1.246 3.0E-02 4083500200017 ENDDATA 3 0 4083500200018 ENDSUBENT 17 0 4083500299999 SUBENT 40835003 20130225 41604083500300001 BIB 5 23 4083500300002 REACTION ((93-NP-237(N,F),,SIG)/(92-U-235(N,F),,SIG)) 4083500300003 FACILITY (VDG) Cascade generator 4083500300004 INC-SOURCE (D-T) Solid T-Ti target. 4083500300005 SAMPLE First sample U-235 content is 3.46 % ,Np-237 4083500300006 content 96.54 % ,thickness 300.microg/cm2. 4083500300007 Second sample U-235 content IS 4.40 % ,Np-237 content 4083500300008 is 95.60 % , thickness 300.microgram/cm2. 4083500300009 Third sample U-235 content is 6.50 % ,Np-237 content 4083500300010 IS 93.50 % , thickness 300.microgram/cm2. 4083500300011 Forth sample U-235 content is 18.26 % ,Np-237 content 4083500300012 is 81.74 % , thickness 106. microgram/cm2. 4083500300013 Fifth sample U-235 content is 24.65 % ,Np-237 content 4083500300014 is 75.35 % , thickness 100. microgram/cm2. 4083500300015 Sixth sample U-235 content is 34.75 % , Np-237 content 4083500300016 is 65.25 % , thickness 98. microgram/cm2. 4083500300017 Seventh sample U-235 content is 99.992 % 4083500300018 thickness 258. microgram/cm2. 4083500300019 Eighth sample Np-237 content is 99.05% , Am-241 content4083500300020 is 0.52 % , Pu-239 content is 0.43 % , 4083500300021 thickness 460. microgram/cm2. 4083500300022 Ninth sample U-235 content is 99.992 % , thickness 4083500300023 410. microgram/cm2. 4083500300024 STATUS (TABLE) Text, page 14 of J,YK,1984,(3/57),13,1984 . 4083500300025 ENDBIB 23 0 4083500300026 NOCOMMON 0 0 4083500300027 DATA 3 1 4083500300028 EN DATA ERR-T 4083500300029 MEV NO-DIM NO-DIM 4083500300030 16.4 1.049 2.4E-02 4083500300031 ENDDATA 3 0 4083500300032 ENDSUBENT 31 0 4083500399999 ENDENTRY 3 0 4083599999999