ENTRY            L0264   20201208                             L045L026400000001 
SUBENT        L0264001   20201208                             L045L026400100001 
BIB                 10         22                                 L026400100002 
TITLE      Fission Cross-Section of U235 for Intermediate         L026400100003 
           Velocity Neutrons                                      L026400100004 
AUTHOR     (O.Chamberlain,J.W.Kennedy,E.Segre)                    L026400100005 
REFERENCE  (R,CF-403,1942)                                        L026400100006 
REL-REF    (O,14665001,O.Chamberlain+,R,CF-403,1942) Photo        L026400100007 
           neutron data.                                          L026400100008 
           (I,,G.T.Seaborg+,J,PR,55,808,1939) Ionization chamber  L026400100009 
           description.                                           L026400100010 
INSTITUTE  (1USABRK)                                              L026400100011 
FACILITY   (CYCLO,1USABRK) Production of 24Na sources.            L026400100012 
DETECTOR   (IOCH,GEMUC)  Ionization chamber was filled with freon.L026400100013 
INC-SOURCE (MPH) 3.03 MeV gamma rays of 24Na.                     L026400100014 
METHOD     The radioactive sodium was dissolved in D2O 99% pure,  L026400100015 
           contained in a glass sphere. Two sizes of the spheres  L026400100016 
           were used, a large one of 3.25 cm radius and a small   L026400100017 
           one of 1.93 cm radius. From the gamma intensity and    L026400100018 
           neutron output it is clearly possible to measure       L026400100019 
           cross-sections for photo-disintegration, by            L026400100020 
           introducing the effective path for the gamma-rays in   L026400100021 
           the source. For a homogeneous sphere such path is      L026400100022 
           0.75 times the radius.                                 L026400100023 
HISTORY    (20201208C) BP                                         L026400100024 
ENDBIB              22          0                                 L026400100025 
NOCOMMON             0          0                                 L026400100026 
ENDSUBENT           25          0                                 L026400199999 
SUBENT        L0264002   20201208                             L045L026400200001 
BIB                  2          2                                 L026400200002 
REACTION   (1-H-2(G,N)1-H-1,,SIG)                                 L026400200003 
STATUS     (TABLE) page 1.                                        L026400200004 
ENDBIB               2          0                                 L026400200005 
NOCOMMON             0          0                                 L026400200006 
DATA                 2          1                                 L026400200007 
EN         DATA                                                   L026400200008 
MEV        MB                                                     L026400200009 
       3.03        1.5                                            L026400200010 
ENDDATA              3          0                                 L026400200011 
ENDSUBENT           10          0                                 L026400299999 
SUBENT        L0264003   20201208                             L045L026400300001 
BIB                  2          2                                 L026400300002 
REACTION   (4-BE-9(G,N)4-BE-8,,SIG)                               L026400300003 
STATUS     (TABLE) page 1.                                        L026400300004 
ENDBIB               2          0                                 L026400300005 
NOCOMMON             0          0                                 L026400300006 
DATA                 2          1                                 L026400300007 
EN         DATA                                                   L026400300008 
MEV        MB                                                     L026400300009 
       3.03       0.53                                            L026400300010 
ENDDATA              3          0                                 L026400300011 
ENDSUBENT           10          0                                 L026400399999 
ENDENTRY             3          0                                 L026499999999