ENTRY            41631   20181224                             41814163100000001 
SUBENT        41631001   20181224                             41814163100100001 
BIB                 11         28                                 4163100100002 
TITLE       Fission of Th232 induced by thermal neutrons.         4163100100003 
INSTITUTE  (4ZZZDUB)                                              4163100100004 
AUTHOR     (E.I.Korneev,V.S.Skobkin,G.N.Flerov)                   4163100100005 
REFERENCE  (J,JET,10,29,1960) Engl.translation of:                4163100100006 
           (J,ZET,37,41,1959)                                     4163100100007 
INC-SOURCE (PHOTO) Sb-124+Be photo neutron source.                4163100100008 
            Be cylinder of 90mm diameter, 80mm length,            4163100100009 
           Sb-124 gamma-emitter as a sphere of 19mm diameter,     4163100100010 
           activity ~6 Curies.                                    4163100100011 
           Intensity of photo-neutron source 10**8 1/sec.         4163100100012 
           Surrounded by paraffin blocks and lead screen of       4163100100013 
           25-25 cm thickness.                                    4163100100014 
INC-SPECT    Main part - ~24keV, ~7% of intensity due to neutrons 4163100100015 
            ~400 keV.                                             4163100100016 
DETECTOR   (IOCH) Multilayer ionization chamber of 18cm diameter, 4163100100017 
           15cm height. Filled with Ar at 1atm pressure.          4163100100018 
            2.4 mg U-natural chamber for neutron flux .           4163100100019 
            Chamber was surrounded by Cd absorber and             4163100100020 
            B (~0.6g/cm2) absorber.                               4163100100021 
METHOD      Measurements with and without Cd absorber surrounding 4163100100022 
           the chamber.                                           4163100100023 
SAMPLE     Admixture of U < 10**-7 .                              4163100100024 
           Oxide ThO(2), deposited on Al plates ot total area     4163100100025 
           ~ 2300 cm3 ; 2.5 g mass.                               4163100100026 
CORRECTION  Photo-fission was found to be negligible.             4163100100027 
            Fission by fast neutrons was very small.              4163100100028 
HISTORY    (20171212C)  M.M.                                      4163100100029 
           (20181224U) J,JET,37, -> J,JET,10,                     4163100100030 
ENDBIB              28          0                                 4163100100031 
NOCOMMON             0          0                                 4163100100032 
ENDSUBENT           31          0                                 4163100199999 
SUBENT        41631002   20181224                             41814163100200001 
BIB                  3          4                                 4163100200002 
REACTION   (90-TH-232(N,F),,SIG,,SPA)                             4163100200003 
STATUS     (TABLE) Text, page 31 of J.Exp.Theor.Physics,10,29,19604163100200004 
ERR-ANALYS (DATA-ERR) Type of error is not explained in the       4163100200005 
                      article                                     4163100200006 
ENDBIB               4          0                                 4163100200007 
NOCOMMON             0          0                                 4163100200008 
DATA                 3          1                                 4163100200009 
EN-DUMMY   DATA       DATA-ERR                                    4163100200010 
EV         MB         MB                                          4163100200011 
 0.0253     0.06       0.02                                       4163100200012 
ENDDATA              3          0                                 4163100200013 
ENDSUBENT           12          0                                 4163100299999 
ENDENTRY             2          0                                 4163199999999