ENTRY            14814   20230415                             150614814000    1 
SUBENT        14814001   20230415                             150614814001    1 
BIB                 12         28                                 14814001    2 
TITLE      Evidence Against the Existence of 23-Hour V53          14814001    3 
AUTHOR     (R.K.Sheline,J.R.Wilkinson,B.J.Dropesky,T.T.Shull)     14814001    4 
REFERENCE  (J,PR,99,1055(1),1955)                                 14814001    5 
           #doi:10.1103/physrev.99.1055                           14814001    6 
INSTITUTE  (1USAFSU,1USALAS)                                      14814001    7 
FACILITY   (REAC,1USALAS) The Los Alamos Water Boiler.            14814001    8 
INC-SOURCE (REAC) The flux of neutrons greater than 5 MeV, i.e.,  14814001    9 
           3.6*10**10 neutrons/cm2 sec.                           14814001   10 
DETECTOR   (PROPC)                                                14814001   11 
SAMPLE     Spectroscopically pure, normal chromium, 9.5% 53Cr.    14814001   12 
METHOD     (ACTIV,CHSEP) "Spec. pure" normal chromium was         14814001   13 
           irradiated for about 13.4 hours in the fast neutron    14814001   14 
           flux of the Los Alamos Water Boiler. Vanadium was      14814001   15 
           chemically separated from the chromium and the         14814001   16 
           vanadium sample counted in a beta proportional         14814001   17 
           counter. This sample had a maximum beta activity of    14814001   18 
           approximately 3 cpm which might be attributed to       14814001   19 
           23-hour V53. No measurable gamma activity was present. 14814001   20 
ANALYSIS   Assuming 5 MeV to be a reasonable value for the        14814001   21 
           effective threshold for 53Cr(n,p) reaction and using   14814001   22 
           what is considered to be the approximate value of the  14814001   23 
           flux of neutrons greater than 5 MeV, an approximate    14814001   24 
           limit of the average cross section for this reaction   14814001   25 
           was calculated to be approximately 3.4*10**-5 mb.      14814001   26 
DECAY-DATA (23-V-53,23.0HR)                                       14814001   27 
           Compiler's comment: As the title of the paper already  14814001   28 
           suggests, a 23 hr V-53 state is still unknown.         14814001   29 
HISTORY    (20230415C) BP                                         14814001   30 
ENDBIB              28          0                                 14814001   31 
NOCOMMON             0          0                                 14814001   32 
ENDSUBENT           31          0                                 1481400199999 
SUBENT        14814002   20230415                             150614814002    1 
BIB                  2          3                                 14814002    2 
REACTION   (24-CR-53(N,P)23-V-53,,SIG,,SPA)                       14814002    3 
STATUS     (TABLE,,R.K.Sheline+,J,PR,99,1055(1),1955)             14814002    4 
            page 792 of J,PR,94,792,1954.                         14814002    5 
ENDBIB               3          0                                 14814002    6 
NOCOMMON             0          0                                 14814002    7 
DATA                 2          1                                 14814002    8 
EN-MIN     DATA-MAX                                               14814002    9 
MEV        MB                                                     14814002   10 
        5.0    3.4E-05                                            14814002   11 
ENDDATA              3          0                                 14814002   12 
ENDSUBENT           11          0                                 1481400299999 
ENDENTRY             2          0                                 1481499999999