ENTRY C2976 20240605 C297600000001 SUBENT C2976001 20240605 20250110 C297600100001 BIB 13 43 C297600100002 TITLE Development and Testing of Neutron Dosimetry C297600100003 Techniques for Accelerator-Based Irradiation C297600100004 Facilities C297600100005 AUTHOR (L.R.Greenwood,R.R.Heinrich,R.J.Kennerley, C297600100006 R.Medrzychowski) C297600100007 REFERENCE (J,NT,41,109,1978) C297600100008 #doi:10.13182/NT78-A32137 C297600100009 INSTITUTE (1USAANL) C297600100010 FACILITY (VDGT,1USAANL) C297600100011 INC-SPECT The deuteron beam, at energies of 14 and 16 MeV, was C297600100012 pulsed and bunched to produce a pulse on target every C297600100013 512 ns, with a time width <4 ns and an average C297600100014 intensity of ~1 nA. C297600100015 DETECTOR (SCIN) Neutron spectra were measured using a 4.7-cm C297600100016 diam x 4.6-cm-long cylindrical NE-213 liquid C297600100017 scintillator mounted on a 5-cm (2-in.)-diam RCA-8850 C297600100018 photomultiplier tube. C297600100019 SAMPLE The target assembly consisted of a 1.9-cm-diam X C297600100020 6.4-mm-thick beryllium disk with a brass backing C297600100021 plate 1.6 mm thick. C297600100022 METHOD (TOF,PSD) The differential neutron spectra were C297600100023 measured using the TOF technique. The TOF spectra C297600100024 were recorded at flight paths of 1 and 3 m for times C297600100025 up to three days. The flight path measured 3.7 m. C297600100026 Several spectra were also obtained using a flight C297600100027 path of 2.0 m to check the data analysis and to C297600100028 obtain data for lower energy neutrons. Pulse-shape C297600100029 discrimination was used to suppress the gamma C297600100030 background, which measured <1% of the neutron flux. C297600100031 ERR-ANALYS (DATA-ERR,,10.) The present study allows us to select C297600100032 a consistent set of foil reactions that can be used C297600100033 to unfold neutron spectra in the energy range up to C297600100034 20 MeV with integral errors of <10%. C297600100035 CORRECTION Scattering corrections were found to be insignificant, C297600100036 as might be expected due to the large size of the C297600100037 target room and the very forward peaked angular C297600100038 distribution of the emitted neutrons. Dead-time C297600100039 corrections, determined by gating the integrator C297600100040 frequency signal by the busy signal from the C297600100041 analog-to-digital converter, were <10%. C297600100042 COMMENT Compiler's comment: Continuous curves, points were C297600100043 chosen by the compiler. C297600100044 HISTORY (20240605C) BP C297600100045 ENDBIB 43 0 C297600100046 NOCOMMON 0 0 C297600100047 ENDSUBENT 46 0 C297600199999 SUBENT C2976002 20240605 20250110 C297600200001 BIB 2 3 C297600200002 REACTION (4-BE-9(D,X)0-NN-1,,PY/DA/DE,,TT/CH) C297600200003 STATUS (CURVE,,L.R.Greenwood+,J,NT,41,109,1978) C297600200004 Figs.4-5 page 112 of J,NT,41,109,1978. C297600200005 ENDBIB 3 0 C297600200006 NOCOMMON 0 0 C297600200007 DATA 4 302 C297600200008 EN ANG E DATA C297600200009 MEV ADEG MEV P/MEVMUCSR C297600200010 14. 0. 1.885 2.297E+09 C297600200011 14. 0. 2.393 2.057E+09 C297600200012 14. 0. 3.266 2.112E+09 C297600200013 14. 0. 4.183 2.190E+09 C297600200014 14. 0. 5.054 2.227E+09 C297600200015 14. 0. 5.917 2.112E+09 C297600200016 14. 0. 6.689 1.927E+09 C297600200017 14. 0. 7.497 1.640E+09 C297600200018 14. 0. 8.131 1.410E+09 C297600200019 14. 0. 8.632 1.178E+09 C297600200020 14. 0. 9.176 9.743E+08 C297600200021 14. 0. 9.806 8.054E+08 C297600200022 14. 0. 10.254 6.217E+08 C297600200023 14. 0. 10.829 4.610E+08 C297600200024 14. 0. 11.275 3.489E+08 C297600200025 14. 0. 11.759 2.512E+08 C297600200026 14. 0. 12.119 1.920E+08 C297600200027 14. 0. 12.427 1.357E+08 C297600200028 14. 0. 12.653 9.974E+07 C297600200029 14. 0. 13.019 8.012E+07 C297600200030 14. 0. 13.297 6.374E+07 C297600200031 14. 0. 13.796 5.220E+07 C297600200032 14. 0. 14.385 4.402E+07 C297600200033 14. 0. 14.889 3.788E+07 C297600200034 14. 0. 15.428 3.011E+07 C297600200035 14. 0. 15.837 2.418E+07 C297600200036 14. 0. 16.245 1.904E+07 C297600200037 14. 0. 16.481 1.545E+07 C297600200038 14. 0. 16.837 1.136E+07 C297600200039 14. 5. 1.967 2.208E+09 C297600200040 14. 5. 3.309 2.112E+09 C297600200041 14. 5. 3.963 2.149E+09 C297600200042 14. 5. 4.746 2.164E+09 C297600200043 14. 5. 5.524 2.074E+09 C297600200044 14. 5. 6.256 1.949E+09 C297600200045 14. 5. 6.764 1.728E+09 C297600200046 14. 5. 7.398 1.486E+09 C297600200047 14. 5. 7.863 1.317E+09 C297600200048 14. 5. 8.408 1.111E+09 C297600200049 14. 5. 8.782 9.565E+08 C297600200050 14. 5. 9.201 8.315E+08 C297600200051 14. 5. 9.664 7.299E+08 C297600200052 14. 5. 10.164 6.037E+08 C297600200053 14. 5. 10.497 5.302E+08 C297600200054 14. 5. 10.909 4.343E+08 C297600200055 14. 5. 11.475 3.005E+08 C297600200056 14. 5. 11.958 2.143E+08 C297600200057 14. 5. 12.315 1.590E+08 C297600200058 14. 5. 12.458 1.217E+08 C297600200059 14. 5. 12.747 1.069E+08 C297600200060 14. 5. 12.773 9.120E+07 C297600200061 14. 5. 13.157 8.582E+07 C297600200062 14. 5. 13.586 8.155E+07 C297600200063 14. 5. 13.969 7.599E+07 C297600200064 14. 5. 14.267 7.224E+07 C297600200065 14. 5. 14.691 6.533E+07 C297600200066 14. 5. 14.941 5.971E+07 C297600200067 14. 5. 15.233 5.349E+07 C297600200068 14. 5. 15.522 4.699E+07 C297600200069 14. 5. 15.683 4.211E+07 C297600200070 14. 5. 15.975 3.773E+07 C297600200071 14. 5. 16.134 3.316E+07 C297600200072 14. 5. 16.341 3.031E+07 C297600200073 14. 5. 16.460 2.744E+07 C297600200074 14. 5. 16.535 2.460E+07 C297600200075 14. 5. 16.696 2.205E+07 C297600200076 14. 5. 16.854 1.919E+07 C297600200077 14. 5. 16.885 1.721E+07 C297600200078 14. 5. 17.047 1.558E+07 C297600200079 14. 5. 17.082 1.439E+07 C297600200080 14. 5. 17.189 1.180E+07 C297600200081 14. 5. 17.201 1.303E+07 C297600200082 14. 10. 1.833 2.144E+09 C297600200083 14. 10. 2.434 1.996E+09 C297600200084 14. 10. 3.037 1.914E+09 C297600200085 14. 10. 3.905 1.890E+09 C297600200086 14. 10. 4.768 1.793E+09 C297600200087 14. 10. 5.585 1.651E+09 C297600200088 14. 10. 6.354 1.477E+09 C297600200089 14. 10. 6.862 1.309E+09 C297600200090 14. 10. 7.586 1.148E+09 C297600200091 14. 10. 8.135 9.975E+08 C297600200092 14. 10. 8.682 8.497E+08 C297600200093 14. 10. 9.140 7.169E+08 C297600200094 14. 10. 9.645 6.169E+08 C297600200095 14. 10. 10.188 5.101E+08 C297600200096 14. 10. 10.564 4.479E+08 C297600200097 14. 10. 11.067 3.779E+08 C297600200098 14. 10. 11.266 3.223E+08 C297600200099 14. 10. 11.759 2.512E+08 C297600200100 14. 10. 12.250 1.920E+08 C297600200101 14. 10. 12.449 1.637E+08 C297600200102 14. 10. 12.737 1.424E+08 C297600200103 14. 10. 13.468 1.325E+08 C297600200104 14. 10. 14.154 1.221E+08 C297600200105 14. 10. 14.748 1.082E+08 C297600200106 14. 10. 15.430 9.585E+07 C297600200107 14. 10. 15.886 7.929E+07 C297600200108 14. 10. 16.252 6.369E+07 C297600200109 14. 10. 16.529 5.017E+07 C297600200110 14. 10. 16.727 4.237E+07 C297600200111 14. 10. 16.877 3.440E+07 C297600200112 14. 10. 17.070 2.765E+07 C297600200113 14. 10. 17.197 1.842E+07 C297600200114 14. 10. 17.261 2.201E+07 C297600200115 14. 10. 17.435 1.510E+07 C297600200116 14. 10. 17.498 1.226E+07 C297600200117 14. 20. 1.697 2.041E+09 C297600200118 14. 20. 2.077 1.847E+09 C297600200119 14. 20. 2.539 1.605E+09 C297600200120 14. 20. 3.087 1.381E+09 C297600200121 14. 20. 3.680 1.211E+09 C297600200122 14. 20. 4.191 1.106E+09 C297600200123 14. 20. 4.827 9.608E+08 C297600200124 14. 20. 5.422 8.514E+08 C297600200125 14. 20. 6.276 7.463E+08 C297600200126 14. 20. 7.094 6.943E+08 C297600200127 14. 20. 7.560 6.278E+08 C297600200128 14. 20. 8.151 5.347E+08 C297600200129 14. 20. 8.656 4.646E+08 C297600200130 14. 20. 9.289 3.918E+08 C297600200131 14. 20. 9.836 3.371E+08 C297600200132 14. 20. 10.468 2.814E+08 C297600200133 14. 20. 11.098 2.326E+08 C297600200134 14. 20. 11.682 1.886E+08 C297600200135 14. 20. 12.056 1.623E+08 C297600200136 14. 20. 12.704 1.557E+08 C297600200137 14. 20. 13.613 1.506E+08 C297600200138 14. 20. 14.386 1.388E+08 C297600200139 14. 20. 14.895 1.242E+08 C297600200140 14. 20. 15.398 1.058E+08 C297600200141 14. 20. 15.859 9.108E+07 C297600200142 14. 20. 16.139 7.391E+07 C297600200143 14. 20. 16.551 6.055E+07 C297600200144 14. 20. 16.664 5.217E+07 C297600200145 14. 20. 16.818 4.364E+07 C297600200146 14. 20. 16.973 3.722E+07 C297600200147 14. 20. 17.042 3.176E+07 C297600200148 14. 20. 17.274 2.478E+07 C297600200149 14. 20. 17.293 1.993E+07 C297600200150 14. 20. 17.435 1.510E+07 C297600200151 14. 20. 17.537 1.178E+07 C297600200152 16. 0. 1.465 5.027E+09 C297600200153 16. 0. 1.736 3.834E+09 C297600200154 16. 0. 2.400 3.374E+09 C297600200155 16. 0. 3.364 3.084E+09 C297600200156 16. 0. 4.386 3.321E+09 C297600200157 16. 0. 5.531 3.472E+09 C297600200158 16. 0. 6.589 3.494E+09 C297600200159 16. 0. 7.420 2.986E+09 C297600200160 16. 0. 8.289 2.432E+09 C297600200161 16. 0. 9.076 2.039E+09 C297600200162 16. 0. 10.029 1.660E+09 C297600200163 16. 0. 10.897 1.339E+09 C297600200164 16. 0. 11.553 1.080E+09 C297600200165 16. 0. 12.205 8.307E+08 C297600200166 16. 0. 12.932 5.743E+08 C297600200167 16. 0. 13.578 4.128E+08 C297600200168 16. 0. 14.082 2.519E+08 C297600200169 16. 0. 14.592 1.645E+08 C297600200170 16. 0. 14.943 1.195E+08 C297600200171 16. 0. 15.592 8.842E+07 C297600200172 16. 0. 16.370 6.731E+07 C297600200173 16. 0. 17.524 4.925E+07 C297600200174 16. 0. 18.327 3.091E+07 C297600200175 16. 0. 19.085 1.903E+07 C297600200176 16. 0. 19.626 1.096E+07 C297600200177 16. 5. 1.463 4.931E+09 C297600200178 16. 5. 2.685 3.003E+09 C297600200179 16. 5. 3.445 2.967E+09 C297600200180 16. 5. 4.123 3.018E+09 C297600200181 16. 5. 4.886 3.069E+09 C297600200182 16. 5. 5.691 3.151E+09 C297600200183 16. 5. 6.451 3.114E+09 C297600200184 16. 5. 7.203 2.820E+09 C297600200185 16. 5. 7.740 2.460E+09 C297600200186 16. 5. 8.362 2.165E+09 C297600200187 16. 5. 9.024 1.852E+09 C297600200188 16. 5. 9.769 1.553E+09 C297600200189 16. 5. 10.601 1.340E+09 C297600200190 16. 5. 11.017 1.251E+09 C297600200191 16. 5. 12.122 8.390E+08 C297600200192 16. 5. 12.850 5.914E+08 C297600200193 16. 5. 13.776 3.570E+08 C297600200194 16. 5. 14.708 2.305E+08 C297600200195 16. 5. 14.945 1.936E+08 C297600200196 16. 5. 15.228 1.674E+08 C297600200197 16. 5. 15.759 1.378E+08 C297600200198 16. 5. 16.128 1.214E+08 C297600200199 16. 5. 16.670 1.111E+08 C297600200200 16. 5. 17.207 9.688E+07 C297600200201 16. 5. 17.833 8.950E+07 C297600200202 16. 5. 18.285 7.733E+07 C297600200203 16. 5. 18.734 6.490E+07 C297600200204 16. 5. 19.052 5.243E+07 C297600200205 16. 5. 19.330 4.319E+07 C297600200206 16. 5. 19.648 3.456E+07 C297600200207 16. 5. 19.881 2.766E+07 C297600200208 16. 5. 20.158 2.256E+07 C297600200209 16. 5. 20.349 1.824E+07 C297600200210 16. 5. 20.459 1.518E+07 C297600200211 16. 5. 20.651 1.227E+07 C297600200212 16. 10. 1.420 4.885E+09 C297600200213 16. 10. 2.309 3.155E+09 C297600200214 16. 10. 2.970 2.672E+09 C297600200215 16. 10. 3.685 2.540E+09 C297600200216 16. 10. 4.358 2.462E+09 C297600200217 16. 10. 5.077 2.457E+09 C297600200218 16. 10. 5.796 2.475E+09 C297600200219 16. 10. 6.594 2.352E+09 C297600200220 16. 10. 7.263 2.152E+09 C297600200221 16. 10. 7.758 1.895E+09 C297600200222 16. 10. 8.292 1.606E+09 C297600200223 16. 10. 8.834 1.470E+09 C297600200224 16. 10. 9.498 1.281E+09 C297600200225 16. 10. 10.249 1.149E+09 C297600200226 16. 10. 10.829 1.012E+09 C297600200227 16. 10. 11.449 8.739E+08 C297600200228 16. 10. 11.943 7.549E+08 C297600200229 16. 10. 12.519 6.395E+08 C297600200230 16. 10. 13.056 5.577E+08 C297600200231 16. 10. 13.581 4.249E+08 C297600200232 16. 10. 14.223 2.939E+08 C297600200233 16. 10. 15.041 2.173E+08 C297600200234 16. 10. 15.706 1.931E+08 C297600200235 16. 10. 16.711 1.731E+08 C297600200236 16. 10. 17.381 1.615E+08 C297600200237 16. 10. 18.169 1.367E+08 C297600200238 16. 10. 18.491 1.148E+08 C297600200239 16. 10. 18.685 9.550E+07 C297600200240 16. 10. 19.174 7.861E+07 C297600200241 16. 10. 19.494 6.412E+07 C297600200242 16. 10. 19.770 5.181E+07 C297600200243 16. 10. 20.050 4.393E+07 C297600200244 16. 10. 20.329 3.654E+07 C297600200245 16. 10. 20.520 2.925E+07 C297600200246 16. 15. 1.378 4.933E+09 C297600200247 16. 15. 2.059 3.250E+09 C297600200248 16. 15. 2.423 2.729E+09 C297600200249 16. 15. 3.129 2.379E+09 C297600200250 16. 15. 3.960 2.033E+09 C297600200251 16. 15. 4.799 1.895E+09 C297600200252 16. 15. 5.890 1.731E+09 C297600200253 16. 15. 6.811 1.583E+09 C297600200254 16. 15. 7.392 1.407E+09 C297600200255 16. 15. 8.055 1.215E+09 C297600200256 16. 15. 8.636 1.080E+09 C297600200257 16. 15. 9.259 9.599E+08 C297600200258 16. 15. 9.927 8.697E+08 C297600200259 16. 15. 10.761 7.725E+08 C297600200260 16. 15. 11.469 6.865E+08 C297600200261 16. 15. 12.005 5.930E+08 C297600200262 16. 15. 12.623 4.974E+08 C297600200263 16. 15. 13.159 4.296E+08 C297600200264 16. 15. 13.734 3.570E+08 C297600200265 16. 15. 14.381 2.591E+08 C297600200266 16. 15. 14.881 2.418E+08 C297600200267 16. 15. 15.680 2.298E+08 C297600200268 16. 15. 16.477 2.143E+08 C297600200269 16. 15. 17.187 1.960E+08 C297600200270 16. 15. 17.934 1.675E+08 C297600200271 16. 15. 18.343 1.448E+08 C297600200272 16. 15. 18.660 1.158E+08 C297600200273 16. 15. 18.984 9.916E+07 C297600200274 16. 15. 19.346 8.087E+07 C297600200275 16. 15. 19.542 6.859E+07 C297600200276 16. 15. 19.902 5.488E+07 C297600200277 16. 15. 20.058 4.746E+07 C297600200278 16. 15. 20.376 3.834E+07 C297600200279 16. 20. 1.505 4.931E+09 C297600200280 16. 20. 1.683 3.415E+09 C297600200281 16. 20. 1.959 2.759E+09 C297600200282 16. 20. 2.320 2.250E+09 C297600200283 16. 20. 2.810 1.853E+09 C297600200284 16. 20. 3.469 1.539E+09 C297600200285 16. 20. 4.211 1.254E+09 C297600200286 16. 20. 4.914 1.062E+09 C297600200287 16. 20. 5.748 9.339E+08 C297600200288 16. 20. 6.630 8.789E+08 C297600200289 16. 20. 7.377 7.513E+08 C297600200290 16. 20. 8.037 6.302E+08 C297600200291 16. 20. 8.952 5.385E+08 C297600200292 16. 20. 9.909 4.556E+08 C297600200293 16. 20. 10.701 4.047E+08 C297600200294 16. 20. 11.452 3.596E+08 C297600200295 16. 20. 12.197 3.045E+08 C297600200296 16. 20. 12.729 2.506E+08 C297600200297 16. 20. 13.511 2.002E+08 C297600200298 16. 20. 14.175 1.745E+08 C297600200299 16. 20. 15.139 1.595E+08 C297600200300 16. 20. 16.062 1.472E+08 C297600200301 16. 20. 16.977 1.258E+08 C297600200302 16. 20. 17.553 1.056E+08 C297600200303 16. 20. 18.076 7.965E+07 C297600200304 16. 20. 18.477 6.250E+07 C297600200305 16. 20. 18.875 4.810E+07 C297600200306 16. 20. 19.104 3.668E+07 C297600200307 16. 20. 19.374 2.770E+07 C297600200308 16. 20. 19.564 2.218E+07 C297600200309 16. 20. 19.678 1.918E+07 C297600200310 16. 20. 19.832 1.643E+07 C297600200311 16. 20. 19.977 1.265E+07 C297600200312 ENDDATA 304 0 C297600200313 ENDSUBENT 312 0 C297600299999 ENDENTRY 2 0 C297699999999