ENTRY 40296 20170203 41754029600000001
SUBENT 40296001 20170203 41754029600100001
BIB 10 56 4029600100002
TITLE Absolute measurement the of U-235 and U-238 fission 4029600100003
cross-sections in the Cf-252 fission neutron spectrum. 4029600100004
AUTHOR (V.M.Adamov,L.V.Drapchinskij,G.Yu.Kudryavtsev, 4029600100005
S.S.Kovalenko,K.A.Petrzhak,L.A.Pleskachevskij, 4029600100006
A.M.Sokolov) 4029600100007
REFERENCE (R,INDC(CCP)-180,1982) Final data. 4029600100008
English translation of RI-52 : 4029600100009
(R,RI-52,1976) Khlopin Radium Institute report. 4029600100010
(C,73KIEV,4,21,197305) Preliminary measurement data 4029600100011
INSTITUTE (4RUSRI) 4029600100012
INC-SOURCE (CF252) Spont.fiss.californium-252 . 4029600100013
Prepared by thermoscattering of Cf. 4029600100014
Diameter of Cf foil 3.0+-0.2 mm. 4029600100015
SAMPLE Prepared by high-frequency plasma spraying. U(3)O(8).4029600100016
Non-uniformity less 1%. 4029600100017
Weights were measured by alpha-activity in 2PI geometry4029600100018
in mesh ionization pulse chamber (U-238) and 4029600100019
semi-conductor detector in a small solid angle (U-235).4029600100020
Isotopic analysis was performed by alpha spectrometer. 4029600100021
ANALYSIS Fission cross-section is defined according to 4029600100022
the formula 4029600100023
SIGMAfis=(2PI*A*Nf*R**2)/(N0*P*NUCf*G*K*NCf) 4029600100024
here Nf- a number of fissions for uranium isotope, 4029600100025
N0- Avogadro number, 4029600100026
R- radius of the active foil target, 4029600100027
P- weight of the fissionable material in target, 4029600100028
NUCf- prompt neutron number for Cf-252 from 4029600100029
Second IAEA Panel Meeting on Neutron 4029600100030
Standard Reference Data, Vienna, 20-24 Nov. 4029600100031
1972. 4029600100032
NCf- a number of fissions for Cf-252, 4029600100033
G - geometry factor of experimental setup 4029600100034
K - coefficient of correction for counting errors4029600100035
in Cf-252 FF counting channel, 4029600100036
A - atomic weight of U isotope. 4029600100037
REL-REF (R,,,C,72VIENNA,,1972) 4029600100038
Second IAEA Panel Meeting on Neutron Standard Reference4029600100039
Data, Vienna, 20-24 Nov.1972, IIIC 3. 4029600100040
Reference for NU of Cf-252. 4029600100041
CORRECTION For neutron scattering - 3% . 4029600100042
For fission of impurities in target. 4029600100043
For finite dimensions of the source 4029600100044
HISTORY (19750521C) 4029600100045
(19861021A) Data assigned as preliminary by the 4029600100046
compiler's decision 4029600100047
(20130206A) M.M. Upper -> lower case correction. 4029600100048
Dates were corrected for 4-digits year. 4029600100049
Reference R,INDC(CCP)-180 was added. 4029600100050
BIB information were updated. 4029600100051
Preliminary data were replaced by final. 4029600100052
Detail ERR-ANALYS was added. 4029600100053
KT -> KT-DUMMY; 1.42 -> 1.406 MeV ( as on page 10 of 4029600100054
R,INDC(CCP)-180,1982). 4029600100055
(20170203A) M.M. Subents 002,003 were deleted - 4029600100056
duplicative data of Subents 40547.004, .006, 4029600100057
respectively. 4029600100058
ENDBIB 56 0 4029600100059
NOCOMMON 0 0 4029600100060
ENDSUBENT 59 0 4029600199999
NOSUBENT 40296002 20170203 41754029600200001
NOSUBENT 40296003 20170203 41754029600300001
ENDENTRY 3 0 4029699999999