ENTRY 41271 20160605 41764127100000001 SUBENT 41271001 20160605 41764127100100001 BIB 13 40 4127100100002 TITLE Californium-249 fission cross section in the neutron 4127100100003 energy range 0.16 - 1.6 MeV 4127100100004 AUTHOR (P.E.Vorotnikov,B.M.Gokhberg,S.M.Dubrovina, 4127100100005 V.N.Kosyakov,G.A.Otroshchenko,L.V.Chistyakov, 4127100100006 V.A.Shigin,V.M.Shubko) 4127100100007 INSTITUTE (4RUSKUR) 4127100100008 REFERENCE (J,YF,15,(1),34,1972) Graphs are given 4127100100009 (J,SNP,15,20,1972) Engl.transl. of YF,15,(1),34,1972 4127100100010 (P,YFI-13,17,1972) Data tables are given 4127100100011 (R,INDC(CCP)-032,21,1972) Engl.transl. of YFI-13,17,1974127100100012 REL-REF (I,,P.E.Vorotnikov+,J,YF,5,(2),295,1967) 4127100100013 (I,,P.E.Vorotnikov+,J,SNP,5,207,1967) Engl.translation 4127100100014 of YF,5,295,1967 . 4127100100015 Details of glass detectors technique. 4127100100016 FACILITY (VDG,4RUSKUR) Van-de-Graaff electrostatic accelerator 4127100100017 INC-SOURCE (P-T,P-LI7) 4127100100018 MONITOR .Absolute measurement 4127100100019 Neutron flux was monitored by boron counter; 4127100100020 absolute flux value was determined by comparison with 4127100100021 the flux of standared neutron source. 4127100100022 DETECTOR (GLASD) Glass detector for fiss.fragments detection 4127100100023 (BF3) Boron counter for neutron flux monitoring 4127100100024 DECAY-DATA (98-CF-249,360.0YR,A) 4127100100025 Cf-249, 2.0E+09yr - lower boundary of T1/2(sf). 4127100100026 SAMPLE Californium layer was deposited by electrolysis 4127100100027 on platinum backing 0.2 mm thickness. Diameter of 4127100100028 Cf layer is 4.5 mm, total weight of californium is 4127100100029 5.2E-07 gram, admixture of Cf-252 is 6.0E-14 gram 4127100100030 Cf-249, 360.0yr alpha decay; 4127100100031 Cf-249, 2.0E+09yr - Lower boundary of T1/2(sf). 4127100100032 CORRECTION .Corrections were made on Cf-249 fission- 10%, 4127100100033 on spontaneous fission of Cf-252 - no more than 4127100100034 50% in the worse case 4127100100035 HISTORY (19970808C) + + Compiled at the centre - CJD + + 4127100100036 (20160605U) SD:Updated to new date formats,lower case. 4127100100037 Page of ref. SNP,15 corrected (17 -> 20). 4127100100038 DECAY-DATA corrected. 4127100100039 (20170710U) M.M. Previous correction of SD was 4127100100040 checked at CJD. Ref.INDC(CCP)-032,21,1972 was added. 4127100100041 REL-REFs were added . 4127100100042 ENDBIB 40 0 4127100100043 NOCOMMON 0 0 4127100100044 ENDSUBENT 43 0 4127100199999 SUBENT 41271002 20160605 41764127100200001 BIB 5 9 4127100200002 REACTION (98-CF-249(N,F),,SIG,,AV) Averaged over 4127100200003 energy interval given in the data section 4127100200004 ERR-ANALYS (DATA-ERR) Total error. Structure of errors not given 4127100200005 STATUS (TABLE) Data are taken from Subent 87001003 4127100200006 COMMENT Of compiler M.M. Source of data is not clear. 4127100200007 HISTORY (19970808T) Converted from Subent 87001003 (there 4127100200008 Cf-252 is erroneously given instead of Cf-249). 4127100200009 (20170710U) M.M. COMMENT was added. 4127100200010 ERR-T -> DATA-ERR 4127100200011 ENDBIB 9 0 4127100200012 NOCOMMON 0 0 4127100200013 DATA 4 1 4127100200014 EN-MIN EN-MAX DATA DATA-ERR 4127100200015 KEV KEV B B 4127100200016 400. 600. 1.8 0.3 4127100200017 ENDDATA 3 0 4127100200018 ENDSUBENT 17 0 4127100299999 SUBENT 41271003 20160605 41764127100300001 BIB 6 8 4127100300002 REACTION (98-CF-249(N,F),,SIG) 4127100300003 REFERENCE (J,NP/A,150,56,1970) Data for Cf-249 at 0.4MeV 4127100300004 REL-REF (O,41271001,P.E.Vorotnikov+,J,NP/A,150,56,1970) 4127100300005 Data for Bk-249 4127100300006 STATUS (TABLE)From the text, page 60, of NP/A,150,56,1970 4127100300007 ERR-ANALYS (DATA-ERR) Type of error is not explained in article. 4127100300008 HISTORY (19970808C) Compiled at the center - CJD 4127100300009 (20170710U) M.M. REL-REF was added. 4127100300010 ENDBIB 8 0 4127100300011 NOCOMMON 0 0 4127100300012 DATA 3 1 4127100300013 EN DATA DATA-ERR 4127100300014 KEV B B 4127100300015 400. 2.1 0.2 4127100300016 ENDDATA 3 0 4127100300017 ENDSUBENT 16 0 4127100399999 SUBENT 41271004 20160605 41764127100400001 BIB 4 13 4127100400002 REACTION (98-CF-249(N,F),,SIG) 4127100400003 STATUS (TABLE) Data from YFI-13,17,1972 (same on 4127100400004 fig. of YF,15,34) 4127100400005 ERR-ANALYS (DATA-ERR) Errors of the relative measurements only 4127100400006 (ERR-1) Uncertainty in neutron flux of the 4127100400007 standard source (7%) 4127100400008 (ERR-2) Uncertainty in the determination of the 4127100400009 quantity of Cf249 in the fissioning layer (5%) 4127100400010 (ERR-T) Total error ~10% includes DATA-ERR, ERR-1,2. 4127100400011 HISTORY (19970808C) + + Compiled at the center - CJD + + 4127100400012 (20160605U) SD: ERR-1 -> DATA-ERR. ERR-ANALYS update. 4127100400013 (20170710U) M.M. EN-RSL -> EN-RSL-HW, 4127100400014 ERR-T was added. 4127100400015 ENDBIB 13 0 4127100400016 COMMON 3 3 4127100400017 ERR-1 ERR-2 ERR-T 4127100400018 PER-CENT PER-CENT PER-CENT 4127100400019 7. 5. 10. 4127100400020 ENDCOMMON 3 0 4127100400021 DATA 4 16 4127100400022 EN EN-RSL-HW DATA DATA-ERR 4127100400023 MEV KEV B PER-CENT 4127100400024 0.16 40. 3.37 5. 4127100400025 0.25 3.62 17.1 4127100400026 0.31 2.68 4.5 4127100400027 0.40 2.4 4.6 4127100400028 0.51 2.06 4.0 4127100400029 0.61 1.98 4.8 4127100400030 0.71 1.91 5.5 4127100400031 0.81 1.91 4.9 4127100400032 0.91 1.98 3.9 4127100400033 1.01 2.15 2.9 4127100400034 1.10 2.32 3.4 4127100400035 1.20 2.31 3.9 4127100400036 1.30 2.07 3.0 4127100400037 1.39 2.33 5.1 4127100400038 1.49 2.18 3.5 4127100400039 1.58 60. 1.98 6.3 4127100400040 ENDDATA 18 0 4127100400041 ENDSUBENT 40 0 4127100499999 ENDENTRY 4 0 4127199999999