ENTRY 41158 20220928 42084115800000001
SUBENT 41158001 20220928 42084115800100001
BIB 11 44 4115800100002
TITLE Low-energy neutron spectrometer and its application 4115800100003
for Cf-252 neutron spectrum measurements. 4115800100004
AUTHOR (A.Lajtai,P.P.Dyachenko,V.N.Kononov,E.A.Seregina) 4115800100005
REFERENCE (J,NIM/A,293,555,1990) Data table is given 4115800100006
#doi:10.1016/0168-9002(90)90323-X 4115800100007
(C,88MITO,,737,1988) First author A.Lajtai. 4115800100008
Preliminary publication. 4115800100009
(R,INDC(NDS)-220,175,1989) 4115800100010
The same data Table as in 88MITO. 4115800100011
Preliminary publication. 4115800100012
INSTITUTE (4ZZZDUB) Lajtai 4115800100013
(4RUSFEI) Dyachenko (=D'yachenko), Kononov, Seregina 4115800100014
DETECTOR (GLASD) Li-6 thin glass detector for neutrons 4115800100015
Efficiency of 0.95 cm thick NE 912 glass neutron 4115800100016
detector was determined independently by using 0.0835cm4115800100017
thin glass detector as a reference, whose efficiency 4115800100018
was determined by Monte Carlo calculations. 4115800100019
(FISCH) For fission fragments . 4115800100020
Filled with 90% Ar + 10% CO2 at 3 Torr. 4115800100021
SAMPLE Cf-252 source of 10**4 fis/sec, 6mm diameter. 4115800100022
METHOD (TOF) 30 cm flight path. 4115800100023
Four series of measurements: with NE 912 and NE 913 4115800100024
glass scintillators, both with and without shadow cone.4115800100025
Total number of fission events 1.5*10**10 for each of 4115800100026
four runs. 4115800100027
MONITOR (3-LI-6(N,T)2-HE-4,,SIG) To determine thin detector 4115800100028
efficiency. See MISC-COL in Subent 002. 4115800100029
PART-DET (FF,N) 4115800100030
CORRECTION For deviation of actual efficiencies from the 4115800100031
efficiencies for pure Li-6(N,A) reaction. 4115800100032
For time dependence of response function. 4115800100033
For gamma-ray sensitivity of thick glass detector. 4115800100034
For systematic accident coincidences at high counting 4115800100035
rates. 4115800100036
For backgrounds. 4115800100037
For time resolution of TOF spectrometer. 4115800100038
HISTORY (19940928C) + + compiled at the centre - CJD + + 4115800100039
(20111219A) M.M. Upper -> lower case correction. 4115800100040
Dates were corrected for 4-digits year. 4115800100041
BIB information was added. 4115800100042
(20120512A) DOI code was corrected in Subent 001 4115800100043
according to WP2012-26 . 4115800100044
(20220928A) Refs. C,88MITO,,737,1988 and 4115800100045
R,INDC(NDS)-220,175,1989 were added. 4115800100046
ENDBIB 44 0 4115800100047
NOCOMMON 0 0 4115800100048
ENDSUBENT 47 0 4115800199999
SUBENT 41158002 20220928 42084115800200001
BIB 6 34 4115800200002
REACTION (98-CF-252(0,F),PR,NU/DE,,REL) 4115800200003
Spectrum in arbitrary units. Units are not given in 4115800200004
Tables of articles. 4115800200005
ANALYSIS Neutron spectrum was defined as: 4115800200006
N(E)=P(E)/Nf*(solid angle)*(n detection efficiency), 4115800200007
where Nf - number of detected fission events, 4115800200008
P(E) - corrected neutron TOF spectrum transformed 4115800200009
( t -> E ) in energy spectrum. 4115800200010
MISC-COL (MISC1) Detection efficiencies for thin NE 908 4115800200011
(Monte Carlo calculation). 4115800200012
(MISC2) Detection efficiencies for thick NE 912 4115800200013
detector suspended in thin-wall Al chamber. 4115800200014
(MISC3) Detection efficiencies for thick NE 912 4115800200015
detector mounted on 56AVP multiplier. 4115800200016
ERR-ANALYS (MISC2-ERR) Errors 4115800200017
(MISC3-ERR) include: 4115800200018
the statistical errors of the measurements, 4115800200019
the accuracy of the Monte Carlo calculation of thin 4115800200020
glass efficiency (less than 2%), 4115800200021
the accuracy of the 6Li(n,a)T cross section. 4115800200022
(ERR-T) Total error includes: 4115800200023
(ERR-1) Error of the correction factor 4115800200024
(ERR-2) Error of efficiency of ionization chamber 4115800200025
(ERR-3) Error of determination of flight length and 4115800200026
neutron solid angle 4115800200027
STATUS (TABLE) Table 2 of J,NIM/A,293,555,1990 . 4115800200028
Tables of C,88MITO,,737,1988 and 4115800200029
R,INDC(NDS)-220,175,1989 - preliminary publications. 4115800200030
.This Subent superseds Subent 40875.002 4115800200031
HISTORY (20111219A) PR,DE,N,REL -> PR,NU/DE,,REL . 4115800200032
MISC data (ratio of measured spectrum to Maxwellian 4115800200033
one) were moved in Subent 003. 4115800200034
Data of efficiencies were inserted as MISC1, MISC2, 4115800200035
MISC3 (Table 1 of J,NIM/A,293,555,1990). 4115800200036
ENDBIB 34 0 4115800200037
COMMON 3 3 4115800200038
ERR-1 ERR-2 ERR-3 4115800200039
PER-CENT PER-CENT PER-CENT 4115800200040
2. 3. 2. 4115800200041
ENDCOMMON 3 0 4115800200042
DATA 8 70 4115800200043
E DATA ERR-T MISC1 MISC2 MISC2-ERR 4115800200044
MISC3 MISC3-ERR 4115800200045
KEV ARB-UNITS ARB-UNITS PER-CENT PER-CENT PER-CENT 4115800200046
PER-CENT PER-CENT 4115800200047
25. 3.530 0.478 0.145 1.748 0.043 4115800200048
1.905 0.046 4115800200049
35. 2.870 0.463 0.125 1.609 0.041 4115800200050
1.744 0.045 4115800200051
45. 4.406 0.477 0.113 1.505 0.036 4115800200052
1.663 0.042 4115800200053
55. 4.200 0.455 0.106 1.444 0.035 4115800200054
1.550 0.041 4115800200055
65. 4.435 0.443 0.101 1.389 0.032 4115800200056
1.497 0.040 4115800200057
75. 4.962 0.454 0.098 1.318 0.033 4115800200058
1.414 0.039 4115800200059
85. 4.834 0.427 0.097 1.305 0.032 4115800200060
1.395 0.038 4115800200061
95. 5.640 0.414 0.096 1.331 0.025 4115800200062
1.397 0.039 4115800200063
105. 5.688 0.391 0.098 1.341 0.031 4115800200064
1.415 0.040 4115800200065
115. 6.402 0.471 0.101 1.388 0.038 4115800200066
1.477 0.048 4115800200067
125. 7.032 0.470 0.106 1.459 0.045 4115800200068
1.556 0.052 4115800200069
135. 6.786 0.453 0.113 1.558 0.068 4115800200070
1.658 0.078 4115800200071
145. 6.495 0.424 0.123 1.672 0.081 4115800200072
1.806 0.086 4115800200073
155. 7.308 0.457 0.136 1.860 0.093 4115800200074
2.025 0.101 4115800200075
165. 7.140 0.438 0.155 2.103 0.098 4115800200076
2.292 0.114 4115800200077
175. 7.546 0.453 0.182 2.473 0.105 4115800200078
2.475 0.147 4115800200079
185. 7.545 0.445 0.217 2.919 0.138 4115800200080
3.222 0.153 4115800200081
195. 7.914 0.464 0.264 3.523 0.148 4115800200082
3.832 0.211 4115800200083
205. 7.674 0.448 0.319 4.264 0.213 4115800200084
4.529 0.254 4115800200085
215. 8.587 0.494 0.384 5.256 0.255 4115800200086
5.690 0.350 4115800200087
225. 7.354 0.423 0.448 5.887 0.278 4115800200088
6.381 0.347 4115800200089
235. 7.695 0.443 0.489 6.580 0.283 4115800200090
6.628 0.346 4115800200091
245. 7.749 0.445 0.495 6.641 0.345 4115800200092
6.648 0.360 4115800200093
255. 7.391 0.431 0.460 6.211 0.310 4115800200094
6.330 0.322 4115800200095
265. 8.167 0.466 0.403 5.497 0.264 4115800200096
5.792 0.276 4115800200097
275. 8.918 0.521 0.343 4.900 0.253 4115800200098
4.924 0.263 4115800200099
285. 8.907 0.534 0.289 4.257 0.226 4115800200100
4.333 0.250 4115800200101
295. 8.798 0.511 0.246 3.635 0.174 4115800200102
3.712 0.203 4115800200103
305. 8.538 0.499 0.211 3.208 0.149 4115800200104
3.246 0.177 4115800200105
315. 8.551 0.503 0.184 2.904 0.145 4115800200106
3.116 0.151 4115800200107
325. 8.984 0.528 0.163 2.585 0.140 4115800200108
2.721 0.150 4115800200109
335. 8.771 0.518 0.146 2.343 0.110 4115800200110
2.470 0.142 4115800200111
345. 8.454 0.505 0.131 2.147 0.109 4115800200112
2.300 0.121 4115800200113
355. 8.831 0.529 0.119 1.981 0.105 4115800200114
2.120 0.118 4115800200115
365. 9.357 0.560 0.110 1.848 0.105 4115800200116
2.061 0.115 4115800200117
375. 9.404 0.563 0.101 1.745 0.091 4115800200118
1.930 0.111 4115800200119
385. 9.075 0.549 0.095 1.679 0.083 4115800200120
1.947 0.101 4115800200121
395. 9.192 0.554 0.090 1.565 0.081 4115800200122
1.886 0.098 4115800200123
410. 9.577 0.560 0.084 1.495 0.079 4115800200124
1.782 0.096 4115800200125
430. 9.888 0.587 0.079 1.375 0.075 4115800200126
1.698 0.081 4115800200127
450. 9.393 0.550 0.075 1.313 0.071 4115800200128
1.563 0.080 4115800200129
470. 9.712 0.624 0.066 1.114 0.060 4115800200130
1.337 0.072 4115800200131
490. 9.362 0.564 0.059 1.001 0.055 4115800200132
1.154 0.066 4115800200133
510. 9.697 0.566 0.055 0.902 0.052 4115800200134
1.056 0.065 4115800200135
530. 9.889 0.598 0.053 0.844 0.049 4115800200136
0.943 0.054 4115800200137
550. 9.770 0.578 0.051 0.762 0.046 4115800200138
0.859 0.053 4115800200139
570. 9.711 0.580 0.049 0.736 0.044 4115800200140
0.827 0.053 4115800200141
590. 9.667 0.591 0.047 0.726 0.043 4115800200142
0.776 0.052 4115800200143
610. 9.982 0.614 0.046 0.684 0.041 4115800200144
0.728 0.050 4115800200145
630. 9.938 0.613 0.044 0.657 0.036 4115800200146
0.686 0.048 4115800200147
650. 10.020 0.626 0.043 0.633 0.035 4115800200148
0.654 0.043 4115800200149
670. 9.983 0.625 0.042 0.623 0.035 4115800200150
0.643 0.042 4115800200151
690. 9.924 0.653 0.041 0.605 0.033 4115800200152
0.613 0.042 4115800200153
710. 10.296 0.642 0.040 0.562 0.034 4115800200154
0.584 0.042 4115800200155
735. 10.467 0.646 0.038 0.540 0.033 4115800200156
0.547 0.042 4115800200157
765. 10.509 0.629 0.037 0.526 0.032 4115800200158
0.533 0.042 4115800200159
795. 10.032 0.625 0.038 0.543 0.032 4115800200160
0.550 0.042 4115800200161
825. 9.881 0.617 0.037 0.544 0.032 4115800200162
0.557 0.041 4115800200163
855. 9.970 0.626 0.036 0.538 0.031 4115800200164
0.550 0.041 4115800200165
885. 10.013 0.623 0.036 0.531 0.030 4115800200166
0.543 0.040 4115800200167
915. 9.768 0.616 0.035 0.531 0.030 4115800200168
0.547 0.040 4115800200169
945. 9.755 0.621 0.035 0.530 0.030 4115800200170
0.537 0.041 4115800200171
975. 9.597 0.592 0.035 0.533 0.029 4115800200172
0.542 0.041 4115800200173
1005. 9.516 0.590 0.035 0.535 0.029 4115800200174
0.549 0.041 4115800200175
1020. 9.401 0.587 0.035 0.529 0.030 4115800200176
0.539 0.040 4115800200177
1060. 9.864 0.608 0.034 0.528 0.028 4115800200178
0.538 0.038 4115800200179
1100. 9.822 0.621 0.033 0.510 0.027 4115800200180
0.514 0.039 4115800200181
1140. 9.985 0.618 0.033 0.515 0.028 4115800200182
0.516 0.039 4115800200183
1180. 9.486 0.590 0.033 0.512 0.027 4115800200184
0.515 0.039 4115800200185
1220. 9.820 0.603 0.033 0.511 0.027 4115800200186
0.518 0.038 4115800200187
ENDDATA 144 0 4115800200188
ENDSUBENT 187 0 4115800299999
SUBENT 41158003 20220928 42084115800300001
BIB 3 7 4115800300002
REACTION (98-CF-252(0,F),PR,NU/DE,,MXD) 4115800300003
STATUS (TABLE) Table 2 of J,NIM/A,293,555,1990 . 4115800300004
(DEP,41158002) In Subent 002 - measured spectrum. 4115800300005
Tables of C,88MITO,,737,1988 and 4115800300006
R,INDC(NDS)-220,175,1989 - preliminary publications. 4115800300007
.This Subent superseded Subent 40875.003 4115800300008
HISTORY (20111219C) Data were moved from Subent 002. 4115800300009
ENDBIB 7 0 4115800300010
COMMON 1 3 4115800300011
KT-NRM 4115800300012
MEV 4115800300013
1.42 4115800300014
ENDCOMMON 3 0 4115800300015
DATA 2 70 4115800300016
E DATA 4115800300017
KEV NO-DIM 4115800300018
25. 1.140 4115800300019
35. 0.790 4115800300020
45. 1.075 4115800300021
55. 0.934 4115800300022
65. 0.913 4115800300023
75. 0.958 4115800300024
85. 0.883 4115800300025
95. 0.981 4115800300026
105. 0.948 4115800300027
115. 1.028 4115800300028
125. 1.089 4115800300029
135. 1.018 4115800300030
145. 0.947 4115800300031
155. 1.038 4115800300032
165. 0.990 4115800300033
175. 1.023 4115800300034
185. 1.002 4115800300035
195. 1.031 4115800300036
205. 0.979 4115800300037
215. 1.080 4115800300038
225. 0.911 4115800300039
235. 0.939 4115800300040
245. 0.933 4115800300041
255. 0.879 4115800300042
265. 0.959 4115800300043
275. 1.035 4115800300044
285. 1.022 4115800300045
295. 1.000 4115800300046
305. 0.961 4115800300047
315. 0.954 4115800300048
325. 0.994 4115800300049
335. 0.962 4115800300050
345. 0.920 4115800300051
355. 0.954 4115800300052
365. 1.004 4115800300053
375. 1.003 4115800300054
385. 0.962 4115800300055
395. 0.970 4115800300056
410. 1.001 4115800300057
430. 1.024 4115800300058
450. 0.964 4115800300059
470. 0.989 4115800300060
490. 0.947 4115800300061
510. 0.975 4115800300062
530. 0.989 4115800300063
550. 0.976 4115800300064
570. 0.963 4115800300065
590. 0.955 4115800300066
610. 0.985 4115800300067
630. 0.978 4115800300068
650. 0.985 4115800300069
670. 0.980 4115800300070
690. 0.974 4115800300071
710. 1.011 4115800300072
735. 1.028 4115800300073
765. 1.033 4115800300074
795. 0.988 4115800300075
825. 0.976 4115800300076
855. 0.988 4115800300077
885. 0.996 4115800300078
915. 0.974 4115800300079
945. 0.978 4115800300080
975. 0.969 4115800300081
1005. 0.966 4115800300082
1020. 0.958 4115800300083
1060. 1.014 4115800300084
1100. 1.019 4115800300085
1140. 1.046 4115800300086
1180. 1.005 4115800300087
1220. 1.053 4115800300088
ENDDATA 72 0 4115800300089
ENDSUBENT 88 0 4115800399999
ENDENTRY 3 0 4115899999999