ENTRY 13877 20160615 14191387700000001
SUBENT 13877001 20160615 14191387700100001
BIB 7 25 1387700100002
TITLE Further Measurements of the Fission and Absorption 1387700100003
Cross Sections of 25 below 1000 eV 1387700100004
AUTHOR (E.E.Anderson,L.S.Lavatelli,E.D.McDaniel,R.B.Sutton) 1387700100005
REFERENCE (R,LA-158,1944) 1387700100006
INSTITUTE (1USALAS) 1387700100007
FACILITY (CYCLO,1USALAS) 1387700100008
METHOD (TOF) The cyclotron arc was modulated to produce 1387700100009
bursts of fast neutrons at the target. The neutrons 1387700100010
were then slowed down in a hydrogenous "source" and 1387700100011
pass down a paraffin and boron-carbide collimator to 1387700100012
the detector which has the form of an ionization 1387700100013
chamber. The pulses from the detector were passed to 1387700100014
an amplifier which was modulated so that the time 1387700100015
distribution of the pulses occurring in the 1387700100016
ionization chamber can be observed. Since the 1387700100017
measured time of flight for a neutron to pass from 1387700100018
the source to the detector was a function of the 1387700100019
energy, the time distribution of pulses in the 1387700100020
ionization chamber was a function of the sensitivity 1387700100021
of the detector for neutrons of various energies and 1387700100022
of the energy distribution of the neutron beam. By 1387700100023
comparing number of 235U counts in the chamber to 1387700100024
that of a BF3 detector the energy sensitivity was 1387700100025
determined for the ionization chamber. 1387700100026
HISTORY (20160615C) BP 1387700100027
ENDBIB 25 0 1387700100028
NOCOMMON 0 0 1387700100029
ENDSUBENT 28 0 1387700199999
SUBENT 13877002 20160615 14191387700200001
BIB 6 9 1387700200002
REACTION (92-U-235(N,F),,SIG,,RTE) 1387700200003
REL-REF (A,,E.E.Anderson+,R,LA-82,1944) 1387700200004
SAMPLE (92-U-235,ENR=0.65) Foils coated with beta-stage 235U 1387700200005
in 65% concentration and deposited as oxide in 1387700200006
thickness of 1.16 mg/cm2. 1387700200007
DETECTOR (IOCH,BF3) 1387700200008
MONITOR (5-B-10(N,A)3-LI-7,,SIG) for shape normalization 1387700200009
STATUS (CURVE) Fig. 16, page 36. Continuous curve, points were1387700200010
determined by a compiler. 1387700200011
ENDBIB 9 0 1387700200012
NOCOMMON 0 0 1387700200013
DATA 2 148 1387700200014
EN DATA 1387700200015
EV B*RT-EV 1387700200016
0.013 1.066E+02 1387700200017
0.015 1.058E+02 1387700200018
0.020 1.050E+02 1387700200019
0.025 1.042E+02 1387700200020
0.030 1.035E+02 1387700200021
0.035 1.027E+02 1387700200022
0.040 1.007E+02 1387700200023
0.044 9.995E+01 1387700200024
0.050 9.790E+01 1387700200025
0.059 9.649E+01 1387700200026
0.069 9.311E+01 1387700200027
0.080 9.104E+01 1387700200028
0.090 8.900E+01 1387700200029
0.100 8.696E+01 1387700200030
0.111 8.624E+01 1387700200031
0.140 8.348E+01 1387700200032
0.148 8.410E+01 1387700200033
0.175 8.730E+01 1387700200034
0.197 9.185E+01 1387700200035
0.224 9.770E+01 1387700200036
0.247 1.056E+02 1387700200037
0.260 1.134E+02 1387700200038
0.292 1.134E+02 1387700200039
0.328 1.093E+02 1387700200040
0.353 1.014E+02 1387700200041
0.384 9.081E+01 1387700200042
0.421 8.087E+01 1387700200043
0.472 7.290E+01 1387700200044
0.514 6.495E+01 1387700200045
0.576 5.961E+01 1387700200046
0.668 5.294E+01 1387700200047
0.808 5.612E+01 1387700200048
0.908 6.199E+01 1387700200049
0.969 7.183E+01 1387700200050
1.002 8.565E+01 1387700200051
1.036 9.551E+01 1387700200052
1.049 1.113E+02 1387700200053
1.084 1.179E+02 1387700200054
1.127 9.612E+01 1387700200055
1.129 1.080E+02 1387700200056
1.161 8.227E+01 1387700200057
1.184 7.172E+01 1387700200058
1.194 5.722E+01 1387700200059
1.217 4.271E+01 1387700200060
1.255 3.611E+01 1387700200061
1.453 2.548E+01 1387700200062
1.649 2.607E+01 1387700200063
1.932 2.532E+01 1387700200064
2.439 2.848E+01 1387700200065
2.801 3.697E+01 1387700200066
2.926 4.748E+01 1387700200067
3.060 6.393E+01 1387700200068
3.164 7.511E+01 1387700200069
3.366 6.453E+01 1387700200070
3.501 4.606E+01 1387700200071
3.506 5.528E+01 1387700200072
3.725 3.680E+01 1387700200073
3.880 2.624E+01 1387700200074
4.492 1.693E+01 1387700200075
4.996 2.148E+01 1387700200076
5.335 3.660E+01 1387700200077
5.639 5.501E+01 1387700200078
5.837 7.344E+01 1387700200079
5.916 9.319E+01 1387700200080
6.386 1.109E+02 1387700200081
6.797 1.037E+02 1387700200082
6.838 7.335E+01 1387700200083
6.925 8.717E+01 1387700200084
6.976 6.477E+01 1387700200085
7.428 6.144E+01 1387700200086
7.599 7.197E+01 1387700200087
7.721 1.089E+02 1387700200088
7.763 1.457E+02 1387700200089
7.888 1.820E+02 1387700200090
7.965 2.485E+02 1387700200091
8.001 2.788E+02 1387700200092
8.101 2.195E+02 1387700200093
8.206 3.071E+02 1387700200094
8.237 3.328E+02 1387700200095
8.298 3.829E+02 1387700200096
8.319 4.006E+02 1387700200097
8.363 4.362E+02 1387700200098
8.382 4.520E+02 1387700200099
8.659 4.573E+02 1387700200100
8.839 4.533E+02 1387700200101
8.957 3.999E+02 1387700200102
9.004 4.355E+02 1387700200103
9.196 3.637E+02 1387700200104
9.293 2.912E+02 1387700200105
9.342 3.268E+02 1387700200106
9.540 2.543E+02 1387700200107
9.641 1.825E+02 1387700200108
9.693 2.187E+02 1387700200109
9.898 1.456E+02 1387700200110
9.929 9.487E+01 1387700200111
10.160 1.080E+02 1387700200112
10.918 9.416E+01 1387700200113
11.534 1.086E+02 1387700200114
11.844 1.455E+02 1387700200115
12.076 2.054E+02 1387700200116
12.597 2.054E+02 1387700200117
13.250 1.896E+02 1387700200118
13.785 1.718E+02 1387700200119
14.475 1.447E+02 1387700200120
14.912 1.315E+02 1387700200121
15.889 1.322E+02 1387700200122
16.265 1.473E+02 1387700200123
17.232 1.809E+02 1387700200124
17.791 2.546E+02 1387700200125
17.885 2.184E+02 1387700200126
18.459 2.895E+02 1387700200127
18.886 3.014E+02 1387700200128
19.704 3.027E+02 1387700200129
21.175 2.894E+02 1387700200130
21.583 2.756E+02 1387700200131
23.098 2.341E+02 1387700200132
23.165 2.538E+02 1387700200133
24.815 2.189E+02 1387700200134
27.948 2.372E+02 1387700200135
30.815 2.550E+02 1387700200136
33.711 2.911E+02 1387700200137
35.986 3.043E+02 1387700200138
38.471 3.273E+02 1387700200139
41.895 3.325E+02 1387700200140
46.028 3.259E+02 1387700200141
50.008 3.153E+02 1387700200142
60.902 2.908E+02 1387700200143
69.642 2.690E+02 1387700200144
79.683 2.511E+02 1387700200145
90.292 2.392E+02 1387700200146
101.356 2.352E+02 1387700200147
115.084 2.371E+02 1387700200148
130.837 2.476E+02 1387700200149
145.567 2.547E+02 1387700200150
167.443 2.731E+02 1387700200151
196.682 2.901E+02 1387700200152
225.999 3.013E+02 1387700200153
254.112 3.084E+02 1387700200154
307.555 3.136E+02 1387700200155
356.633 3.148E+02 1387700200156
413.423 3.141E+02 1387700200157
459.342 3.121E+02 1387700200158
515.680 3.087E+02 1387700200159
597.622 3.060E+02 1387700200160
722.260 3.013E+02 1387700200161
827.994 2.966E+02 1387700200162
919.692 2.926E+02 1387700200163
1021.545 2.885E+02 1387700200164
ENDDATA 150 0 1387700200165
ENDSUBENT 164 0 1387700299999
SUBENT 13877003 20160615 14191387700300001
BIB 4 14 1387700300002
REACTION (92-U-235(N,ABS),,SIG,,RTE) 1387700300003
DETECTOR (BF3) BF3 detector: 20 cm long and 6 cm in diameter. 1387700300004
SAMPLE (92-U-235,ENR=0.64) A total of 5 different absorbers 1387700300005
were used in various combinations, Two of these were 1387700300006
composed of uranium tetrafluoride while the other 1387700300007
three were of the metal. These absorbers were 1387700300008
composed of enriched isotopic material of 1387700300009
concentration approximately 64 percent 25 by weight. 1387700300010
In addition to these absorbers of enriched mataria1 1387700300011
five samples of the normal mixture of uranium were 1387700300012
used which corresponded approximately in weight to 1387700300013
the enriched samples. 1387700300014
STATUS (CURVE) Fig. 15, page 35. Continues curve, points were1387700300015
determined by a compiler. 1387700300016
ENDBIB 14 0 1387700300017
NOCOMMON 0 0 1387700300018
DATA 2 120 1387700300019
EN DATA 1387700300020
EV B*RT-EV 1387700300021
0.012 1.082E+02 1387700300022
0.015 1.068E+02 1387700300023
0.020 1.060E+02 1387700300024
0.025 1.059E+02 1387700300025
0.029 1.052E+02 1387700300026
0.039 1.031E+02 1387700300027
0.049 1.004E+02 1387700300028
0.058 9.838E+01 1387700300029
0.068 9.436E+01 1387700300030
0.078 9.234E+01 1387700300031
0.088 9.097E+01 1387700300032
0.098 8.895E+01 1387700300033
0.121 8.624E+01 1387700300034
0.143 8.486E+01 1387700300035
0.177 8.940E+01 1387700300036
0.199 9.332E+01 1387700300037
0.224 9.988E+01 1387700300038
0.236 1.084E+02 1387700300039
0.257 1.176E+02 1387700300040
0.277 1.229E+02 1387700300041
0.311 1.182E+02 1387700300042
0.349 1.063E+02 1387700300043
0.383 9.176E+01 1387700300044
0.430 7.654E+01 1387700300045
0.493 6.461E+01 1387700300046
0.577 5.531E+01 1387700300047
0.698 5.194E+01 1387700300048
0.826 5.386E+01 1387700300049
0.939 6.900E+01 1387700300050
1.013 8.811E+01 1387700300051
1.026 1.073E+02 1387700300052
1.095 1.257E+02 1387700300053
1.126 8.412E+01 1387700300054
1.140 1.066E+02 1387700300055
1.184 5.704E+01 1387700300056
1.260 3.985E+01 1387700300057
1.399 2.859E+01 1387700300058
1.622 2.788E+01 1387700300059
1.824 3.774E+01 1387700300060
1.966 4.827E+01 1387700300061
2.115 4.033E+01 1387700300062
2.229 3.371E+01 1387700300063
2.450 2.839E+01 1387700300064
2.754 3.495E+01 1387700300065
2.877 4.946E+01 1387700300066
2.974 6.595E+01 1387700300067
3.205 7.582E+01 1387700300068
3.411 6.062E+01 1387700300069
3.553 4.476E+01 1387700300070
3.701 3.088E+01 1387700300071
3.943 2.756E+01 1387700300072
4.294 3.545E+01 1387700300073
4.346 5.195E+01 1387700300074
4.444 6.514E+01 1387700300075
4.497 7.768E+01 1387700300076
4.550 9.022E+01 1387700300077
4.802 1.021E+02 1387700300078
5.058 9.084E+01 1387700300079
5.677 8.156E+01 1387700300080
5.942 1.178E+02 1387700300081
5.993 9.672E+01 1387700300082
6.145 1.390E+02 1387700300083
6.289 1.614E+02 1387700300084
6.438 1.845E+02 1387700300085
6.521 2.089E+02 1387700300086
6.825 1.297E+02 1387700300087
6.985 1.528E+02 1387700300088
7.081 1.851E+02 1387700300089
7.177 1.013E+02 1387700300090
7.263 1.165E+02 1387700300091
7.479 9.004E+01 1387700300092
7.817 1.111E+02 1387700300093
7.915 1.309E+02 1387700300094
8.012 1.488E+02 1387700300095
8.209 1.831E+02 1387700300096
8.283 1.652E+02 1387700300097
8.488 2.022E+02 1387700300098
8.503 2.213E+02 1387700300099
9.265 2.339E+02 1387700300100
9.542 2.101E+02 1387700300101
9.600 1.606E+02 1387700300102
9.654 2.213E+02 1387700300103
9.714 1.738E+02 1387700300104
9.728 1.896E+02 1387700300105
9.789 1.427E+02 1387700300106
9.983 1.256E+02 1387700300107
10.988 1.341E+02 1387700300108
11.009 1.546E+02 1387700300109
11.748 1.711E+02 1387700300110
11.763 1.856E+02 1387700300111
13.502 1.895E+02 1387700300112
15.483 1.835E+02 1387700300113
17.595 1.940E+02 1387700300114
18.388 2.138E+02 1387700300115
18.812 2.316E+02 1387700300116
19.862 2.474E+02 1387700300117
22.323 2.527E+02 1387700300118
25.034 2.342E+02 1387700300119
26.371 2.249E+02 1387700300120
29.606 2.183E+02 1387700300121
30.290 2.367E+02 1387700300122
32.008 2.618E+02 1387700300123
33.124 2.895E+02 1387700300124
33.179 3.073E+02 1387700300125
34.317 3.291E+02 1387700300126
34.732 3.449E+02 1387700300127
35.899 3.594E+02 1387700300128
39.906 3.601E+02 1387700300129
44.316 3.501E+02 1387700300130
47.657 3.356E+02 1387700300131
51.795 3.210E+02 1387700300132
58.099 3.051E+02 1387700300133
66.608 2.965E+02 1387700300134
84.911 2.918E+02 1387700300135
107.242 3.010E+02 1387700300136
123.232 3.174E+02 1387700300137
144.676 3.372E+02 1387700300138
164.489 3.530E+02 1387700300139
193.008 3.668E+02 1387700300140
208.025 3.766E+02 1387700300141
ENDDATA 122 0 1387700300142
ENDSUBENT 141 0 1387700399999
SUBENT 13877004 20160615 14191387700400001
BIB 3 4 1387700400002
REACTION (92-U-235(N,ABS),,SIG) 1387700400003
ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. 1387700400004
STATUS (DEP,13877003) 1387700400005
(TABLE) page 17. 1387700400006
ENDBIB 4 0 1387700400007
NOCOMMON 0 0 1387700400008
DATA 3 1 1387700400009
EN DATA DATA-ERR 1387700400010
EV B B 1387700400011
0.025 653.0 16.0 1387700400012
ENDDATA 3 0 1387700400013
ENDSUBENT 12 0 1387700499999
SUBENT 13877005 20160615 14191387700500001
BIB 2 2 1387700500002
REACTION (92-U-238(N,0),,EN) 1387700500003
STATUS (TABLE) page 2. 1387700500004
ENDBIB 2 0 1387700500005
NOCOMMON 0 0 1387700500006
DATA 1 3 1387700500007
DATA 1387700500008
EV 1387700500009
6.6 1387700500010
21.0 1387700500011
38.0 1387700500012
ENDDATA 5 0 1387700500013
ENDSUBENT 12 0 1387700599999
ENDENTRY 5 0 1387799999999