ENTRY            41111   20221011                             42094111100000001 
SUBENT        41111001   20221011                             42094111100100001 
BIB                  8         27                                 4111100100002 
TITLE       Measurements of the fission cross section ratios      4111100100003 
            232Th/235U and 234U/235U for 0.13-7.4 MeV neutrons    4111100100004 
AUTHOR     (B.I.Fursov, E.Yu.Baranov, M.P.Klemyshev, B.F.Samylin, 4111100100005 
            G.N.Smirenkin, Yu.M.Turchin)                          4111100100006 
INSTITUTE  (4RUSFEI)                                              4111100100007 
REFERENCE  (J,SJA,71,827,1991) Engl.translation of AE,71,320,1991 4111100100008 
           (J,AE,71,320,1991) Issue 4.                            4111100100009 
           (C,88MITO,,141,1988) Prelim.values in table and figs.  4111100100010 
FACILITY   (VDG,4RUSFEI) Electrostatic accelerators               4111100100011 
INC-SOURCE (P-LI7,D-D,P-T)                                        4111100100012 
CORRECTION Corrected for                                          4111100100013 
            - energy dependence of fission chamber efficiency     4111100100014 
                                                      < or = 1.6% 4111100100015 
            - difference of neutron fluxes through fissile layers 4111100100016 
                                                      < or = 1.1% 4111100100017 
            - fissile impurities and neutron inelastic scattering 4111100100018 
                                                      < or = 0.5 %4111100100019 
            - neutron background of exp. hall - 0.3-0.7 %         4111100100020 
            - neutron background from accompanying reactions -    4111100100021 
              see details in the article.                         4111100100022 
HISTORY    (19921207C) + + Compiled at the centre - CJD + +       4111100100023 
           (20010311U) Date is corrected. 4CCPFEI -> 4RUSFEI.     4111100100024 
           (20151002A) M.M. Ref. of Engl.translation was added.   4111100100025 
            Upper -> lower case correction.                       4111100100026 
            EN-RSL -> EN-RSL-HW. ERR-ANALYS was corrected.        4111100100027 
           (20221011A) ON+VT. Major rev.in 002+003. 004-005 added.4111100100028 
           (20221013U) M.M. Correction of free text.              4111100100029 
ENDBIB              27          0                                 4111100100030 
NOCOMMON             0          0                                 4111100100031 
ENDSUBENT           30          0                                 4111100199999 
SUBENT        41111002   20221011                             42094111100200001 
BIB                  9         29                                 4111100200002 
REACTION   ((90-TH-232(N,F),,SIG)/(92-U-235(N,F),,SIG))           4111100200003 
SAMPLE     - 232Th (678 ug, 232Th content 100%)                   4111100200004 
           - 235U (266 ug and 416 ug, 235U content 99.9955%)      4111100200005 
           (90-TH-232,NAT=1.00)                                   4111100200006 
           (92-U-235,ENR=0.999955)                                4111100200007 
MONITOR    ((90-TH-232(N,F),,SIG)/(92-U-235(N,F),,SIG))           4111100200008 
MONIT-REF  (41111004,B.I.Fursov+,J,SJA,71,827,1991)               4111100200009 
DETECTOR   (FISCH) Two double ionization chambers above 0.85 MeV. 4111100200010 
            FF registration efficiency 98-00 %.                   4111100200011 
           (TRD) Mica detectors below 0.85 MeV                    4111100200012 
ANALYSIS   Ratio measured by Mica detectors was normalized to     4111100200013 
            the ratio measured by ionization chambers at 0.85 MeV 4111100200014 
ERR-ANALYS (ERR-T) Root mean square sum of                        4111100200015 
           (ERR-S,0.5,15.)                                        4111100200016 
            Statistical uncertainty                               4111100200017 
            - in a large part of the energy range        (0.5-1%) 4111100200018 
            - in subthreshold region                     (10-15%) 4111100200019 
           (MONIT-ERR) Reference values of 232Th/235U ratios(1.8%)4111100200020 
           (ERR-1,0.3,0.4) Normalization procedure      (0.3-0.4%)4111100200021 
            does not include MONIT-ERR.                           4111100200022 
           (ERR-2,1.2,3.) Uncertainty due to corrections.         4111100200023 
            Main contributions:                                   4111100200024 
            - uncertainty of measurement of background due to     4111100200025 
           accompanying reactions,              (2-3% at 7.4 MeV) 4111100200026 
            - neutron scattering in subthreshold region  (1.2-2%) 4111100200027 
STATUS     (TABLE) Tables 2 and 3 of J,SJA,71,827,1991            4111100200028 
           (DEP,41111004) 232Th/235U from absolute measurement    4111100200029 
HISTORY    (20221011A) ON+VT. DATA: 0.0468 -> 0.0469 at 1.40 MeV; 4111100200030 
            ERR-ANALYS updated. MONIT-ERR moved to COMMON.        4111100200031 
ENDBIB              29          0                                 4111100200032 
COMMON               1          3                                 4111100200033 
MONIT-ERR                                                         4111100200034 
PER-CENT                                                          4111100200035 
 1.8                                                              4111100200036 
ENDCOMMON            3          0                                 4111100200037 
DATA                 5         67                                 4111100200038 
EN         EN-RSL-HW  DATA       ERR-T      MONIT                 4111100200039 
MEV        KEV        NO-DIM     PER-CENT   NO-DIM                4111100200040 
 0.13        32.         1.3 E-06 12.                             4111100200041 
 0.35        40.         3.7 E-06 15.                             4111100200042 
 0.40        38.         2.4 E-06 13.                             4111100200043 
 0.45        36.         4.3 E-06 14.                             4111100200044 
 0.50        35.         4.6 E-06 13.                             4111100200045 
 0.55        34.         3.6 E-06 15.                             4111100200046 
 0.60        33.         7.7 E-06 11.                             4111100200047 
 0.65        32.         9.5 E-06 12.                             4111100200048 
 0.70        32.         2.3 E-05  9.2                            4111100200049 
 0.75        31.         3.5 E-05  8.4                            4111100200050 
 0.80        31.         1.03E-04  7.1                            4111100200051 
 0.85        31.         1.70E-04  6.8                            4111100200052 
 0.90        30.         4.11E-04  6.4                            4111100200053 
 0.95        30.         7.67E-04  5.8                            4111100200054 
 1.00        31.         1.15E-03  5.5                            4111100200055 
 1.05        32.         1.38E-03  3.8                            4111100200056 
 1.10        33.         1.79E-03  4.4                            4111100200057 
 1.15        33.         2.98E-03  5.0                            4111100200058 
 1.20        33.         4.91E-03  4.2                            4111100200059 
 1.25        34.         9.28E-03  3.7                            4111100200060 
 1.30        34.         0.0214    4.0                            4111100200061 
 1.35        34.         0.0365    3.3                            4111100200062 
 1.40        34.         0.0469    2.9                            4111100200063 
 1.45        35.         0.0539    2.6                            4111100200064 
 1.50        35.         0.0674    2.9       0.0679               4111100200065 
 1.55        35.         0.0871    2.8                            4111100200066 
 1.60        36.         0.0926    2.4                            4111100200067 
 1.65        36.         0.0823    2.2                            4111100200068 
 1.70        36.         0.0742    2.3                            4111100200069 
 1.80        72.         0.0763    2.4                            4111100200070 
 1.90        71.         0.0926    2.2                            4111100200071 
 2.0         71.         0.0994    2.2       0.0992               4111100200072 
 2.1         70.         0.106     2.2                            4111100200073 
 2.2         70.         0.113     2.2                            4111100200074 
 2.3         69.         0.102     2.2                            4111100200075 
 2.4         69.         0.0962    2.3                            4111100200076 
 2.5         68.         0.100     2.4       0.0989               4111100200077 
 2.6         68.         0.102     2.4                            4111100200078 
 2.7         67.         0.107     2.3                            4111100200079 
 2.8         66.         0.112     2.4                            4111100200080 
 2.9         66.         0.117     2.4                            4111100200081 
 3.0         65.         0.118     2.5       0.1199               4111100200082 
 3.1         66.         0.121     2.6                            4111100200083 
 3.2         66.         0.124     2.6                            4111100200084 
 3.3         66.         0.124     2.7                            4111100200085 
 3.4         66.         0.127     2.8                            4111100200086 
 3.5         66.         0.127     2.9                            4111100200087 
 3.6         67.         0.132     2.9                            4111100200088 
 3.8        228.         0.134     2.8                            4111100200089 
 4.0        167.         0.136     2.6                            4111100200090 
 4.2        156.         0.142     2.7                            4111100200091 
 4.4        138.         0.142     2.6                            4111100200092 
 4.6        130.         0.144     2.7                            4111100200093 
 4.8        116.         0.144     2.8                            4111100200094 
 5.0        110.         0.144     2.8                            4111100200095 
 5.2        105.         0.147     2.8                            4111100200096 
 5.4        103.         0.148     2.9                            4111100200097 
 5.6        102.         0.145     3.0                            4111100200098 
 5.8        130.         0.144     3.2                            4111100200099 
 6.0        126.         0.151     3.3                            4111100200100 
 6.2        122.         0.171     3.5                            4111100200101 
 6.4        118.         0.199     3.7                            4111100200102 
 6.6        117.         0.236     3.7                            4111100200103 
 6.8        117.         0.263     4.0                            4111100200104 
 7.0        118.         0.266     4.1                            4111100200105 
 7.2        120.         0.264     4.4                            4111100200106 
 7.4        122.         0.255     4.8                            4111100200107 
ENDDATA             69          0                                 4111100200108 
ENDSUBENT          107          0                                 4111100299999 
SUBENT        41111003   20221011                             42094111100300001 
BIB                  8         26                                 4111100300002 
REACTION   ((92-U-234(N,F),,SIG)/(92-U-235(N,F),,SIG))            4111100300003 
SAMPLE     - 234U (393 ug, 234U content 98.04%)                   4111100300004 
           - 235U (266 ug and 416 ug, 235U content 99.9955%)      4111100300005 
           (92-U-234,ENR=0.9804)                                  4111100300006 
           (92-U-235,ENR=0.999955)                                4111100300007 
MONITOR    ((92-U-234(N,F),,SIG)/(92-U-235(N,F),,SIG))            4111100300008 
MONIT-REF  (41111005,B.I.Fursov+,J,SJA,71,827,1991)               4111100300009 
DETECTOR   (FISCH) Two double ionization chambers                 4111100300010 
            FF registration efficiency 98-00 %.                   4111100300011 
ERR-ANALYS (ERR-T) Root mean square sum of                        4111100300012 
           (ERR-S,0.3,3.)                                         4111100300013 
            Statistical uncertainty                               4111100300014 
            - in a large part of the energy range       (0.3-0.8%)4111100300015 
            - in subthreshold region                     (1.5-3.%)4111100300016 
           (MONIT-ERR) Reference values of 234U/235U ratios (1.6%)4111100300017 
           (ERR-1,0.3,0.4) Normalization procedure      (0.3-0.4%)4111100300018 
            does not include MONIT-ERR.                           4111100300019 
           (ERR-2,1.2,3.) Uncertainty due to corrections.         4111100300020 
            Main contributions:                                   4111100300021 
            - uncertainty of measurement of background due to     4111100300022 
           accompanying reactions,              (2-3% at 7.4 MeV) 4111100300023 
            - neutron scattering in subthreshold region  (1.2-2%) 4111100300024 
STATUS     (TABLE) Tables 2 and 3 of J,SJA,71,827,1991            4111100300025 
           (DEP,41111005) 234U/235U from absolute measurement     4111100300026 
HISTORY    (20221011A) ON+VT. ERR-ANALYS updated.                 4111100300027 
            MONIT-ERR moved to COMMON.                            4111100300028 
ENDBIB              26          0                                 4111100300029 
COMMON               1          3                                 4111100300030 
MONIT-ERR                                                         4111100300031 
PER-CENT                                                          4111100300032 
 1.6                                                              4111100300033 
ENDCOMMON            3          0                                 4111100300034 
DATA                 5         71                                 4111100300035 
EN         EN-RSL-HW  DATA       ERR-T      MONIT                 4111100300036 
MEV        KEV        NO-DIM     PER-CENT   NO-DIM                4111100300037 
 0.13        32.       0.0230     3.7                             4111100300038 
 0.17        31.       0.0277     2.9                             4111100300039 
 0.21        29.       0.0382     2.7                             4111100300040 
 0.25        26.       0.0486     2.8                             4111100300041 
 0.30        24.       0.0952     2.5                             4111100300042 
 0.35        40.       0.137      2.3                             4111100300043 
 0.40        38.       0.202      2.2                             4111100300044 
 0.45        36.       0.309      2.1                             4111100300045 
 0.50        35.       0.448      2.0                             4111100300046 
 0.55        34.       0.573      1.9                             4111100300047 
 0.60        33.       0.659      1.9                             4111100300048 
 0.65        32.       0.755      1.9                             4111100300049 
 0.70        32.       0.900      1.9                             4111100300050 
 0.75        31.       1.088      1.8                             4111100300051 
 0.80        31.       1.160      1.7                             4111100300052 
 0.85        31.       1.050      1.7                             4111100300053 
 0.90        30.       0.988      1.7                             4111100300054 
 0.95        30.       0.932      1.7                             4111100300055 
 1.00        31.       0.919      1.7         0.912               4111100300056 
 1.05        32.       0.933      1.7                             4111100300057 
 1.10        33.       0.972      1.6                             4111100300058 
 1.15        33.       0.976      1.7                             4111100300059 
 1.20        33.       1.001      1.8                             4111100300060 
 1.25        34.       1.002      1.7                             4111100300061 
 1.30        34.       1.022      1.8                             4111100300062 
 1.35        34.       1.059      1.8                             4111100300063 
 1.40        34.       1.059      1.8                             4111100300064 
 1.45        35.       1.067      1.7                             4111100300065 
 1.50        35.       1.107      1.7         1.112               4111100300066 
 1.55        35.       1.138      1.7                             4111100300067 
 1.60        36.       1.161      1.6                             4111100300068 
 1.65        36.       1.170      1.6                             4111100300069 
 1.70        36.       1.185      1.6                             4111100300070 
 1.80        72.       1.201      1.6                             4111100300071 
 1.90        71.       1.203      1.6                             4111100300072 
 2.0         71.       1.199      1.7         1.192               4111100300073 
 2.1         70.       1.182      1.7                             4111100300074 
 2.2         70.       1.175      1.6                             4111100300075 
 2.3         69.       1.177      1.7                             4111100300076 
 2.4         69.       1.187      1.7                             4111100300077 
 2.5         68.       1.196      1.7         1.191               4111100300078 
 2.6         68.       1.204      1.6                             4111100300079 
 2.7         67.       1.219      1.7                             4111100300080 
 2.8         66.       1.233      1.8                             4111100300081 
 2.9         66.       1.239      1.7                             4111100300082 
 3.0         65.       1.240      1.8         1.246               4111100300083 
 3.1         66.       1.253      1.8                             4111100300084 
 3.2         66.       1.250      1.8                             4111100300085 
 3.3         66.       1.250      2.0                             4111100300086 
 3.4         66.       1.255      2.1                             4111100300087 
 3.5         66.       1.261      2.2                             4111100300088 
 3.6         67.       1.270      2.4                             4111100300089 
 3.8        228.       1.275      2.2                             4111100300090 
 4.0        167.       1.276      2.2                             4111100300091 
 4.2        156.       1.271      2.3                             4111100300092 
 4.4        138.       1.272      2.2                             4111100300093 
 4.6        130.       1.262      2.4                             4111100300094 
 4.8        116.       1.246      2.4                             4111100300095 
 5.0        110.       1.230      2.5                             4111100300096 
 5.2        105.       1.242      2.1                             4111100300097 
 5.4        103.       1.256      2.2                             4111100300098 
 5.6        102.       1.259      2.2                             4111100300099 
 5.8        130.       1.257      2.1                             4111100300100 
 6.0        126.       1.230      2.3                             4111100300101 
 6.2        122.       1.191      2.2                             4111100300102 
 6.4        118.       1.169      2.3                             4111100300103 
 6.6        117.       1.152      2.4                             4111100300104 
 6.8        117.       1.159      2.6                             4111100300105 
 7.0        118.       1.163      2.6                             4111100300106 
 7.2        120.       1.180      2.7                             4111100300107 
 7.4        122.       1.190      2.8                             4111100300108 
ENDDATA             73          0                                 4111100300109 
ENDSUBENT          108          0                                 4111100399999 
SUBENT        41111004   20221011                             42094111100400001 
BIB                  7         10                                 4111100400002 
REACTION   ((90-TH-232(N,F),,SIG)/(92-U-235(N,F),,SIG))           4111100400003 
SAMPLE     232Th (260 ug,232Th content 99.2%+235U content 0.724%),4111100400004 
           232Th (425 ug,232Th content 99.6%+235U content 0.359%).4111100400005 
ANALYSIS   Normalized at the thermal field (Cd ratio >20)         4111100400006 
DETECTOR   (FISCH) Ionization chamber                             4111100400007 
ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 4111100400008 
            article.                                              4111100400009 
STATUS     (TABLE) Table 2 of J,SJA,71,827,1991                   4111100400010 
HISTORY    (20221011C) ON+VT . MONIT values were transmitted from 4111100400011 
            Subent .002                                           4111100400012 
ENDBIB              10          0                                 4111100400013 
NOCOMMON             0          0                                 4111100400014 
DATA                 3          4                                 4111100400015 
EN         DATA       DATA-ERR                                    4111100400016 
MEV        NO-DIM     NO-DIM                                      4111100400017 
 1.5        0.0679     0.0014                                     4111100400018 
 2.0        0.0992     0.0015                                     4111100400019 
 2.5        0.0989     0.0019                                     4111100400020 
 3.0        0.1199     0.0020                                     4111100400021 
ENDDATA              6          0                                 4111100400022 
ENDSUBENT           21          0                                 4111100499999 
SUBENT        41111005   20221011                             42094111100500001 
BIB                  7          9                                 4111100500002 
REACTION   ((92-U-234(N,F),,SIG)/(92-U-235(N,F),,SIG))            4111100500003 
SAMPLE     234U (110 ug,234U content 93.3%+235U content 6.70%)    4111100500004 
ANALYSIS   Normalized at the thermal field (Cd ratio >20)         4111100500005 
DETECTOR   (FISCH) Ionization chamber                             4111100500006 
ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 4111100500007 
            article.                                              4111100500008 
STATUS     (TABLE) Table 2 of J,SJA,71,827,1991                   4111100500009 
HISTORY    (20221011C) ON+VT . MONIT values were transmitted from 4111100500010 
            Subent .003                                           4111100500011 
ENDBIB               9          0                                 4111100500012 
NOCOMMON             0          0                                 4111100500013 
DATA                 3          5                                 4111100500014 
EN         DATA       DATA-ERR                                    4111100500015 
MEV        NO-DIM     PER-CENT                                    4111100500016 
 1.0        0.912      0.015                                      4111100500017 
 1.5        1.112      0.018                                      4111100500018 
 2.0        1.192      0.018                                      4111100500019 
 2.5        1.191      0.018                                      4111100500020 
 3.0        1.246      0.020                                      4111100500021 
ENDDATA              7          0                                 4111100500022 
ENDSUBENT           21          0                                 4111100599999 
ENDENTRY             5          0                                 4111199999999