ENTRY 23397 20190502 22812339700000001
SUBENT 23397001 20190502 22812339700100001
BIB 15 41 2339700100002
TITLE Measurements of uranium nuclide capture cross section 2339700100003
and total collision cross section 2339700100004
AUTHOR (K.Hanatani) 2339700100005
INSTITUTE (2JPNKTO) 2339700100006
REFERENCE (T,HANATANI,19450911) 2339700100007
Thesis submitted to Kyoto Imperial University 2339700100008
INC-SOURCE (RA-BE) 50 mg Ra+Be in a cylindrical case filled by 2339700100009
paraffin (20 cm diam.). 2339700100010
INC-SPECT Fraction of thermalized neutrons is about 90%. 2339700100011
Epithermal neutrons were removed by Cd foil. 2339700100012
SAMPLE U3O8 (1762 g) and Pb (2000 g) in an iron case (0.5 mm 2339700100013
thick). 529 cm2. 2339700100014
DETECTOR (IOCH) BCl3 gas (848 cm3) for detection of thermal 2339700100015
neutrons at 70 cm from the front of the neutron 2339700100016
source case 2339700100017
METHOD (TRN) Transmissions were measured for U3O8 and Pb 2339700100018
samples irradiated at two locations - 2339700100019
(1) 30 cm upstream side from the ionization chamber, 2339700100020
(2) just before the ionization chamber. 2339700100021
ANALYSIS Measured effective total cross section at samle 2339700100022
position 1 (sig1) and 2 (sig2) were related with the 2339700100023
capture cross section (sigc) and scattering cross 2339700100024
section (sigs) as follows: 2339700100025
sig1(U3O8)=sigc(U3O8)+k1*sigs(U3O8), 2339700100026
sig2(U3O8)=sigc(U3O8)+k2*sigs(U3O8), 2339700100027
sig1(Pb)=k*k1*sigs(Pb), 2339700100028
sig2(Pb)=k*k2*sigs(Pb), 2339700100029
with k=k1=1 assumed according to the the experimental 2339700100030
geometrical condition (sigc(Pb)~0 assumed). 2339700100031
From these equations, sigc(U3O8), sigs(U3O8), sigs(Pb)2339700100032
as well as k2 were determined. 2339700100033
ASSUMED (ASSUM1,8-O-16(N,G)8-O-17,,SIG) 2339700100034
(ASSUM2,8-O-16(N,TOT),,SIG) 2339700100035
REL-REF (R,,M.Kikuchi,J,JMJ,18,188,1936) 2339700100036
Oxygen capture cross section 2339700100037
(R,12634009,J.R.Dunning+,J,PR,48,265,1935) 2339700100038
Oxygen total cross section 2339700100039
ERR-ANALYS (DATA-ERR) No information on the source of uncertainty 2339700100040
STATUS (TABLE) Table in the thesis 2339700100041
HISTORY (20180815C) On 2339700100042
(20190502A) On. Major revisions in 002-005. 2339700100043
ENDBIB 41 0 2339700100044
COMMON 2 3 2339700100045
ASSUM1 ASSUM2 2339700100046
B B 2339700100047
0.1 3.3 2339700100048
ENDCOMMON 3 0 2339700100049
ENDSUBENT 48 0 2339700199999
SUBENT 23397002 20190502 22812339700200001
BIB 2 2 2339700200002
REACTION (92-U-0(N,EL)92-U-0,,SIG,,SPA) 2339700200003
HISTORY (20190502A) On. MEV -> EV 2339700200004
ENDBIB 2 0 2339700200005
NOCOMMON 0 0 2339700200006
DATA 3 1 2339700200007
EN-DUMMY DATA DATA-ERR 2339700200008
EV B B 2339700200009
0.0253 18.5 2.1 2339700200010
ENDDATA 3 0 2339700200011
ENDSUBENT 10 0 2339700299999
SUBENT 23397003 20190502 22812339700300001
BIB 2 2 2339700300002
REACTION (92-U-0(N,G),,SIG,,SPA) 2339700300003
HISTORY (20190502A) On. MEV -> EV 2339700300004
ENDBIB 2 0 2339700300005
NOCOMMON 0 0 2339700300006
DATA 3 1 2339700300007
EN-DUMMY DATA DATA-ERR 2339700300008
EV B B 2339700300009
0.0253 4.0 2.1 2339700300010
ENDDATA 3 0 2339700300011
ENDSUBENT 10 0 2339700399999
SUBENT 23397004 20190502 22812339700400001
BIB 2 2 2339700400002
REACTION (92-U-0(N,TOT),,SIG,,SPA) 2339700400003
HISTORY (20190502A) On. MEV -> EV 2339700400004
ENDBIB 2 0 2339700400005
NOCOMMON 0 0 2339700400006
DATA 3 1 2339700400007
EN-DUMMY DATA DATA-ERR 2339700400008
EV B B 2339700400009
0.0253 22.5 0.5 2339700400010
ENDDATA 3 0 2339700400011
ENDSUBENT 10 0 2339700499999
SUBENT 23397005 20190502 22812339700500001
BIB 2 2 2339700500002
REACTION (82-PB-0(N,TOT),,SIG,,SPA) 2339700500003
HISTORY (20190502A) On. MEV -> EV 2339700500004
ENDBIB 2 0 2339700500005
NOCOMMON 0 0 2339700500006
DATA 3 1 2339700500007
EN-DUMMY DATA DATA-ERR 2339700500008
EV B B 2339700500009
0.0253 11.4 0.2 2339700500010
ENDDATA 3 0 2339700500011
ENDSUBENT 10 0 2339700599999
ENDENTRY 5 0 2339799999999