ENTRY            30541   20130129                             31583054100000001 
SUBENT        30541001   20130129                             31583054100100001 
BIB                 16         32                                 3054100100002 
TITLE      Energy measurements of delayed neutron groups from 235U3054100100003 
AUTHOR     (A.Naeem)                                              3054100100004 
INSTITUTE  (3SARRIY)                                              3054100100005 
REFERENCE  (J,ESJ,4,31,1978)                                      3054100100006 
EXP-YEAR   (1970)                                                 3054100100007 
FACILITY   (REAC,1USAVIP)                                         3054100100008 
INC-SOURCE (REAC) Mechanical beam chopper                         3054100100009 
SAMPLE     (92-U-235,ENR=0.99564) U(3)O(8), 14.935 g U-235 in the 3054100100010 
           target, 3.8 cm diameter, 0.68 cm thickness; natural    3054100100011 
           lead 15.02 g - for background data.                    3054100100012 
METHOD     Collimated neutron beam was pulsed by means of         3054100100013 
            mechanical chopper. Delayed neutrons were counted     3054100100014 
            when neutron beam was blocked                         3054100100015 
PART-DET   (DN)                                                   3054100100016 
DETECTOR   (HE3SP) He-3 detector                                  3054100100017 
ANALYSIS   First, the fraction of each delayed neutron group      3054100100018 
            present in each chopper speed was calculated.         3054100100019 
           Then the average energies for each group could be      3054100100020 
            derived.                                              3054100100021 
CORRECTION Pulse height spectrum was corrected for wall and       3054100100022 
            recoil effects using an inversion matrix technique.   3054100100023 
           Data were corrected also for detector efficiency       3054100100024 
            (as a function of neutron energy) and resolution.     3054100100025 
ERR-ANALYS (DATA-ERR) Main contribution of error was resolution   3054100100026 
            of detector (about 18% at av.energy = 368 keV)        3054100100027 
STATUS     (TABLE) Data from J.Eng.Sci.(Saudi Arabia)4(1978)31    3054100100028 
HISTORY    (19800507C) OS.                                        3054100100029 
           (20090312A) SD:Updated to new date formats,lower case, 3054100100030 
                       made formal corrections.                   3054100100031 
           (20100303A) SD: REACTION codes in Subents 002, 003 were3054100100032 
                       changed according to EXFOR rules.          3054100100033 
           (20130129D) On. Subent 003 deleted. Value added in 002.3054100100034 
ENDBIB              32          0                                 3054100100035 
COMMON               1          3                                 3054100100036 
EN                                                                3054100100037 
EV                                                                3054100100038 
 2.5300E-02                                                       3054100100039 
ENDCOMMON            3          0                                 3054100100040 
ENDSUBENT           39          0                                 3054100199999 
SUBENT        30541002   20130129                             31583054100200001 
BIB                  3          4                                 3054100200002 
REACTION   (92-U-235(N,F)0-NN-1,DL/GRP,KE)                        3054100200003 
ADD-RES    Average energy of delayed neutron groups: ~ 368 keV    3054100200004 
HISTORY    (20100303A) SD: REACTION changed according to new rule 3054100200005 
           (20130129U) On. ADD-RES: Data moved from 30541.003.    3054100200006 
ENDBIB               4          0                                 3054100200007 
NOCOMMON             0          0                                 3054100200008 
DATA                 3          5                                 3054100200009 
HL         DATA       DATA-ERR                                    3054100200010 
SEC        KEV        KEV                                         3054100200011 
 55.72       85.       25.                                        3054100200012 
 22.63      443.       81.                                        3054100200013 
  5.3       379.       76.                                        3054100200014 
  1.91      472.       80.                                        3054100200015 
  0.372     460.       80.                                        3054100200016 
ENDDATA              7          0                                 3054100200017 
ENDSUBENT           16          0                                 3054100299999 
NOSUBENT      30541003   20130129                             31583054100300001 
ENDENTRY             3          0                                 3054199999999