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