ENTRY 21723 20161001 22532172300000001
SUBENT 21723001 20161001 22532172300100001
BIB 11 32 2172300100002
INSTITUTE (2SWTWUR) Eidgenoessisches Institut fuer Reaktor- 2172300100003
Forschung. 2172300100004
REFERENCE (J,NSE,79,167,198110) - final publ. 2172300100005
((P,NEANDC(OR)-154,12,1980)=(P,INDC(SWT)-14,12,1980)) 2172300100006
Abstract,data for Mo-99,Te-132. 2172300100007
REL-REF (R,,J.K.Dickens+,J,NIM,175,535,1980) - decay-data 2172300100008
of Mo-99 2172300100009
(R,,J.K.Dickens+,J,NSE,73,42,1980) - decay-data of 2172300100010
Sr-92, Y-93, Zr-97, Ba-139, Ba-140 2172300100011
(R,,U.Reus+,R,GSI-79-2,1979) - decay-data of the rest 2172300100012
of the products 2172300100013
- G.Erdtmann and W.Soyka, 'Die gamma-Linien der 2172300100014
Radionuklide,' Chemie, Mannheim, New York (1979). - 2172300100015
decay-data of Cd-115m 2172300100016
- 'A Handbook of Radioactivity Measurement Procedures,2172300100017
NCRP Report No. 58, National Council on Radiation' 2172300100018
Protection and Measurements (1978). - decay-data of 2172300100019
Te-132, Ce-141, Ce-143, Sm-153 2172300100020
AUTHOR (H.N.Erten,A.Gruetter,E.Roessler,H.R.von Gunten) 2172300100021
TITLE Mass distribution in the reactor-neutron-induced 2172300100022
fission of thorium-232 2172300100023
FACILITY (REAC,2SWTWUR) Swimming pool reactor SAPHIR. 2172300100024
INC-SOURCE (REAC) 2172300100025
PART-DET (DG) Decay gammas of the fission products. 2172300100026
ADD-RES (COMP) Comparison with literature both for reactor 2172300100027
neutron and monoenergetic neutron induced fission 2172300100028
of Th-232. 2172300100029
CORRECTION .For Ag-113-m and Cd-115-m formation. 2172300100030
HISTORY (19810119C) G.C. 2172300100031
(19811201A) T.N - 002 was changed and 003 was added. 2172300100032
(20161001A) SD:Updated to new date formats,lower case. 2172300100033
Entry re-compiled. 2172300100034
ENDBIB 32 0 2172300100035
COMMON 1 3 2172300100036
EN-DUMMY 2172300100037
MEV 2172300100038
3.3 2172300100039
ENDCOMMON 3 0 2172300100040
ENDSUBENT 39 0 2172300199999
SUBENT 21723002 20161001 22532172300200001
BIB 13 42 2172300200002
REACTION (90-TH-232(N,F)ELEM/MASS,CUM,FY,,FIS) 2172300200003
MONITOR ((MONIT)90-TH-232(N,F)42-MO-99,CUM,FY,,FIS) 2172300200004
(92-U-235(N,F)ELEM/MASS,CUM,FY,,FIS) 2172300200005
MONIT-REF (,B.F.Rider,R,NEDO-12154-3B,1980)-The thermal-neutron 2172300200006
-induced fission yields of U-238 used in the R method 2172300200007
INC-SPECT Fission neutron spectrum. The thermal neutron flux was 2172300200008
~1.6 x 10**13 n/cm2/s and the fast neutron flux was 2172300200009
~3.3 x 10**12 ncm2/s. 2172300200010
SAMPLE .Th-232 100%, Th(NO3)4.x H2O, 50 mg 2172300200011
.U-235, 99.61%, UO2(NO3)2, 14.4 mu-g. 2172300200012
The sources were wrapped in thin (~4 mg/cm2) aluminum 2172300200013
foils and were placed in quartz tubes. 2172300200014
Samples were irradiated simultaneously, but in 2172300200015
separated positions, in the SAPHIR reactor for 1 h. 2172300200016
METHOD (CHSEP) Radiochemical separation of the fission 2172300200017
products from Th-232(n,f) and U-235(n,f). The 2172300200018
quantity 2172300200019
R=Ast(Th)*A2/(Ast(U)*A4) is measured, were 2172300200020
Ast(Th)= activity of product in Th-232(n,f), 2172300200021
A2= activity of Mo-99 in U-235(n,f), 2172300200022
Ast(U)= activity of product in U-235(n,f), 2172300200023
compilation by Rider(NEDO 12154-3B) was used.2172300200024
A4= activity of Mo-99 in Th-232(n,f). 2172300200025
The yields in thorium fission were then determined 2172300200026
according to Yi(Th) = R*Yi(U)*Yst(Th)/Yst(U) 2172300200027
(GSPEC) gamma-ray spectroscopy. 2172300200028
DETECTOR (GELI ) Ge(Li) detectors. 45 cm3 and 54 cm3. 2172300200029
Resolution about 2 keV at 1332 keV. 2172300200030
(PROPC) Low background proportional counter for Sc-89, 2172300200031
Y-90, and RU-106 counting. 2172300200032
ANALYSIS Gaussian peak fit and decay analysis. 2172300200033
ERR-ANALYS (ERR-T) Total error given, including the statistical 2172300200034
error, the errors in the U-235 reference yields and 2172300200035
(MONIT-ERR) Normalization uncertainty 2172300200036
MISC-COL (MISC1) R-value Y1*Y2/(Y3-Y4) measured. 2172300200037
(MISC2) Number of determinations. 2172300200038
FLAG (1.) Values based on R-method are omitted. 2172300200039
(2.) Determined by beta counting. 2172300200040
(3.) Determined by direct gamma-ray spectroscopy. 2172300200041
STATUS (TABLE) Data taken from Tbl.III,IV of NSE,79,167,1981 2172300200042
(DEP,21723004) data for normalization 2172300200043
HISTORY (20161001A) SD: BIB update. 2172300200044
ENDBIB 42 0 2172300200045
COMMON 4 3 2172300200046
ELEM-NRM MASS-NRM MONIT MONIT-ERR 2172300200047
NO-DIM NO-DIM PC/FIS PC/FIS 2172300200048
42. 99. 2.98 0.15 2172300200049
ENDCOMMON 3 0 2172300200050
DATA 9 36 2172300200051
ELEMENT MASS ISOMER DATA ERR-T MISC1 2172300200052
MISC1-ERR MISC2 FLAG 2172300200053
NO-DIM NO-DIM NO-DIM PC/FIS PC/FIS NO-DIM 2172300200054
NO-DIM NO-DIM NO-DIM 2172300200055
32. 77. 0. 0.0113 0.0017 2172300200056
4. 1. 2172300200057
32. 78. 0.073 0.011 2172300200058
4. 1. 2172300200059
35. 83. 2.13 0.20 8.092172300200060
0.61 3. 2172300200061
35. 84. 3.84 0.31 8.192172300200062
0.64 3. 2172300200063
38. 89. 7.50 0.54 3.172172300200064
0.15 5. 2. 2172300200065
38. 90. 8.21 0.79 2.92172300200066
0.23 2. 2. 2172300200067
38. 91. 7.59 0.42 2.612172300200068
0.03 3. 2172300200069
38. 92. 6.80 0.41 2.352172300200070
0.05 3. 2172300200071
39. 93. 6.76 0.54 2.162172300200072
0.03 2. 2172300200073
40. 95. 5.63 0.31 1.762172300200074
0.02 2. 3. 2172300200075
40. 97. 4.50 0.35 1.552172300200076
0.08 2. 3. 2172300200077
44. 103. 0.158 0.009 0.1062172300200078
0.002 4. 2172300200079
44. 105. 0.0561 0.0046 0.1182172300200080
0.002 4. 2172300200081
44. 106. 0.0487 0.0085 0.2472172300200082
0.4 3. 2. 2172300200083
46. 109. 0.0563 0.0096 3.482172300200084
0.08 5. 2172300200085
46. 112. 0.0774 0.0042 12.132172300200086
0.15 5. 2172300200087
47. 111. 0.0703 0.0056 7.52172300200088
0.15 5. 2172300200089
47. 113. 0. 0.0785 0.0079 11.682172300200090
0.35 5. 2172300200091
48. 115. 0. 0.0506 0.0061 11.212172300200092
0.11 5. 2172300200093
48. 117. 0. 0.050 0.012 12.972172300200094
0.2 5. 2172300200095
48. 117. 1. 0.0227 0.0053 10.32172300200096
0.46 5. 2172300200097
51. 127. 0.0809 0.0078 1.322172300200098
0.02 4. 2172300200099
51. 129. 0.310 0.025 0.8432172300200100
0.008 4. 2172300200101
52. 132. 3.16 0.17 1.52172300200102
0.02 13. 2172300200103
53. 131. 1.80 0.10 1.272172300200104
0.02 3. 2172300200105
53. 134. 0. 6.23 0.56 1.632172300200106
0.07 3. 2172300200107
53. 135. 6.14 0.36 1.992172300200108
0.03 3. 2172300200109
56. 139. 7.11 0.42 2.282172300200110
0.05 3. 2172300200111
56. 140. 8.12 0.45 2.672172300200112
0.03 3. 2172300200113
58. 141. 7.36 0.47 2.592172300200114
0.09 4. 2172300200115
58. 143. 6.96 0.46 2.382172300200116
0.09 4. 2172300200117
58. 144. 7.79 0.49 2.962172300200118
0.09 4. 2172300200119
60. 147. 3.05 0.20 2.742172300200120
0.11 4. 2172300200121
61. 149. 1.16 0.07 2.182172300200122
0.06 4. 2172300200123
61. 151. 0.396 0.03 1.922172300200124
0.1 4. 2172300200125
62. 153. 0.106 0.012 1.332172300200126
0.13 3. 2172300200127
ENDDATA 76 0 2172300200128
ENDSUBENT 127 0 2172300299999
SUBENT 21723003 20161001 22532172300300001
BIB 4 6 2172300300002
REACTION (90-TH-232(N,F)48-CD-117,CUM,FY,,FIS) 2172300300003
MISC-COL (MISC ) Number of determinations. 2172300300004
ERR-ANALYS (ERR-T) Total error. See description in Subent 002 and 2172300300005
STATUS in Subent 003. 2172300300006
STATUS (TABLE) Data taken from Tbl.III of NSE,79,167,1981 2172300300007
(DEP,21723002) Sum of values for Cd-117g and Cd-117m. 2172300300008
ENDBIB 6 0 2172300300009
NOCOMMON 0 0 2172300300010
DATA 5 1 2172300300011
ELEMENT MASS DATA ERR-T MISC 2172300300012
NO-DIM NO-DIM PC/FIS PC/FIS NO-DIM 2172300300013
48. 117. 0.073 0.017 5. 2172300300014
ENDDATA 3 0 2172300300015
ENDSUBENT 14 0 2172300399999
SUBENT 21723004 20161001 22532172300400001
BIB 12 26 2172300400002
REACTION (90-TH-232(N,F)ELEM/MASS,IND,FY,,FIS) 2172300400003
DECAY-DATA (42-MO-99,66.0HR,DG) 2172300400004
(52-TE-132,78.2HR,DG) 2172300400005
INC-SPECT Fission neutrons. The irradiations lasted for ~70 h 2172300400006
and the fission rate amounted to ~1400 fiss/s. 2172300400007
SAMPLE Uniformly electroplated deposits of 6 cm diameter, 2172300400008
containing about 15 mg of Th-232 2172300400009
METHOD (CHSEP) The number of fissions is directly counted, 2172300400010
Mo and Te are chemically separated and gamma-counted. 2172300400011
DETECTOR (FISCH) Aluminium parallel plate type fission counter, 2172300400012
(GELI) Ge(Li)-detectors, 45 cm3, resolution about 2172300400013
2 keV at 1332 keV , and 54 cm3, resolution about 2172300400014
2 keV at 1332. keV. 2172300400015
ANALYSIS .Gaussian peak fit and decay analysis. 2172300400016
COMMENT .Comparison with literature values. 2172300400017
ERR-ANALYS (ERR-T) Total error given. It includes - 2172300400018
(ERR-S) statistical error 2172300400019
in fission fragment counting = 1% 2172300400020
in activity measurements = 2% 2172300400021
in chemical yields = 3% 2172300400022
value in common section was estimated by compiler. 2172300400023
(ERR-SYS) The total systematic error is 4% from uncer- 2172300400024
tainties in decay schemes and detector efficiencies. 2172300400025
MISC-COL (MISC) Number of experiments done. 2172300400026
STATUS (TABLE) Data taken from from Tbl.I of NSE,79,167,1981 2172300400027
HISTORY (20161001T) SD: Subent was added from 21712.002. 2172300400028
ENDBIB 26 0 2172300400029
COMMON 3 3 2172300400030
ERR-S ERR-SYS MISC 2172300400031
PER-CENT PER-CENT NO-DIM 2172300400032
3.7 4. 10. 2172300400033
ENDCOMMON 3 0 2172300400034
DATA 4 2 2172300400035
ELEMENT MASS DATA ERR-T 2172300400036
NO-DIM NO-DIM PC/FIS PC/FIS 2172300400037
42. 99. 2.98 0.15 2172300400038
52. 132. 2.76 0.16 2172300400039
ENDDATA 4 0 2172300400040
ENDSUBENT 39 0 2172300499999
ENDENTRY 4 0 2172399999999