ENTRY 10562 20210512 14811056200000001 SUBENT 10562001 20210512 14811056200100001 BIB 11 53 1056200100002 TITLE Measurement of the fission cross sections of 1056200100003 uranium-233 and plutonium-239 relative to uranium-235 1056200100004 from 1 keV to 30 keV 1056200100005 AUTHOR (G.W.Carlson, J.W.Behrens) 1056200100006 INSTITUTE (1USALRL) 1056200100007 REFERENCE (J,NSE,66,205,1978) 1056200100008 (R,UCID-16981,1975) Preliminary data 1056200100009 FACILITY (LINAC,1USALRL) LLL 100 MeV electron linac 1056200100010 SAMPLE 233U sample: 1056200100011 233U (>99.99%), 236U (0.001%) 1056200100012 235U sample: 1056200100013 234U (0.03%), 235U (99.91%), 236U (0.02%), 238U (0.04%1056200100014 238U sample: 1056200100015 235U (0.0006%), 238U (>99.99%) 1056200100016 239Pu sample: 1056200100017 239Pu (99.98%), 240Pu (0.02%) 1056200100018 238U+233U sample 1056200100019 233U (12.69%), 238U (87.31%) 1056200100020 238U+239Pu sample: 1056200100021 238U (85.57%), 239Pu (14.43%) 1056200100022 METHOD (TOF) Flight path of 34.3 m (1440 Hz and 10 ns pulse 1056200100023 width except for 239Pu-to-235U ratio for which 720 Hz 1056200100024 and 20 ns pulse width). 1056200100025 A 17 m was also used for normalization to the thermal 1056200100026 ratio. 1056200100027 The effect of neutron target and detector thickness on 1056200100028 flight path resolution was an uncertainty of +/-4 cm. 1056200100029 DETECTOR (FISCH) Ionization fission chambers 1056200100030 ERR-ANALYS The following effects are taken into account: 1056200100031 - electronic deadtime 1056200100032 - accidental coincidences 1056200100033 - relative timing errors between detectors 1056200100034 - energy-dependent detector efficiency 1056200100035 - neutron scattering in foils and adjacent parts 1056200100036 - out-of-time neutron background 1056200100037 - time-independent background from alpha pileup and 1056200100038 amplifier noise. 1056200100039 (ERR-S) Statistical error 1056200100040 (ERR-T) Total error 1056200100041 (MONIT-ERR) Uncertainty in the weighted average of 1056200100042 the ratios at 1.75 to 4.0 MeV from two normalization 1056200100043 methods (normalization by threshold method and at the 1056200100044 thermal energy). 1056200100045 STATUS (APRVD) Approved by J.W.Behrens 1978/3/6. 1056200100046 HISTORY (19760112C) 1056200100047 (19771209A) BIB update. Converted to REACTION 1056200100048 formalism. 1056200100049 (19780913U) Reference update 1056200100050 (19830914A) MONITOR, COMMON updated in all subentries. 1056200100051 (20040602A) Converted to new date formats, lower case. 1056200100052 (20170724A) On. ERR-ANALYS update. Major rev.in 002+0031056200100053 (20180507U) On. FACILITY and METHOD revised. 1056200100054 (20210512A) On. Important alteration in 002. 1056200100055 ENDBIB 53 0 1056200100056 NOCOMMON 0 0 1056200100057 ENDSUBENT 56 0 1056200199999 SUBENT 10562002 20210512 14811056200200001 BIB 5 15 1056200200002 REACTION ((94-PU-239(N,F),,SIG)/(92-U-235(N,F),,SIG)) 1056200200003 MONITOR ((94-PU-239(N,F),,SIG,,AV)/(92-U-235(N,F),,SIG,,AV)) 1056200200004 Weighted average of the (1) 238U/235U and 238U/239Pu 1056200200005 ratio, and (2) thermal ratio. 1056200200006 FLAG (1.) The upper boundary energy (EN-MAX) of the highest 1056200200007 bin is not given in the article. The compiler 1056200200008 obtained it from the lower boundary energy and centre 1056200200009 energy in the article. There might be minor 1056200200010 difference of +/-0.001 MeV. 1056200200011 STATUS (TABLE) Table IX of Nucl.Sci.Eng.666(1978)205 1056200200012 HISTORY (19771209A) Preliminary data replaced. 1056200200013 (20170724A) On. DATA-ERR -> ERR-T. EN -> EN-MIN/MAX, 1056200200014 MONIT-ERR added. 1056200200015 (20180507U) On. Free text under MONITOR revised. 1056200200016 (20210512A) On. EN-MAX: 28.654 MeV -> 30.654 MeV 1056200200017 ENDBIB 15 0 1056200200018 COMMON 4 3 1056200200019 EN-NRM-MIN EN-NRM-MAX MONIT MONIT-ERR 1056200200020 MEV MEV NO-DIM PER-CENT 1056200200021 1.75 4.0 1.513 1.1 1056200200022 ENDCOMMON 3 0 1056200200023 DATA 6 107 1056200200024 EN-MIN EN-MAX DATA ERR-S ERR-T FLAG 1056200200025 MEV MEV NO-DIM PER-CENT PER-CENT NO-DIM 1056200200026 0.0007 0.0010 0.697 1.8 2.1 1056200200027 0.0010 0.0015 0.713 1.4 1.8 1056200200028 0.0015 0.002 0.521 1.9 2.2 1056200200029 0.002 0.003 0.650 1.4 1.8 1056200200030 0.003 0.004 0.633 1.5 1.9 1056200200031 0.004 0.006 0.606 1.2 1.6 1056200200032 0.006 0.008 0.665 1.4 1.8 1056200200033 0.008 0.010 0.647 1.5 1.9 1056200200034 0.010 0.015 0.690 1.1 1.6 1056200200035 0.015 0.020 0.730 1.2 1.6 1056200200036 0.020 0.025 0.754 1.2 1.6 1056200200037 0.025 0.030 0.744 1.2 1.6 1056200200038 0.030 0.040 0.818 1.0 1.5 1056200200039 0.040 0.050 0.834 1.0 1.5 1056200200040 0.050 0.060 0.841 1.0 1.5 1056200200041 0.060 0.070 0.903 1.0 1.5 1056200200042 0.070 0.080 0.916 1.1 1.6 1056200200043 0.080 0.0900 0.947 1.1 1.6 1056200200044 0.0900 0.1000 0.972 1.1 1.6 1056200200045 0.1000 0.1063 0.976 1.1 1.6 1056200200046 0.1063 0.1138 1.024 1.1 1.6 1056200200047 0.1138 0.1222 0.988 1.0 1.5 1056200200048 0.1222 0.1315 1.000 1.0 1.5 1056200200049 0.1315 0.1419 1.032 0.9 1.4 1056200200050 0.1419 0.1536 1.073 0.9 1.4 1056200200051 0.1536 0.1669 1.059 0.8 1.4 1056200200052 0.1669 0.1819 1.060 0.8 1.4 1056200200053 0.1819 0.1990 1.070 0.7 1.3 1056200200054 0.1990 0.2187 1.126 0.7 1.3 1056200200055 0.2187 0.2414 1.168 0.6 1.3 1056200200056 0.2414 0.2679 1.186 0.6 1.3 1056200200057 0.2679 0.2990 1.247 0.5 1.2 1056200200058 0.2990 0.3358 1.239 0.5 1.2 1056200200059 0.3358 0.3799 1.266 0.4 1.2 1056200200060 0.3799 0.4332 1.302 0.4 1.2 1056200200061 0.4332 0.4987 1.367 0.4 1.2 1056200200062 0.4987 0.5802 1.395 0.3 1.2 1056200200063 0.5802 0.6834 1.435 0.3 1.2 1056200200064 0.6834 0.7135 1.459 0.5 1.2 1056200200065 0.7135 0.7457 1.478 0.5 1.2 1056200200066 0.7457 0.7801 1.505 0.5 1.2 1056200200067 0.7801 0.8169 1.526 0.5 1.2 1056200200068 0.8169 0.8564 1.519 0.5 1.2 1056200200069 0.8564 0.8988 1.481 0.5 1.2 1056200200070 0.8988 0.9445 1.449 0.5 1.2 1056200200071 0.9445 0.9937 1.425 0.5 1.2 1056200200072 0.9937 1.047 1.431 0.5 1.3 1056200200073 1.047 1.104 1.454 0.4 1.3 1056200200074 1.104 1.167 1.469 0.4 1.3 1056200200075 1.167 1.235 1.518 0.4 1.3 1056200200076 1.235 1.309 1.540 0.4 1.3 1056200200077 1.309 1.390 1.555 0.4 1.3 1056200200078 1.390 1.478 1.550 0.4 1.3 1056200200079 1.478 1.576 1.540 0.4 1.3 1056200200080 1.576 1.683 1.530 0.4 1.3 1056200200081 1.683 1.802 1.527 0.4 1.3 1056200200082 1.802 1.934 1.505 0.4 1.3 1056200200083 1.934 2.081 1.512 0.4 1.3 1056200200084 2.081 2.245 1.521 0.4 1.3 1056200200085 2.245 2.429 1.499 0.5 1.3 1056200200086 2.429 2.638 1.497 0.5 1.3 1056200200087 2.638 2.874 1.498 0.5 1.3 1056200200088 2.874 3.143 1.511 0.5 1.3 1056200200089 3.143 3.453 1.521 0.6 1.3 1056200200090 3.453 3.810 1.526 0.6 1.3 1056200200091 3.810 4.226 1.525 0.6 1.3 1056200200092 4.226 4.715 1.537 0.6 1.3 1056200200093 4.715 5.293 1.550 0.6 1.3 1056200200094 5.293 5.455 1.572 1.1 1.6 1056200200095 5.455 5.623 1.565 1.1 1.6 1056200200096 5.623 5.800 1.589 1.1 1.6 1056200200097 5.800 5.986 1.613 1.1 1.6 1056200200098 5.986 6.180 1.579 1.1 1.6 1056200200099 6.180 6.384 1.505 1.0 1.6 1056200200100 6.384 6.598 1.450 1.0 1.6 1056200200101 6.598 6.824 1.361 1.0 1.6 1056200200102 6.824 7.061 1.309 1.0 1.6 1056200200103 7.061 7.311 1.272 1.0 1.6 1056200200104 7.311 7.574 1.269 1.0 1.6 1056200200105 7.574 7.852 1.249 1.0 1.6 1056200200106 7.852 8.146 1.227 1.0 1.6 1056200200107 8.146 8.456 1.225 1.0 1.6 1056200200108 8.456 8.785 1.202 1.1 1.7 1056200200109 8.785 9.133 1.248 1.1 1.7 1056200200110 9.133 9.502 1.216 1.2 1.7 1056200200111 9.502 9.895 1.247 1.2 1.7 1056200200112 9.895 10.312 1.225 1.3 1.8 1056200200113 10.312 10.757 1.266 1.4 1.9 1056200200114 10.757 11.231 1.251 1.4 1.9 1056200200115 11.231 11.737 1.266 1.5 2.0 1056200200116 11.737 12.279 1.248 1.6 2.0 1056200200117 12.279 12.859 1.245 1.6 2.0 1056200200118 12.859 13.482 1.175 1.7 2.1 1056200200119 13.482 14.151 1.148 1.7 2.1 1056200200120 14.151 14.872 1.123 1.8 2.2 1056200200121 14.872 15.650 1.068 1.8 2.2 1056200200122 15.650 16.491 1.056 1.9 2.3 1056200200123 16.491 17.403 1.035 2.0 2.4 1056200200124 17.403 18.393 1.100 2.1 2.5 1056200200125 18.393 19.470 1.136 2.3 2.6 1056200200126 19.470 20.647 1.103 2.4 2.7 1056200200127 20.647 21.935 1.074 2.6 2.9 1056200200128 21.935 23.348 1.048 2.7 3.0 1056200200129 23.348 24.905 1.028 2.9 3.2 1056200200130 24.905 26.625 1.069 3.1 3.4 1056200200131 26.625 28.532 1.025 3.3 3.5 1056200200132 28.532 30.654 1.014 3.6 3.8 1. 1056200200133 ENDDATA 109 0 1056200200134 ENDSUBENT 133 0 1056200299999 SUBENT 10562003 20180507 14461056200300001 BIB 5 14 1056200300002 REACTION ((92-U-233(N,F),,SIG)/(92-U-235(N,F),,SIG)) 1056200300003 MONITOR ((92-U-233(N,F),,SIG,,AV)/(92-U-235(N,F),,SIG,,AV)) 1056200300004 Weighted average of the (1) 238U/235U and 238U/233U 1056200300005 ratio, and (2) thermal ratio. 1056200300006 FLAG (1.) The upper boundary energy (EN-MAX) of the highest 1056200300007 bin is not given in the article. The compiler 1056200300008 obtained it from the lower boundary energy and centre 1056200300009 energy in the article. There might be minor 1056200300010 difference of +/-0.001 MeV. 1056200300011 STATUS (TABLE) Table VIII of Nucl.Sci.Eng.666(1978)205 1056200300012 HISTORY (19771209C) 1056200300013 (20170724A) On. DATA-ERR -> ERR-T. EN -> EN-MIN/MAX, 1056200300014 MONIT-ERR added. 1056200300015 (20180507U) On. Free text under MONITOR revised. 1056200300016 ENDBIB 14 0 1056200300017 COMMON 4 3 1056200300018 EN-NRM-MIN EN-NRM-MAX MONIT MONIT-ERR 1056200300019 MEV MEV NO-DIM PER-CENT 1056200300020 1.75 4.0 1.498 1.8 1056200300021 ENDCOMMON 3 0 1056200300022 DATA 6 107 1056200300023 EN-MIN EN-MAX DATA ERR-S ERR-T FLAG 1056200300024 MEV MEV NO-DIM PER-CENT PER-CENT NO-DIM 1056200300025 0.0007 0.0010 1.474 2.6 3.2 1056200300026 0.0010 0.0015 1.294 1.8 2.6 1056200300027 0.0015 0.002 1.369 1.8 2.6 1056200300028 0.002 0.003 1.406 1.6 2.4 1056200300029 0.003 0.004 1.288 1.5 2.4 1056200300030 0.004 0.006 1.300 1.3 2.3 1056200300031 0.006 0.008 1.366 1.5 2.4 1056200300032 0.008 0.010 1.387 1.6 2.5 1056200300033 0.010 0.015 1.349 1.1 2.1 1056200300034 0.015 0.020 1.366 1.3 2.2 1056200300035 0.020 0.025 1.401 1.4 2.3 1056200300036 0.025 0.030 1.351 1.5 2.3 1056200300037 0.030 0.040 1.367 1.1 2.1 1056200300038 0.040 0.050 1.378 1.2 2.2 1056200300039 0.050 0.060 1.346 1.2 2.1 1056200300040 0.060 0.070 1.353 1.2 2.2 1056200300041 0.070 0.080 1.388 1.3 2.2 1056200300042 0.080 0.090 1.427 1.3 2.2 1056200300043 0.090 0.1000 1.415 1.3 2.2 1056200300044 0.1000 0.1059 1.435 1.1 2.1 1056200300045 0.1059 0.1134 1.442 1.1 2.1 1056200300046 0.1134 0.1218 1.437 1.0 2.1 1056200300047 0.1218 0.131 1.470 1.0 2.0 1056200300048 0.131 0.1414 1.517 0.9 2.0 1056200300049 0.1414 0.1531 1.489 0.9 2.0 1056200300050 0.1531 0.1662 1.506 0.8 2.0 1056200300051 0.1662 0.1812 1.529 0.7 2.0 1056200300052 0.1812 0.1982 1.570 0.7 1.9 1056200300053 0.1982 0.2178 1.598 0.6 1.9 1056200300054 0.2178 0.2404 1.664 0.6 1.9 1056200300055 0.2404 0.2667 1.701 0.6 1.9 1056200300056 0.2667 0.2976 1.749 0.5 1.9 1056200300057 0.2976 0.3342 1.730 0.5 1.9 1056200300058 0.3342 0.3780 1.729 0.4 1.9 1056200300059 0.3780 0.4310 1.717 0.4 1.9 1056200300060 0.4310 0.4960 1.719 0.4 1.8 1056200300061 0.4960 0.5768 1.695 0.3 1.9 1056200300062 0.5768 0.6793 1.709 0.3 1.8 1056200300063 0.6793 0.7091 1.693 0.5 1.9 1056200300064 0.7091 0.7410 1.684 0.5 1.9 1056200300065 0.7410 0.7751 1.665 0.5 1.9 1056200300066 0.7751 0.8116 1.678 0.5 1.9 1056200300067 0.8116 0.8507 1.651 0.5 1.9 1056200300068 0.8507 0.8927 1.623 0.5 1.9 1056200300069 0.8927 0.9380 1.586 0.5 1.9 1056200300070 0.9380 0.987 1.534 0.5 1.9 1056200300071 0.987 1.039 1.525 0.5 1.9 1056200300072 1.039 1.096 1.519 0.5 1.9 1056200300073 1.096 1.158 1.532 0.4 1.9 1056200300074 1.158 1.225 1.524 0.4 1.9 1056200300075 1.225 1.299 1.539 0.4 1.9 1056200300076 1.299 1.379 1.537 0.4 1.9 1056200300077 1.379 1.466 1.533 0.4 1.9 1056200300078 1.466 1.562 1.518 0.4 1.9 1056200300079 1.562 1.669 1.513 0.4 1.9 1056200300080 1.669 1.786 1.508 0.5 1.9 1056200300081 1.786 1.916 1.507 0.5 1.9 1056200300082 1.916 2.061 1.526 0.5 1.9 1056200300083 2.061 2.223 1.520 0.5 1.9 1056200300084 2.223 2.405 1.505 0.5 1.9 1056200300085 2.405 2.610 1.512 0.5 1.9 1056200300086 2.610 2.842 1.506 0.5 1.9 1056200300087 2.842 3.107 1.493 0.6 2.0 1056200300088 3.107 3.412 1.491 0.6 2.0 1056200300089 3.412 3.763 1.494 0.6 2.0 1056200300090 3.763 4.171 1.455 0.6 2.0 1056200300091 4.171 4.650 1.451 0.6 2.0 1056200300092 4.650 5.217 1.446 0.6 2.0 1056200300093 5.217 5.375 1.428 1.2 2.2 1056200300094 5.375 5.540 1.488 1.2 2.2 1056200300095 5.540 5.714 1.463 1.2 2.2 1056200300096 5.714 5.895 1.502 1.2 2.2 1056200300097 5.895 6.085 1.556 1.2 2.2 1056200300098 6.085 6.284 1.514 1.1 2.2 1056200300099 6.284 6.494 1.451 1.1 2.2 1056200300100 6.494 6.714 1.404 1.1 2.1 1056200300101 6.714 6.946 1.344 1.0 2.1 1056200300102 6.946 7.189 1.296 1.0 2.2 1056200300103 7.189 7.446 1.277 1.0 2.2 1056200300104 7.446 7.717 1.271 1.0 2.2 1056200300105 7.717 8.003 1.273 1.1 2.2 1056200300106 8.003 8.306 1.246 1.1 2.2 1056200300107 8.306 8.626 1.249 1.1 2.2 1056200300108 8.626 8.965 1.237 1.2 2.2 1056200300109 8.965 9.324 1.238 1.2 2.3 1056200300110 9.324 9.706 1.236 1.3 2.3 1056200300111 9.706 10.111 1.251 1.3 2.3 1056200300112 10.111 10.543 1.264 1.4 2.4 1056200300113 10.543 11.003 1.250 1.5 2.4 1056200300114 11.003 11.494 1.235 1.6 2.5 1056200300115 11.494 12.019 1.233 1.7 2.5 1056200300116 12.019 12.582 1.209 1.7 2.6 1056200300117 12.582 13.184 1.179 1.8 2.6 1056200300118 13.184 13.832 1.145 1.8 2.6 1056200300119 13.832 14.528 1.093 1.8 2.7 1056200300120 14.528 15.280 1.092 1.9 2.7 1056200300121 15.280 16.091 1.115 2.0 2.8 1056200300122 16.091 16.969 1.107 2.1 2.8 1056200300123 16.969 17.922 1.079 2.2 2.9 1056200300124 17.922 18.959 1.101 2.4 3.0 1056200300125 18.959 20.089 1.082 2.5 3.2 1056200300126 20.089 21.325 1.041 2.7 3.3 1056200300127 21.325 22.679 1.061 2.8 3.4 1056200300128 22.679 24.168 1.051 2.9 3.5 1056200300129 24.168 25.812 1.065 3.2 3.7 1056200300130 25.812 27.631 0.965 3.4 3.9 1056200300131 27.631 29.651 0.987 3.6 4.1 1. 1056200300132 ENDDATA 109 0 1056200300133 ENDSUBENT 132 0 1056200399999 ENDENTRY 3 0 1056299999999