ENTRY 14396 20140911 14051439600000001 SUBENT 14396001 20140911 14051439600100001 BIB 12 55 1439600100002 TITLE 236Pu(n,f), 237Pu(n,f), and 238Pu(n,f) cross sections 1439600100003 deduced from (p,t), (p,d), and (p,p') surrogate 1439600100004 reactions 1439600100005 AUTHOR (R.O.Hughes,C.W.Beausang,T.J.Ross,J.T.Burke, 1439600100006 R.J.Casperson,N.Cooper,J.E.Escher,K.Gell,E.Good, 1439600100007 P.Humby,M.McCleskey,A.Saastimoinen,T.D.Tarlow, 1439600100008 I.J.Thompson) 1439600100009 INSTITUTE (1USALRL,1USAYAL,1USATAM) 1439600100010 (1USAUSA) University of Richmond, Richmond, Virginia 1439600100011 REFERENCE (J,PR/C,90,014304,2014) 1439600100012 REL-REF (O,C2153001,,J,PR/C,90,014304,2014) Cross sections 1439600100013 ratios of surrogate reactions induced by charged 1439600100014 particles, from which cross sections in subs 2,3,4 1439600100015 are determined, are compiled in entry C2153 1439600100016 FACILITY (CYCLO,1USATAM) Experiment performed at the K-150 1439600100017 cyclotron facility at Texas A&M University 1439600100018 DETECTOR Measurement performed using STARLiTeR setup, 1439600100019 consisting of Silicon Telescope Array for Reaction 1439600100020 Studies (STARS) and the Livermore-Texas-Richmond array 1439600100021 LiTeR of up to six Compton-suppressed clover gamma- 1439600100022 ray detectors 1439600100023 (TELES,SI,SI)STARS consisted of one 140 mu-m dE and 1439600100024 two 1000 mu-m Micron S2 type silicon detectors placed 1439600100025 downstream of the target for the detection of 1439600100026 outgoing protons, deuterons and tritons between 36deg 1439600100027 and 67deg. Another 140 mu-m Micron S2 type detector 1439600100028 was placed upstream for the detection of coincident 1439600100029 fission fragments at backward angles between 108deg 1439600100030 and 135deg. Each S2 detector had 8 sectors and 24 1439600100031 1-mm-wide rings to provide position sensitivity in 1439600100032 measuring incident charged particles 1439600100033 (HPGE) LiTeR array consists of up to six Compton- 1439600100034 suppressed clover gamma-ray detectors, of which five 1439600100035 were used in the present experiment. 1439600100036 METHOD (EDE) Particle were identified using E-dE method. In 1439600100037 the energy range relevant to the (p,df) and (p,tf) 1439600100038 reactions, all particles were stopped in the E1 1439600100039 detector, the E2 detector was needed for stopping 1439600100040 protons and higher energy deuterons. 1439600100041 SAMPLE In surrogate method enriched targets 235U and 239Pu 1439600100042 were used. Target thickness ratio 235U/239Pu was 1439600100043 measured using alpha particle spectra and was found 1439600100044 2.58+-0.18. For both targets, contaminant isotopic 1439600100045 species are less than 1%. 1439600100046 HISTORY (20140911C) Compiled by S.H. 1439600100047 ERR-ANALYS (DATA-ERR) Total uncertainty, including 1439600100048 - statistical uncertainties 1439600100049 - systematic uncertainties 1439600100050 - uncertainties in CN formation cross calculations 1439600100051 ANALYSIS Data at the approximate En values, where the outgoing 1439600100052 light ion energy falls below nominal Coulomb barrier 1439600100053 are considered as unreliable, based on previous 1439600100054 surrogate measurement, which deviate from the directly1439600100055 measured (n,f) cross section at equivalent neutron 1439600100056 energies. Unreliable data are marked with flag. 1439600100057 ENDBIB 55 0 1439600100058 COMMON 1 3 1439600100059 EN-ERR 1439600100060 MEV 1439600100061 0.1 1439600100062 ENDCOMMON 3 0 1439600100063 ENDSUBENT 62 0 1439600199999 SUBENT 14396002 20140911 14051439600200001 BIB 4 10 1439600200002 REACTION (94-PU-236(N,F),,SIG,,,DERIV) 1439600200003 STATUS (CURVE) Data taken from fig.11b of the reference 1439600200004 waiting for data from author 1439600200005 ANALYSIS (SURGT) Surrogate ratio method was used. Two surrogate 1439600200006 measurements in identical setup with two different 1439600200007 targets 235U and 239Pu were performed. Surrogate 1439600200008 reactions were (p,t). From ratio of cross sections 1439600200009 235U(p,tf)/239Pu(p,tf) cross section of 236Pu(n,f) 1439600200010 was determined 1439600200011 FLAG (1.) Data considered as unreliable 1439600200012 ENDBIB 10 0 1439600200013 NOCOMMON 0 0 1439600200014 DATA 4 88 1439600200015 EN DATA DATA-ERR FLAG 1439600200016 MEV B B NO-DIM 1439600200017 0.05 3.312 0.438 1439600200018 0.15 2.673 0.353 1439600200019 0.25 2.400 0.322 1439600200020 0.35 2.101 0.277 1439600200021 0.45 2.203 0.295 1439600200022 0.55 2.172 0.291 1439600200023 0.65 2.396 0.317 1439600200024 0.75 2.530 0.326 1439600200025 0.85 2.659 0.353 1439600200026 0.95 2.338 0.304 1439600200027 1.05 2.494 0.322 1439600200028 1.15 2.436 0.317 1439600200029 1.25 2.579 0.340 1439600200030 1.35 2.883 0.376 1439600200031 1.45 2.767 0.358 1439600200032 1.55 2.963 0.384 1439600200033 1.65 2.986 0.384 1439600200034 1.75 2.977 0.389 1439600200035 1.85 2.901 0.259 1439600200036 1.95 2.950 0.268 1439600200037 2.05 2.950 0.268 1439600200038 2.15 2.887 0.259 1439600200039 2.25 3.151 0.295 1439600200040 2.35 2.856 0.255 1439600200041 2.45 2.954 0.268 1439600200042 2.55 2.852 0.264 1439600200043 2.65 2.977 0.264 1439600200044 2.75 3.004 0.264 1439600200045 2.85 2.641 0.241 1439600200046 2.95 2.838 0.259 1439600200047 3.05 2.789 0.246 1439600200048 3.15 2.650 0.241 1439600200049 3.25 2.807 0.259 1439600200050 3.35 2.856 0.255 1439600200051 3.45 2.776 0.246 1439600200052 3.55 2.664 0.246 1439600200053 3.65 2.677 0.246 1439600200054 3.75 2.615 0.237 1439600200055 3.85 2.825 0.255 1439600200056 3.95 2.811 0.264 1439600200057 4.05 2.489 0.228 1439600200058 4.15 2.516 0.223 1439600200059 4.25 2.561 0.241 1439600200060 4.35 2.637 0.237 1439600200061 4.45 2.811 0.264 1439600200062 4.55 2.776 0.259 1439600200063 4.65 2.409 0.219 1439600200064 4.75 2.373 0.224 1439600200065 4.85 2.427 0.223 1439600200066 4.95 2.489 0.228 1439600200067 5.05 2.619 0.241 1439600200068 5.15 2.391 0.215 1439600200069 5.25 2.530 0.241 1439600200070 5.35 2.427 0.223 1439600200071 5.45 2.355 0.219 1439600200072 5.55 2.431 0.228 1439600200073 5.65 2.458 0.228 1439600200074 5.75 2.838 0.268 1439600200075 5.85 2.239 0.206 1439600200076 5.95 2.628 0.250 1439600200077 6.10 2.633 0.241 1439600200078 6.20 2.342 0.223 1439600200079 6.30 2.726 0.255 1439600200080 6.40 2.543 0.237 1439600200081 6.50 2.355 0.224 1439600200082 6.60 2.445 0.237 1439600200083 6.70 2.279 0.219 1439600200084 6.80 2.449 0.241 1439600200085 6.90 2.333 0.228 1439600200086 7.00 2.498 0.237 1439600200087 7.10 2.543 0.255 1439600200088 7.20 2.011 0.197 1439600200089 7.30 2.060 0.197 1439600200090 7.40 2.329 0.224 1439600200091 7.50 2.329 0.224 1. 1439600200092 7.60 2.154 0.201 1. 1439600200093 7.70 2.226 0.219 1. 1439600200094 7.80 2.159 0.219 1. 1439600200095 7.90 1.761 0.179 1. 1439600200096 8.00 1.761 0.179 1. 1439600200097 8.10 1.877 0.183 1. 1439600200098 8.20 1.627 0.170 1. 1439600200099 8.30 1.962 0.210 1. 1439600200100 8.40 1.792 0.197 1. 1439600200101 8.50 1.747 0.183 1. 1439600200102 8.60 1.680 0.183 1. 1439600200103 8.70 1.877 0.210 1. 1439600200104 8.80 1.864 0.198 1. 1439600200105 ENDDATA 90 0 1439600200106 ENDSUBENT 105 0 1439600299999 SUBENT 14396003 20140911 14051439600300001 BIB 4 10 1439600300002 REACTION (94-PU-237(N,F),,SIG,,,DERIV) 1439600300003 STATUS (CURVE) Data taken from fig. 9b of the reference 1439600300004 waiting for data from author 1439600300005 ANALYSIS (SURGT) Surrogate ratio method was used. Two surrogate 1439600300006 measurements in identical setup with two different 1439600300007 targets 235U and 239Pu were performed. Surrogate 1439600300008 reactions were (p,d). From ratio of cross sections 1439600300009 235U(p,df)/239Pu(p,df) cross section of 237Pu(n,f) 1439600300010 was determined 1439600300011 FLAG (1.) Data considered as unreliable 1439600300012 ENDBIB 10 0 1439600300013 NOCOMMON 0 0 1439600300014 DATA 4 82 1439600300015 EN DATA DATA-ERR FLAG 1439600300016 MEV B B NO-DIM 1439600300017 0.05 2.850 0.361 1439600300018 0.15 2.609 0.335 1439600300019 0.25 2.700 0.343 1439600300020 0.35 2.369 0.305 1439600300021 0.45 2.330 0.305 1439600300022 0.55 2.348 0.300 1439600300023 0.65 2.395 0.309 1439600300024 0.75 2.356 0.305 1439600300025 0.85 2.215 0.283 1439600300026 0.95 2.361 0.305 1439600300027 1.05 2.369 0.305 1439600300028 1.15 2.416 0.322 1439600300029 1.25 2.330 0.305 1439600300030 1.35 2.403 0.318 1439600300031 1.45 2.420 0.313 1439600300032 1.55 2.274 0.288 1439600300033 1.65 2.325 0.305 1439600300034 1.75 2.488 0.322 1439600300035 1.85 2.540 0.219 1439600300036 1.95 2.441 0.210 1439600300037 2.05 2.548 0.215 1439600300038 2.15 2.299 0.202 1439600300039 2.25 2.360 0.210 1439600300040 2.35 2.390 0.215 1439600300041 2.45 2.364 0.206 1439600300042 2.55 2.501 0.223 1439600300043 2.65 2.402 0.219 1439600300044 2.75 2.287 0.202 1439600300045 2.85 2.342 0.193 1439600300046 2.95 2.432 0.215 1439600300047 3.05 2.321 0.210 1439600300048 3.15 2.299 0.202 1439600300049 3.25 2.325 0.202 1439600300050 3.35 2.261 0.197 1439600300051 3.45 2.402 0.219 1439600300052 3.55 2.162 0.189 1439600300053 3.65 2.244 0.197 1439600300054 3.75 2.235 0.202 1439600300055 3.85 2.179 0.189 1439600300056 3.95 2.081 0.180 1439600300057 4.05 2.257 0.206 1439600300058 4.15 2.123 0.197 1439600300059 4.25 2.165 0.193 1439600300060 4.35 2.140 0.189 1439600300061 4.45 1.895 0.167 1439600300062 4.55 2.007 0.180 1439600300063 4.65 2.148 0.189 1439600300064 4.75 2.144 0.193 1439600300065 4.85 1.921 0.167 1439600300066 4.95 2.028 0.180 1439600300067 5.05 1.899 0.172 1439600300068 5.15 2.152 0.193 1439600300069 5.25 1.938 0.172 1439600300070 5.35 2.011 0.185 1439600300071 5.45 1.848 0.167 1439600300072 5.55 1.852 0.172 1439600300073 5.65 2.080 0.189 1439600300074 5.75 1.904 0.172 1439600300075 5.85 2.152 0.189 1439600300076 5.95 2.225 0.202 1439600300077 6.05 2.032 0.185 1439600300078 6.15 2.170 0.189 1439600300079 6.30 2.131 0.193 1439600300080 6.40 2.204 0.206 1439600300081 6.50 1.946 0.172 1439600300082 6.60 2.286 0.215 1439600300083 6.70 2.328 0.219 1439600300084 6.80 2.049 0.189 1439600300085 6.90 2.131 0.193 1439600300086 7.00 2.007 0.180 1. 1439600300087 7.10 1.740 0.159 1. 1439600300088 7.20 1.748 0.159 1. 1439600300089 7.30 1.911 0.180 1. 1439600300090 7.40 1.443 0.133 1. 1439600300091 7.50 1.370 0.133 1. 1439600300092 7.60 1.349 0.129 1. 1439600300093 7.70 1.366 0.129 1. 1439600300094 7.80 1.113 0.112 1. 1439600300095 7.90 1.478 0.146 1. 1439600300096 8.00 1.057 0.103 1. 1439600300097 8.10 1.164 0.125 1. 1439600300098 8.20 0.259 0.110 1. 1439600300099 ENDDATA 84 0 1439600300100 ENDSUBENT 99 0 1439600399999 SUBENT 14396004 20140911 14051439600400001 BIB 6 15 1439600400002 REACTION (94-PU-238(N,F),,SIG,,,DERIV) 1439600400003 STATUS (CURVE) Data taken from fig.12 of the reference 1439600400004 waiting for data from author 1439600400005 ANALYSIS (SURGT) Surrogate ratio method was used. Two surrogate 1439600400006 measurements in identical setup with two different 1439600400007 targets 235U and 239Pu were performed. Surrogate 1439600400008 reactions were (p,p'). From ratio of cross sections 1439600400009 235U(p,p'f)/239Pu(p,p'f) cross section of 238Pu(n,f) 1439600400010 was determined. 1439600400011 Cross section determined from surrogate ratio 1439600400012 relative to ENDF/B-VII evaluation of 234U(n,f) 1439600400013 cross section. 1439600400014 FLAG (1.) Data considered as unreliable 1439600400015 MONITOR (92-U-234(N,F),,SIG) 1439600400016 MONIT-REF (,M.Chadwick+,3,ENDF/B-VII,,2011) 1439600400017 ENDBIB 15 0 1439600400018 NOCOMMON 0 0 1439600400019 DATA 4 158 1439600400020 EN DATA DATA-ERR FLAG 1439600400021 MEV B B NO-DIM 1439600400022 0.05 0.642 0.086 1439600400023 0.15 1.005 0.136 1439600400024 0.25 1.413 0.191 1439600400025 0.35 1.693 0.226 1439600400026 0.45 1.582 0.209 1439600400027 0.55 1.556 0.206 1439600400028 0.65 1.604 0.214 1439600400029 0.75 1.527 0.202 1439600400030 0.85 1.753 0.229 1439600400031 0.95 1.692 0.226 1439600400032 1.05 1.708 0.226 1439600400033 1.15 1.977 0.295 1439600400034 1.25 1.841 0.244 1439600400035 1.35 2.133 0.282 1439600400036 1.45 1.977 0.259 1439600400037 1.55 2.000 0.264 1439600400038 1.65 2.023 0.265 1439600400039 1.75 2.007 0.264 1439600400040 1.85 2.017 0.265 1439600400041 1.95 2.035 0.267 1439600400042 2.05 2.025 0.186 1439600400043 2.15 2.033 0.182 1439600400044 2.25 1.962 0.179 1439600400045 2.35 2.116 0.191 1439600400046 2.45 2.048 0.186 1439600400047 2.55 2.188 0.197 1439600400048 2.65 2.183 0.197 1439600400049 2.75 2.010 0.181 1439600400050 2.85 2.130 0.194 1439600400051 2.95 2.106 0.189 1439600400052 3.05 2.055 0.186 1439600400053 3.15 2.010 0.181 1439600400054 3.25 2.086 0.189 1439600400055 3.35 2.151 0.197 1439600400056 3.45 2.083 0.189 1439600400057 3.55 2.086 0.192 1439600400058 3.65 2.040 0.184 1439600400059 3.75 2.065 0.189 1439600400060 3.85 2.100 0.187 1439600400061 3.95 2.095 0.191 1439600400062 4.05 2.148 0.197 1439600400063 4.15 2.136 0.194 1439600400064 4.25 2.007 0.182 1439600400065 4.35 2.101 0.189 1439600400066 4.45 2.103 0.191 1439600400067 4.55 2.054 0.185 1439600400068 4.65 1.984 0.179 1439600400069 4.75 2.014 0.184 1439600400070 4.85 2.110 0.189 1439600400071 4.95 1.974 0.177 1439600400072 5.05 1.999 0.177 1439600400073 5.15 1.939 0.174 1439600400074 5.25 1.994 0.181 1439600400075 5.35 1.982 0.181 1439600400076 5.45 1.986 0.181 1439600400077 5.55 2.012 0.182 1439600400078 5.65 2.072 0.186 1439600400079 5.75 2.146 0.197 1439600400080 5.85 2.206 0.202 1439600400081 5.95 2.297 0.206 1439600400082 6.05 2.313 0.210 1439600400083 6.15 2.392 0.214 1439600400084 6.25 2.453 0.224 1439600400085 6.35 2.478 0.227 1439600400086 6.45 2.458 0.224 1439600400087 6.55 2.589 0.234 1439600400088 6.65 2.538 0.227 1439600400089 6.75 2.584 0.236 1439600400090 6.85 2.647 0.242 1439600400091 6.95 2.707 0.244 1439600400092 7.05 2.816 0.254 1439600400093 7.15 2.844 0.254 1439600400094 7.25 2.811 0.251 1439600400095 7.35 2.890 0.262 1439600400096 7.45 2.909 0.259 1439600400097 7.55 2.841 0.257 1439600400098 7.65 2.873 0.259 1439600400099 7.75 2.904 0.260 1439600400100 7.85 2.921 0.263 1439600400101 7.95 2.929 0.265 1439600400102 8.05 2.833 0.257 1439600400103 8.15 2.865 0.259 1439600400104 8.25 2.802 0.256 1439600400105 8.35 2.861 0.260 1439600400106 8.45 2.793 0.251 1439600400107 8.55 2.873 0.421 1439600400108 8.65 2.794 0.253 1439600400109 8.75 2.832 0.255 1439600400110 8.85 2.804 0.254 1439600400111 8.95 2.872 0.268 1439600400112 9.05 2.833 0.251 1439600400113 9.15 2.836 0.251 1439600400114 9.25 2.824 0.255 1439600400115 9.35 2.777 0.251 1439600400116 9.45 2.883 0.264 1439600400117 9.55 2.784 0.254 1439600400118 9.65 2.784 0.253 1439600400119 9.75 2.815 0.254 1439600400120 9.85 2.825 0.256 1439600400121 9.95 2.698 0.243 1439600400122 10.05 2.763 0.251 1439600400123 10.15 2.674 0.243 1439600400124 10.25 2.669 0.239 1439600400125 10.35 2.711 0.242 1439600400126 10.45 2.602 0.239 1439600400127 10.55 2.635 0.239 1439600400128 10.65 2.512 0.226 1439600400129 10.75 2.434 0.221 1439600400130 10.85 2.516 0.227 1439600400131 10.95 2.561 0.230 1439600400132 11.05 2.420 0.218 1439600400133 11.15 2.519 0.228 1439600400134 11.25 2.450 0.222 1439600400135 11.35 2.447 0.221 1439600400136 11.45 2.381 0.219 1439600400137 11.55 2.399 0.216 1439600400138 11.65 2.486 0.226 1439600400139 11.75 2.387 0.217 1439600400140 11.85 2.434 0.221 1. 1439600400141 11.95 2.426 0.221 1. 1439600400142 12.05 2.359 0.215 1. 1439600400143 12.15 2.397 0.219 1. 1439600400144 12.25 2.559 0.235 1. 1439600400145 12.35 2.404 0.219 1. 1439600400146 12.45 2.371 0.216 1. 1439600400147 12.55 2.479 0.228 1. 1439600400148 12.65 2.437 0.222 1. 1439600400149 12.75 2.263 0.206 1. 1439600400150 12.85 2.396 0.216 1. 1439600400151 13.00 2.596 0.238 1. 1439600400152 13.10 2.817 0.259 1. 1439600400153 13.20 2.255 0.202 1. 1439600400154 13.30 2.482 0.226 1. 1439600400155 13.40 2.626 0.242 1. 1439600400156 13.50 2.165 0.199 1. 1439600400157 13.60 2.635 0.244 1. 1439600400158 13.70 2.311 0.212 1. 1439600400159 13.80 2.268 0.207 1. 1439600400160 13.90 2.341 0.216 1. 1439600400161 14.00 2.607 0.241 1. 1439600400162 14.10 2.694 0.250 1. 1439600400163 14.20 2.592 0.243 1. 1439600400164 14.30 2.542 0.236 1. 1439600400165 14.40 2.384 0.220 1. 1439600400166 14.50 2.361 0.221 1. 1439600400167 14.60 2.796 0.260 1. 1439600400168 14.70 2.971 0.277 1. 1439600400169 14.80 2.661 0.247 1. 1439600400170 14.90 2.681 0.252 1. 1439600400171 15.00 2.308 0.217 1. 1439600400172 15.10 2.791 0.262 1. 1439600400173 15.20 2.679 0.253 1. 1439600400174 15.30 2.179 0.206 1. 1439600400175 15.40 2.262 0.211 1. 1439600400176 15.50 2.640 0.249 1. 1439600400177 15.60 2.933 0.277 1. 1439600400178 15.70 3.602 0.338 1. 1439600400179 15.80 2.533 0.297 1. 1439600400180 ENDDATA 160 0 1439600400181 ENDSUBENT 180 0 1439600499999 ENDENTRY 4 0 1439699999999