ENTRY            22737   20191116                             22832273700000001 
SUBENT        22737001   20191116                             22832273700100001 
BIB                 15         59                                 2273700100002 
TITLE       Measurement of thermal neutron cross section and      2273700100003 
            resonance integral of the reaction                    2273700100004 
            137-Cs(n,gamma)138-Cs                                 2273700100005 
AUTHOR     (T.Sekine,Y.Hatsukawa,Katsutoshi Kobayashi,H.Harada,   2273700100006 
           H.Watanabe,T.Katoh)                                    2273700100007 
INSTITUTE  (2JPNJAE)  T.Sekine, Y.Hatsukawa, K.Kobayashi - Dept.  2273700100008 
                     of Radioisotopes                             2273700100009 
           (2JPNPNC)  H.Harada, H.Watanabe - Nucl. Fuel Techn.    2273700100010 
                     Development Division                         2273700100011 
           (2JPNNAG)  T.Katoh - Dept. of Nucl. Engineering        2273700100012 
REFERENCE  (J,NST,30,1099,1993)  Main reference, data and         2273700100013 
                          experimental details                    2273700100014 
           (J,NST,37,827,2000) Revised value given                2273700100015 
           ((S,JAERI-M-91-032,199,1991)=                          2273700100016 
           (S,NEANDC(J)-160,199,1991)=                            2273700100017 
           (S,INDC(JPN)-148,199,1991)) - first present. on Conf.  2273700100018 
           (C,91JUELIC,,57,1991) (final sig0,RI)                  2273700100019 
FACILITY   (REAC,2JPNJAE)  JRR-4 swimming pool reactor            2273700100020 
INC-SOURCE (REAC)                                                 2273700100021 
INC-SPECT  .Epithermal neutron spectrum variates according to     2273700100022 
            1/E law                                               2273700100023 
DETECTOR   (HPGE)  90% efficiency relative to 3" times 3" NaI(Tl) 2273700100024 
            detector, 2.3 keV resolution at 1.3 MeV gamma energy  2273700100025 
            - for Cs-137/Cs-138 measurement.                      2273700100026 
            Monitor samples Co-60 and Au-198 were measured with   2273700100027 
            another HPGE detector, 24% efficiency and 2.0 keV     2273700100028 
            resolution at 1.3 MeV                                 2273700100029 
ASSUMED    (ASSUM1,27-CO-59(N,G)27-CO-60,,SIG)                    2273700100030 
           (ASSUM2,79-AU-197(N,G)79-AU-198,,SIG)                  2273700100031 
METHOD     (ACTIV)                                                2273700100032 
           (CADMB)  Modified cadmium ratio method. Irradiation    2273700100033 
             produced with (10 min) and without (2 min for Run 1, 2273700100034 
             10 min for Run 2) cadmium shield                     2273700100035 
           (STTA)   Simultaneous irradiation of sample and        2273700100036 
                    monitor wires                                 2273700100037 
           (CHSEP)                                                2273700100038 
SAMPLE     .0.4 MBq of Cs-137 was used as a sample contained in   2273700100039 
            a 0.003 liters of Ca-Cl solution which was then       2273700100040 
            evaporated to dryness and deposited at the bottom     2273700100041 
            of the bottle as a thin disk 7 mm diam. and less than 2273700100042 
            0.5 mm thick. Accurate number of Cs-137 atoms was     2273700100043 
            determined relative to Cs-138 product atoms about     2273700100044 
            30 min after irradiation                              2273700100045 
           .Monitor samples were 0.475% Co/Al and 0.061% Au/Al    2273700100046 
            alloys wires 0.76 and 0.51 mm diameter, 3 mm long     2273700100047 
            sticked on the outside of the sample bottle.          2273700100048 
DECAY-DATA (55-CS-137,30.17YR,DG,662.,0.85)                       2273700100049 
           (55-CS-138-G,33.4MIN,DG,1436.,0.750)                   2273700100050 
CORRECTION   Corrections for self-absorption of gammas in sample  2273700100051 
ERR-ANALYS (DATA-ERR)  Sum error of counting efficiency, error of 2273700100052 
            the neutron flux determination and statistical error  2273700100053 
           (ERR-1)     Error of the counting efficiency at the    2273700100054 
                       67% confidence level                       2273700100055 
HISTORY    (20060203C)  + + SM                                    2273700100056 
           (20180429A) Ref. on JAERI-M-91-032 was added.          2273700100057 
            Subent 004 added.                                     2273700100058 
           (20190830A) SD:ref. added. Small corrections in Subents2273700100059 
           MONITOR -> ASSUMED. Ref.NST,37,827,2000 added.         2273700100060 
           (20191116U) SD: Ref. 91JUELIC,,57,1991 added.          2273700100061 
ENDBIB              59          0                                 2273700100062 
COMMON               3          3                                 2273700100063 
MONIT1     MONIT2     ERR-1                                       2273700100064 
B          B          PER-CENT                                    2273700100065 
  37.2        98.8        3.0                                     2273700100066 
ENDCOMMON            3          0                                 2273700100067 
ENDSUBENT           66          0                                 2273700199999 
SUBENT        22737002   20180429                             22702273700200001 
BIB                  4          9                                 2273700200002 
REACTION   (55-CS-137(N,G)55-CS-138,,SIG)                         2273700200003 
REL-REF    (A,22174002,H.Harada+,J,NST,27,577,1990) First         2273700200004 
              measurement of the 137-Cs(n,gamma) sigma without    2273700200005 
              Cd filter                                           2273700200006 
           (D,12021002,D.C.Stupegia,J,JNE/A,12,16,1960)           2273700200007 
STATUS     (TABLE) From table 4 of Nucl.Sci.Tech.30(1993)1099     2273700200008 
           (COREL,22174002)                                       2273700200009 
           (SPSDD,22737004)                                       2273700200010 
HISTORY    (20180429U) SD: STATUS 'SPSDD' updated.                2273700200011 
ENDBIB               9          0                                 2273700200012 
NOCOMMON             0          0                                 2273700200013 
DATA                 3          1                                 2273700200014 
EN         DATA       DATA-ERR                                    2273700200015 
EV         B          B                                           2273700200016 
   2.53E-02   0.253      0.022                                    2273700200017 
ENDDATA              3          0                                 2273700200018 
ENDSUBENT           17          0                                 2273700299999 
SUBENT        22737003   20190830                             22822273700300001 
BIB                  3          3                                 2273700300002 
REACTION   (55-CS-137(N,G)55-CS-138,,RI)                          2273700300003 
STATUS     (TABLE) From table 6 of Nucl.Sci.Tech.,30(1993)1099    2273700300004 
HISTORY    (20190830U) SD: STATUS updated.                        2273700300005 
ENDBIB               3          0                                 2273700300006 
NOCOMMON             0          0                                 2273700300007 
DATA                 3          1                                 2273700300008 
EN-MIN     DATA       DATA-ERR                                    2273700300009 
EV         B          B                                           2273700300010 
  0.5         0.36       0.07                                     2273700300011 
ENDDATA              3          0                                 2273700300012 
ENDSUBENT           11          0                                 2273700399999 
SUBENT        22737004   20190830                             22822273700400001 
BIB                  4          9                                 2273700400002 
REACTION   (55-CS-137(N,G)55-CS-138,,SIG,,SPA)                    2273700400003 
                  revised effective cross section                 2273700400004 
COMMENT     Revised data taking into account the 138Cs metastable 2273700400005 
            production properly                                   2273700400006 
STATUS     (TABLE) text on p.830 of Nucl.Sci.Tech.,37(200)827     2273700400007 
           (COREL,22174004) 0.1 MBq sample irradiated at JRR-4    2273700400008 
           (COREL,22649003) 0.37 MBq sample irradiated at KUR     2273700400009 
HISTORY    (20180429C)  SD                                        2273700400010 
           (20190830U) SD: STATUS updated.                        2273700400011 
ENDBIB               9          0                                 2273700400012 
NOCOMMON             0          0                                 2273700400013 
DATA                 3          1                                 2273700400014 
EN-DUMMY   DATA       DATA-ERR                                    2273700400015 
EV         B          B                                           2273700400016 
   2.53E-02    0.29       0.02                                    2273700400017 
ENDDATA              3          0                                 2273700400018 
ENDSUBENT           17          0                                 2273700499999 
ENDENTRY             4          0                                 2273799999999