ENTRY            30536   20240216                                 3053600000001 
SUBENT        30536001   20240216   20240513                      3053600100001 
BIB                  9         21                                 3053600100002 
TITLE      The measurement of the average number of prompt        3053600100003 
            neutrons and the distribution of prompt neutron       3053600100004 
            numbers for 2552Cf spontaneous fission                3053600100005 
AUTHOR     (Zhang Huan-Qiao, Liu Zu-Hua)                          3053600100006 
INSTITUTE  (3CPRAEP)                                              3053600100007 
REFERENCE  (J,CNP,1,9,1979)                                       3053600100008 
METHOD     Liquid-scintillation method                            3053600100009 
DETECTOR   (STANK) 111 litre of toluene-based Gd-loaded           3053600100010 
            scintillation liquid filled in a spherical Al         3053600100011 
            container (60 cm in diameter)                         3053600100012 
           Neutron detection efficiency was calculated by Monte   3053600100013 
            Carlo calculation code,                               3053600100014 
           (FISCH) Spontaneous fission events detected by fast    3053600100015 
            current ionization chamber                            3053600100016 
MONITOR    (1-H-1(N,EL)1-H-1,,SIG)                                3053600100017 
STATUS     (TABLE,,Zhang Huan-Qiao+,J,CNP,1,9,1979) Table 4       3053600100018 
HISTORY    (19800328C) KO.                                        3053600100019 
           (19850215U) OS. Country code corrected.                3053600100020 
           (20090312U) SD: formal corrections.                    3053600100021 
           (20120504U) VS. INC-SOURCE deleted.                    3053600100022 
           (20240216U) On. REFERENCE(CNP): Issue number deleted.  3053600100023 
ENDBIB              21          0                                 3053600100024 
NOCOMMON             0          0                                 3053600100025 
ENDSUBENT           24          0                                 3053600199999 
SUBENT        30536002   20090321                             31373053600200001 
BIB                  3         24                                 3053600200002 
REACTION   (98-CF-252(0,F),PR,NU)                                 3053600200003 
COMMENT    The final detection efficiency for the neutrons from   3053600200004 
           spontaneous fission of Cf-252 is 0.5818 +- 0.0022.     3053600200005 
ERR-ANALYS (DATA-ERR) Corrections and errors in efficiency        3053600200006 
           and Nu(pr) are following.                              3053600200007 
            ** Efficiency **                                      3053600200008 
                                Correction(%)  Relative error(%)  3053600200009 
            Counting statistics                    +- 0.10        3053600200010 
            Pulse pile-up              0.3         +- 0.06        3053600200011 
            Crystal end effect        -0.04        +- 0.008       3053600200012 
            Scattering by carbon      -0.4         +- 0.08        3053600200013 
            Proton multiple scat.     -0.5         +- 0.1         3053600200014 
            Fission n-spectrum                     +- 0.23        3053600200015 
            Anisotroric effect        -1.75        +- 0.26        3053600200016 
               == Sum ==              -2.39        +- 0.388       3053600200017 
            ** Spontaneous fission **                             3053600200018 
                                Correction(%)  Relative error(%)  3053600200019 
            Counting statistics                    +- 0.15        3053600200020 
            Pulse pile-up              1.02        +- 0.10        3053600200021 
            False gate                 0.             0.          3053600200022 
            Efficiency                +2.39        +- 0.388       3053600200023 
            Delay gamma-rays          -0.3         +- 0.07        3053600200024 
            French effect             -0.39        +- 0.2         3053600200025 
               == Sum ==              +2.7         +- 0.48        3053600200026 
ENDBIB              24          0                                 3053600200027 
NOCOMMON             0          0                                 3053600200028 
DATA                 2          1                                 3053600200029 
DATA       DATA-ERR                                               3053600200030 
PRT/FIS    PRT/FIS                                                3053600200031 
 3.7430E+00 1.8000E-02                                            3053600200032 
ENDDATA              3          0                                 3053600200033 
ENDSUBENT           32          0                                 3053600299999 
ENDENTRY             2          0                                 3053699999999