ENTRY 31693 20100508 31453169300000001
SUBENT 31693001 20100508 31453169300100001
BIB 16 41 3169300100002
TITLE Measurements of the thermal neutron cross-sections 3169300100003
and resonance integrals for 186W(n,gamma)187W and 3169300100004
98Mo(n,gamma)99Mo reactions 3169300100005
AUTHOR (A.El Abd) 3169300100006
INSTITUTE (3EGYCAI) 3169300100007
REFERENCE (J,JRN,284,321,2010) 3169300100008
FACILITY (REAC,3EGYCAI) Second Egyptian Research Reactor(ETRR-2)3169300100009
INC-SOURCE 2200 m/s neutrons 3169300100010
SAMPLE Natural W, Mo, and Zr metallic foils of the purity 3169300100011
99.99%; and 0.23 mm, 0.15 mm and 125 mu-m in 3169300100012
thickness altogether with Au samples which are 3169300100013
diluted in Al (0.1%) were wrapped with aluminum 3169300100014
foils and irradiated without Cd shield in two 3169300100015
different positions at the ETRR-2. The irradiation 3169300100016
time varied from 2 to 3 h. 3169300100017
MONITOR ((MONIT1)79-AU-197(N,G)79-AU-198,,SIG,,MXW) 3169300100018
((MONIT2)79-AU-197(N,G)79-AU-198,,RI) 3169300100019
DECAY-MON (79-AU-198-G,2.695D,DG,411.8,0.9558) 3169300100020
DETECTOR (HPGE) The gamma ray spectra were collected using a 3169300100021
p-type coaxial EG&G Ortec HPGe detector, with 29.4% 3169300100022
relative efficiency and 1.66 keV FWHM at 1332.5 keV 3169300100023
of 60Co. 3169300100024
ANALYSIS The neutron spectrum parameters characterizing the 3169300100025
irradiation positions f and alpha were determined 3169300100026
using the activated sets 198Au, 97Zr/97Nb and 3169300100027
95Zr/95Nb. 3169300100028
METHOD The thermal neutron cross-sections and resonance 3169300100029
integrals of the 186W(n,gamma)187W and 3169300100030
98Mo(n,gamma)99Mo reactions were determined via 3169300100031
neutron irradiation without Cd shield in two 3169300100032
different neutron irradiation positions instead of 3169300100033
the traditional method of irradiation with and 3169300100034
without Cd shield in one neutron irradiation position.3169300100035
CORRECTION Neutron self shielding and the deviation from the 3169300100036
1/E law corrections were taken into account. 3169300100037
ERR-ANALYS (DATA-ERR) The uncertainty for thermal cross- 3169300100038
sections and resonance integrals are found less than 3169300100039
13% of the determined values. 3169300100040
STATUS (TABLE) data from the text of JRN,284,321,2010 3169300100041
(APRVD) Entry approved by Dr. A.El Abd 3169300100042
HISTORY (20100508C) SD 3169300100043
ENDBIB 41 0 3169300100044
COMMON 5 3 3169300100045
EN-DUMMY MONIT1 MONIT1-ERR MONIT2 MONIT2-ERR 3169300100046
EV B B B B 3169300100047
0.0253 98.65 0.09 1560. 28. 3169300100048
ENDCOMMON 3 0 3169300100049
ENDSUBENT 48 0 3169300199999
SUBENT 31693002 20100508 31453169300200001
BIB 2 7 3169300200002
REACTION (74-W-186(N,G)74-W-187,,SIG) 3169300200003
DECAY-DATA (74-W-187,23.72HR,DG,134.25,0.094, 3169300200004
DG,479.55,0.218, 3169300200005
DG,551.52,0.0508, 3169300200006
DG,618.26,0.0628, 3169300200007
DG,625.54,0.0117, 3169300200008
DG,685.73,0.273) 3169300200009
ENDBIB 7 0 3169300200010
NOCOMMON 0 0 3169300200011
DATA 2 1 3169300200012
DATA DATA-ERR 3169300200013
B B 3169300200014
38.43 4.0 3169300200015
ENDDATA 3 0 3169300200016
ENDSUBENT 15 0 3169300299999
SUBENT 31693003 20100508 31453169300300001
BIB 2 7 3169300300002
REACTION (74-W-186(N,G)74-W-187,,RI) 3169300300003
DECAY-DATA (74-W-187,23.72HR,DG,134.25,0.094, 3169300300004
DG,479.55,0.218, 3169300300005
DG,551.52,0.0508, 3169300300006
DG,618.26,0.0628, 3169300300007
DG,625.54,0.0117, 3169300300008
DG,685.73,0.273) 3169300300009
ENDBIB 7 0 3169300300010
NOCOMMON 0 0 3169300300011
DATA 2 1 3169300300012
DATA DATA-ERR 3169300300013
B B 3169300300014
502. 65. 3169300300015
ENDDATA 3 0 3169300300016
ENDSUBENT 15 0 3169300399999
SUBENT 31693004 20100508 31453169300400001
BIB 2 6 3169300400002
REACTION (42-MO-98(N,G)42-MO-99,,SIG) 3169300400003
DECAY-DATA (42-MO-99,2.748D,DG,140.51,0.0452, 3169300400004
DG,181.06,0.0599, 3169300400005
DG,366.44,0.0121, 3169300400006
DG,739.50,0.1213, 3169300400007
DG,777.92,0.0426) 3169300400008
ENDBIB 6 0 3169300400009
NOCOMMON 0 0 3169300400010
DATA 2 1 3169300400011
DATA DATA-ERR 3169300400012
B B 3169300400013
0.137 0.014 3169300400014
ENDDATA 3 0 3169300400015
ENDSUBENT 14 0 3169300499999
SUBENT 31693005 20100508 31453169300500001
BIB 2 6 3169300500002
REACTION (42-MO-98(N,G)42-MO-99,,RI) 3169300500003
DECAY-DATA (42-MO-99,2.748D,DG,140.51,0.0452, 3169300500004
DG,181.06,0.0599, 3169300500005
DG,366.44,0.0121, 3169300500006
DG,739.50,0.1213, 3169300500007
DG,777.92,0.0426) 3169300500008
ENDBIB 6 0 3169300500009
NOCOMMON 0 0 3169300500010
DATA 2 1 3169300500011
DATA DATA-ERR 3169300500012
B B 3169300500013
6.47 0.8 3169300500014
ENDDATA 3 0 3169300500015
ENDSUBENT 14 0 3169300599999
ENDENTRY 5 0 3169399999999