ENTRY 10635 20190722 14541063500000001
SUBENT 10635001 20190722 14541063500100001
BIB 12 40 1063500100002
TITLE Measurement of the uranium-238 to uranium-235 fission 1063500100003
cross-section ratio between 0.1 and 25 MeV 1063500100004
AUTHOR (F.C.Difilippo, R.B.Perez, G.de Saussure, D.K.Olsen, 1063500100005
R.W.Ingle) 1063500100006
INSTITUTE (1USAORL) 1063500100007
REFERENCE (J,NSE,68,43,1978) 1063500100008
(C,76ANL,,114,1976) Prelim. data above 2 MeV in table 1063500100009
FACILITY (LINAC,1USAORL) ORELA 1063500100010
INC-SOURCE (PHOTO) 1063500100011
DETECTOR (FISCH) 1063500100012
Ten-section large fission chamber has first 8 Al plates1063500100013
coated with 238U (less than 2-ppm impurities) and 1063500100014
last 2 plates coated with 235U (less than 0.12% 1063500100015
impurities). Only the counting rates from the last 1063500100016
238U plate and first 235U plate were utilized. 1063500100017
Three-section small fission chamber was uesd for 1063500100018
normalization. The inner section is mixture of 238U 1063500100019
and 235U sandwiched between sections of high purity 1063500100020
235U coatings. 1063500100021
METHOD (TOF) Chamber at 40 m station of flight path #6. 1063500100022
Pulse width was 5 ns and repetition rate was 1063500100023
800 pulse/sec. 1063500100024
Background minimized by collimation of beam and cadmium1063500100025
shield surrounding chamber. 1063500100026
ANALYSIS Threshold method to obtain the absolute ratio 1063500100027
CORRECTION Corrected for 1063500100028
- dead-time, 1063500100029
- background. 1063500100030
- neutrons scattered by Al plate. 1063500100031
Not corrected for 1063500100032
- isotopic impurities (negligible) 1063500100033
STATUS (APRVD) Approved by G.de Saussure, 1979/5/22. 1063500100034
HISTORY (19761001C) 1063500100035
(19761206R) Corrected data received from ORNL 1063500100036
(19790416A) Reference update. Converted to REACTION 1063500100037
Formalism. 1063500100038
(19840217A) BIB updated, COMMON added. 1063500100039
(20080812A) BIB update. Error heading updated. 1063500100040
(20190722A) On. MONITOR and ERR-ANALYS to 002. 1063500100041
Major rev. in 002. BIB updated. 1063500100042
ENDBIB 40 0 1063500100043
NOCOMMON 0 0 1063500100044
ENDSUBENT 43 0 1063500199999
SUBENT 10635002 20190722 14541063500200001
BIB 5 17 1063500200002
REACTION ((92-U-238(N,F),,SIG,,AV)/(92-U-235(N,F),,SIG,,AV)) 1063500200003
MONITOR ((92-U-238(N,F),,SIG,,AV)/(92-U-235(N,F),,SIG,,AV)) 1063500200004
ERR-ANALYS The total systematic uncertainty in Table XI of 1063500200005
Nucl.Sci.Eng.68(1978)43 is the quadrature sum of 1063500200006
ERR-1, ERR-2 and MONIT-ERR. 1063500200007
(ERR-S) Absolute statistical error. 1063500200008
(ERR-1) Effect of scattered neutrons 1063500200009
(ERR-2) Energy dependence of efficiency ratio 1063500200010
(MONIT-ERR) Normalization 1063500200011
STATUS (TABLE) Table X of Nucl.Sci.Eng.68(1978)43 1063500200012
By G.de Saussure (1979-05-15): 1063500200013
Data value for 1.01-1.03 MeV should have 0.0135, 1063500200014
not 0.1135 which is misquoted in Table X of 1063500200015
Nucl.Sci.Eng.68(1978)43. 1063500200016
HISTORY (19790416A) Data replaced 1063500200017
(20190722A) On. MONITOR and ERR-ANALYS from 001. 1063500200018
ERR-1 and ERR-2 added. EN-MIN:0.1 MEV-> 0.108 MeV 1063500200019
ENDBIB 17 0 1063500200020
COMMON 4 3 1063500200021
EN-NRM-MIN EN-NRM-MAX MONIT MONIT-ERR 1063500200022
MEV MEV NO-DIM PER-CENT 1063500200023
2.35 2.95 0.436 1. 1063500200024
ENDCOMMON 3 0 1063500200025
DATA 6 149 1063500200026
EN-MIN EN-MAX DATA ERR-S ERR-1 ERR-2 1063500200027
MEV MEV NO-DIM NO-DIM PER-CENT PER-CENT 1063500200028
0.108 0.203 0.751E-04 0.572E-5 3. 1. 1063500200029
0.203 0.306 0.709E-04 0.571E-5 3. 1. 1063500200030
0.306 0.391 0.145E-03 0.883E-5 3. 1. 1063500200031
0.391 0.446 0.221E-03 0.139E-4 3. 1. 1063500200032
0.446 0.515 0.312E-03 0.144E-4 3. 1. 1063500200033
0.515 0.556 0.460E-03 0.242E-4 3. 1. 1063500200034
0.556 0.601 0.629E-03 0.268E-4 3. 1. 1063500200035
0.601 0.652 0.906E-03 0.323E-4 3. 1. 1063500200036
0.652 0.710 0.141E-02 0.372E-4 3. 1. 1063500200037
0.710 0.742 0.190E-02 0.593E-4 3. 1. 1063500200038
0.742 0.776 0.260E-02 0.676E-4 3. 1. 1063500200039
0.776 0.813 0.399E-02 0.847E-4 3. 1. 1063500200040
0.813 0.852 0.499E-02 0.943E-4 3. 1. 1063500200041
0.852 0.863 0.686E-02 0.220E-3 3. 1. 1063500200042
0.863 0.873 0.762E-02 0.214E-3 3. 1. 1063500200043
0.873 0.884 0.104E-01 0.263E-3 3. 1. 1063500200044
0.884 0.895 0.131E-01 0.290E-3 3. 1. 1063500200045
0.895 0.906 0.128E-01 0.281E-3 3. 1. 1063500200046
0.906 0.917 0.124E-01 0.260E-3 3. 1. 1063500200047
0.917 0.928 0.141E-01 0.293E-3 3. 1. 1063500200048
0.928 0.940 0.146E-01 0.294E-3 3. 1. 1063500200049
0.940 0.952 0.153E-01 0.312E-3 3. 1. 1063500200050
0.952 0.964 0.129E-01 0.264E-3 3. 1. 1063500200051
0.964 0.976 0.137E-01 0.287E-3 3. 1. 1063500200052
0.976 0.989 0.140E-01 0.292E-3 3. 1. 1063500200053
0.989 1.00 0.148E-01 0.295E-3 3. 1. 1063500200054
1.00 1.01 0.143E-01 0.292E-3 3. 1. 1063500200055
1.01 1.03 0.135E-01 0.272E-3 3. 1. 1063500200056
1.03 1.04 0.144E-01 0.292E-3 3. 1. 1063500200057
1.04 1.06 0.164E-01 0.311E-3 3. 1. 1063500200058
1.06 1.07 0.185E-01 0.324E-3 3. 1. 1063500200059
1.07 1.08 0.199E-01 0.314E-3 3. 1. 1063500200060
1.08 1.10 0.226E-01 0.363E-3 3. 1. 1063500200061
1.10 1.11 0.253E-01 0.386E-3 3. 1. 1063500200062
1.11 1.13 0.284E-01 0.413E-3 3. 1. 1063500200063
1.13 1.15 0.292E-01 0.395E-3 3. 1. 1063500200064
1.15 1.16 0.353E-01 0.464E-3 3. 1. 1063500200065
1.16 1.18 0.362E-01 0.463E-3 3. 1. 1063500200066
1.18 1.19 0.363E-01 0.458E-3 3. 1. 1063500200067
1.19 1.21 0.359E-01 0.425E-3 3. 1. 1063500200068
1.21 1.23 0.340E-01 0.438E-3 3. 1. 1063500200069
1.23 1.25 0.348E-01 0.450E-3 3. 1. 1063500200070
1.25 1.26 0.400E-01 0.481E-3 3. 1. 1063500200071
1.26 1.28 0.480E-01 0.536E-3 3. 1. 1063500200072
1.28 1.30 0.552E-01 0.555E-3 3. 1. 1063500200073
1.30 1.32 0.662E-01 0.643E-3 3. 1. 1063500200074
1.32 1.34 0.772E-01 0.690E-3 3. 1. 1063500200075
1.34 1.36 0.922E-01 0.768E-3 3. 1. 1063500200076
1.36 1.38 0.116 0.852E-3 3. 1. 1063500200077
1.38 1.40 0.151 0.105E-2 3. 1. 1063500200078
1.40 1.43 0.177 0.112E-2 3. 1. 1063500200079
1.43 1.45 0.218 0.131E-2 3. 1. 1063500200080
1.45 1.47 0.253 0.139E-2 3. 1. 1063500200081
1.47 1.49 0.278 0.153E-2 3. 1. 1063500200082
1.49 1.52 0.289 0.154E-2 3. 1. 1063500200083
1.52 1.54 0.302 0.163E-2 1. 1. 1063500200084
1.54 1.57 0.310 0.159E-2 1. 1. 1063500200085
1.57 1.59 0.328 0.172E-2 1. 1. 1063500200086
1.59 1.62 0.338 0.175E-2 1. 1. 1063500200087
1.62 1.65 0.346 0.181E-2 1. 1. 1063500200088
1.65 1.67 0.345 0.186E-2 1. 1. 1063500200089
1.67 1.70 0.358 0.186E-2 1. 1. 1063500200090
1.70 1.73 0.369 0.193E-2 1. 1. 1063500200091
1.73 1.76 0.377 0.201E-2 1. 1. 1063500200092
1.76 1.79 0.383 0.191E-2 1. 1. 1063500200093
1.79 1.82 0.393 0.203E-2 1. 1. 1063500200094
1.82 1.86 0.404 0.202E-2 1. 1. 1063500200095
1.86 1.89 0.415 0.213E-2 1. 1. 1063500200096
1.89 1.92 0.421 0.222E-2 1. 1. 1063500200097
1.92 1.96 0.419 0.215E-2 1. 1. 1063500200098
1.96 1.99 0.423 0.218E-2 1. 1. 1063500200099
1.99 2.03 0.423 0.227E-2 1. 1. 1063500200100
2.03 2.07 0.424 0.232E-2 1. 1. 1063500200101
2.07 2.11 0.433 0.229E-2 1. 1. 1063500200102
2.11 2.15 0.438 0.239E-2 1. 1. 1063500200103
2.15 2.19 0.438 0.236E-2 1. 1. 1063500200104
2.19 2.23 0.439 0.243E-2 1. 1. 1063500200105
2.23 2.28 0.441 0.249E-2 1. 1. 1063500200106
2.28 2.32 0.438 0.244E-2 1. 1. 1063500200107
2.32 2.37 0.434 0.243E-2 1. 1. 1063500200108
2.37 2.41 0.436 0.255E-2 1. 1. 1063500200109
2.41 2.46 0.437 0.255E-2 1. 1. 1063500200110
2.46 2.52 0.439 0.257E-2 1. 1. 1063500200111
2.52 2.57 0.436 0.258E-2 1. 1. 1063500200112
2.57 2.62 0.439 0.270E-2 1. 1. 1063500200113
2.62 2.68 0.438 0.275E-2 1. 1. 1063500200114
2.68 2.74 0.437 0.271E-2 1. 1. 1063500200115
2.74 2.79 0.434 0.279E-2 1. 1. 1063500200116
2.79 2.86 0.435 0.285E-2 1. 1. 1063500200117
2.86 2.92 0.435 0.292E-2 1. 1. 1063500200118
2.92 2.99 0.428 0.293E-2 1. 1. 1063500200119
2.99 3.05 0.432 0.279E-2 1. 1. 1063500200120
3.05 3.12 0.440 0.300E-2 1. 1. 1063500200121
3.12 3.20 0.435 0.298E-2 1. 1. 1063500200122
3.20 3.27 0.443 0.309E-2 1. 1. 1063500200123
3.27 3.35 0.449 0.308E-2 1. 1. 1063500200124
3.35 3.43 0.453 0.312E-2 1. 1. 1063500200125
3.43 3.51 0.463 0.328E-2 1. 1. 1063500200126
3.51 3.60 0.470 0.335E-2 1. 1. 1063500200127
3.60 3.69 0.477 0.333E-2 1. 1. 1063500200128
3.69 3.78 0.475 0.334E-2 1. 1. 1063500200129
3.78 3.88 0.479 0.343E-2 1. 1. 1063500200130
3.88 3.98 0.489 0.353E-2 1. 1. 1063500200131
3.98 4.09 0.493 0.348E-2 1. 1. 1063500200132
4.09 4.20 0.489 0.344E-2 1. 1. 1063500200133
4.20 4.31 0.492 0.355E-2 1. 1. 1063500200134
4.31 4.43 0.499 0.366E-2 1. 1. 1063500200135
4.43 4.55 0.502 0.365E-2 1. 1. 1063500200136
4.55 4.68 0.501 0.347E-2 1. 1. 1063500200137
4.68 4.82 0.504 0.365E-2 1. 1. 1063500200138
4.82 4.96 0.512 0.370E-2 1. 1. 1063500200139
4.96 5.10 0.513 0.373E-2 1. 1. 1063500200140
5.10 5.25 0.518 0.358E-2 1. 1. 1063500200141
5.25 5.41 0.520 0.378E-2 1. 1. 1063500200142
5.41 5.58 0.529 0.381E-2 1. 1. 1063500200143
5.58 5.76 0.529 0.377E-2 1. 1. 1063500200144
5.76 5.94 0.555 0.366E-2 1. 1. 1063500200145
5.94 6.13 0.561 0.374E-2 1. 1. 1063500200146
6.13 6.33 0.588 0.373E-2 1. 1. 1063500200147
6.33 6.55 0.605 0.367E-2 1. 1. 1063500200148
6.55 6.77 0.622 0.352E-2 1. 2. 1063500200149
6.77 7.00 0.616 0.337E-2 1. 2. 1063500200150
7.00 7.25 0.602 0.337E-2 1. 2. 1063500200151
7.25 7.51 0.593 0.334E-2 1. 2. 1063500200152
7.51 7.79 0.570 0.323E-2 1. 2. 1063500200153
7.79 8.08 0.567 0.310E-2 1. 2. 1063500200154
8.08 8.38 0.570 0.341E-2 1. 1. 1063500200155
8.38 8.71 0.563 0.350E-2 1. 1. 1063500200156
8.71 9.05 0.570 0.367E-2 1. 1. 1063500200157
9.05 9.42 0.575 0.368E-2 1. 1. 1063500200158
9.42 9.81 0.573 0.408E-2 1. 1. 1063500200159
9.81 10.2 0.569 0.426E-2 1. 1. 1063500200160
10.2 10.7 0.572 0.447E-2 1. 1. 1063500200161
10.7 11.1 0.578 0.451E-2 1. 1. 1063500200162
11.1 11.6 0.585 0.504E-2 1. 1. 1063500200163
11.6 12.2 0.560 0.505E-2 1. 1. 1063500200164
12.2 12.7 0.541 0.502E-2 1. 1. 1063500200165
12.7 13.3 0.532 0.477E-2 1. 1. 1063500200166
13.3 14.0 0.534 0.508E-2 1. 1. 1063500200167
14.0 14.7 0.551 0.531E-2 1. 1. 1063500200168
14.7 15.5 0.574 0.565E-2 1. 1. 1063500200169
15.5 16.3 0.598 0.591E-2 1. 1. 1063500200170
16.3 17.2 0.614 0.638E-2 1. 1. 1063500200171
17.2 18.2 0.616 0.687E-2 1. 1. 1063500200172
18.2 19.2 0.652 0.768E-2 1. 1. 1063500200173
19.2 20.4 0.691 0.848E-2 1. 1. 1063500200174
20.4 21.7 0.723 0.862E-2 1. 1. 1063500200175
21.7 23.1 0.746 0.983E-2 1. 1. 1063500200176
23.1 24.6 0.735 0.102E-1 1. 1. 1063500200177
ENDDATA 151 0 1063500200178
ENDSUBENT 177 0 1063500299999
ENDENTRY 2 0 1063599999999