ENTRY 14254 20210920 14871425400000001 SUBENT 14254001 20210920 14871425400100001 BIB 9 41 1425400100002 TITLE Indirect determination of the 230Th(n,f) and 231Th(n,f)1425400100003 cross sections for thorium-based nuclear energy systems1425400100004 AUTHOR (B.L.Goldblum,S.R.Stroberg,J.M.Allmond,C.Angell, 1425400100005 L.A.Bernstein,D.L.Bleuel,J.T.Burke,J.Gibelin,L.Phair, 1425400100006 N.D.Scielzo,E.Swanberg,M.Wiedeking,E.B.Norman) 1425400100007 INSTITUTE (1USABRK,1USALRL,2FR GAN) 1425400100008 (1USAUSA) University of Richmond, Virginia 1425400100009 REFERENCE (J,PR/C,80,044610,2009) 1425400100010 FACILITY (CYCLO,1USABRK) Experiment performed using 88-Inch 1425400100011 Cyclotron at Lawrence Berkeley National Laboratory 1425400100012 SAMPLE The 232Th target of isotopic purity 99.99%, was a 1425400100013 self-supporting metallic foil with a thickness of 1425400100014 889(45)mu-g/cm2. 1425400100015 The 236U target of 184(5) mu-g/cm2 thickness was 1425400100016 prepared by electroplating uranium onto a 2.29 mg/cm2 1425400100017 Ta foil. The isotopic composition of the 236U target 1425400100018 was 99.7% 236U and 0.3% 234U. 1425400100019 DETECTOR (TELES,SI,SI) Charged particles detected by two 1425400100020 particle telescopes each consisting of two double- 1425400100021 sided Micron Semiconductor S2 type silicon detectors 1425400100022 (22 mm active inner diameter and 70 mm active outer 1425400100023 diameter), a 150 mu-m dE detector and a 994 mu-mE 1425400100024 detector, covering a forward angle range of 36deg to 1425400100025 67deg relative to the beam axis. 1425400100026 ERR-ANALYS (ERR-T) Total uncertainty 1425400100027 (ERR-1,,1.) Systematic uncertainty in beam intensity 1425400100028 (ERR-2,,1.) Systematic uncertainty in live time 1425400100029 fraction 1425400100030 (ERR-3,,1.) Elapsed time for data collection 1425400100031 (ERR-4) Systematic uncertainty in 232Th target 1425400100032 thickness 1425400100033 (ERR-5) Systematic uncertainty in 236U target 1425400100034 thickness 1425400100035 (ERR-6) Systematic uncertainty in reference cross 1425400100036 section 1425400100037 (ERR-7) Systematic uncertainty in fission tagging 1425400100038 efficiency 1425400100039 HISTORY (20091210C) Compiled by S.H. 1425400100040 (20160801A) OS. ERR-ANALYS corrected; correction of 1425400100041 MONIT-REF in subs. 2,3 1425400100042 (20210828A) OS. REACTIONs modified 1425400100043 ENDBIB 41 0 1425400100044 COMMON 3 3 1425400100045 ERR-4 ERR-5 ERR-7 1425400100046 PER-CENT PER-CENT PER-CENT 1425400100047 5. 3. 3. 1425400100048 ENDCOMMON 3 0 1425400100049 ENDSUBENT 48 0 1425400199999 SUBENT 14254002 20210920 14871425400200001 BIB 7 10 1425400200002 REACTION (90-TH-230(N,F),,SIG,,,DERIV) 1425400200003 STATUS (TABLE) Data presented in fig.2 of the reference sent 1425400200004 by author (B.L.G.) 1425400200005 ANALYSIS (SURGT) 232Th(He3,a+f) and 236U(He3,a+f) used as 1425400200006 surrogates of 230Th(n,f) and 234U(n,f) 1425400200007 CORRECTION Correction for equivalent excitation energy in both 1425400200008 compound systems was made 1425400200009 MONITOR (92-U-234(N,F),,SIG) 1425400200010 MONIT-REF (,,3,ENDF/B-VII.0,,2006) 1425400200011 HISTORY (20210828A) REACTION SF9 added 1425400200012 ENDBIB 10 0 1425400200013 COMMON 1 3 1425400200014 ERR-6 1425400200015 PER-CENT 1425400200016 3. 1425400200017 ENDCOMMON 3 0 1425400200018 DATA 3 125 1425400200019 EN DATA ERR-T 1425400200020 MEV B B 1425400200021 0.22 0.008 0.002 1425400200022 0.42 0.041 0.010 1425400200023 0.62 0.135 0.024 1425400200024 0.82 0.141 0.021 1425400200025 1.02 0.179 0.022 1425400200026 1.22 0.236 0.027 1425400200027 1.43 0.284 0.030 1425400200028 1.63 0.265 0.028 1425400200029 1.83 0.278 0.029 1425400200030 2.03 0.283 0.030 1425400200031 2.23 0.278 0.029 1425400200032 2.43 0.298 0.031 1425400200033 2.63 0.282 0.029 1425400200034 2.83 0.282 0.030 1425400200035 3.03 0.280 0.030 1425400200036 3.23 0.282 0.030 1425400200037 3.43 0.272 0.029 1425400200038 3.64 0.303 0.032 1425400200039 3.84 0.236 0.025 1425400200040 4.04 0.287 0.030 1425400200041 4.24 0.280 0.030 1425400200042 4.44 0.251 0.027 1425400200043 4.64 0.264 0.028 1425400200044 4.84 0.241 0.026 1425400200045 5.04 0.245 0.026 1425400200046 5.24 0.245 0.026 1425400200047 5.44 0.215 0.024 1425400200048 5.64 0.235 0.025 1425400200049 5.84 0.254 0.027 1425400200050 6.05 0.302 0.031 1425400200051 6.25 0.345 0.035 1425400200052 6.45 0.450 0.045 1425400200053 6.65 0.474 0.047 1425400200054 6.85 0.543 0.053 1425400200055 7.05 0.654 0.062 1425400200056 7.25 0.671 0.063 1425400200057 7.45 0.729 0.068 1425400200058 7.65 0.786 0.073 1425400200059 7.85 0.749 0.069 1425400200060 8.05 0.772 0.072 1425400200061 8.26 0.723 0.067 1425400200062 8.46 0.685 0.064 1425400200063 8.66 0.662 0.061 1425400200064 8.86 0.691 0.064 1425400200065 9.06 0.589 0.055 1425400200066 9.26 0.618 0.058 1425400200067 9.46 0.607 0.057 1425400200068 9.66 0.622 0.058 1425400200069 9.86 0.612 0.057 1425400200070 10.06 0.594 0.056 1425400200071 10.26 0.604 0.057 1425400200072 10.46 0.567 0.054 1425400200073 10.67 0.553 0.053 1425400200074 10.87 0.547 0.052 1425400200075 11.07 0.522 0.050 1425400200076 11.27 0.525 0.051 1425400200077 11.47 0.514 0.050 1425400200078 11.67 0.500 0.048 1425400200079 11.87 0.500 0.049 1425400200080 12.07 0.506 0.049 1425400200081 12.27 0.495 0.048 1425400200082 12.47 0.476 0.047 1425400200083 12.67 0.501 0.049 1425400200084 12.88 0.539 0.053 1425400200085 13.08 0.535 0.053 1425400200086 13.28 0.513 0.051 1425400200087 13.48 0.521 0.052 1425400200088 13.68 0.551 0.054 1425400200089 13.88 0.563 0.055 1425400200090 14.08 0.566 0.056 1425400200091 14.28 0.593 0.058 1425400200092 14.48 0.669 0.065 1425400200093 14.68 0.650 0.064 1425400200094 14.88 0.680 0.066 1425400200095 15.08 0.772 0.074 1425400200096 15.29 0.802 0.076 1425400200097 15.49 0.758 0.072 1425400200098 15.69 0.779 0.074 1425400200099 15.89 0.757 0.072 1425400200100 16.09 0.901 0.085 1425400200101 16.29 0.829 0.079 1425400200102 16.49 0.817 0.077 1425400200103 16.69 0.770 0.073 1425400200104 16.89 0.809 0.076 1425400200105 17.09 0.848 0.079 1425400200106 17.29 0.759 0.071 1425400200107 17.50 0.782 0.074 1425400200108 17.70 0.809 0.076 1425400200109 17.90 0.735 0.069 1425400200110 18.10 0.770 0.072 1425400200111 18.30 0.724 0.068 1425400200112 18.50 0.710 0.066 1425400200113 18.70 0.669 0.063 1425400200114 18.90 0.703 0.066 1425400200115 19.10 0.686 0.064 1425400200116 19.30 0.710 0.066 1425400200117 19.50 0.714 0.066 1425400200118 19.70 0.669 0.062 1425400200119 19.91 0.700 0.066 1425400200120 20.11 0.722 0.068 1425400200121 20.31 0.741 0.069 1425400200122 20.51 0.705 0.066 1425400200123 20.71 0.673 0.063 1425400200124 20.91 0.773 0.072 1425400200125 21.11 0.756 0.071 1425400200126 21.31 0.774 0.073 1425400200127 21.51 0.753 0.072 1425400200128 21.71 0.769 0.074 1425400200129 21.91 0.848 0.081 1425400200130 22.12 0.864 0.085 1425400200131 22.32 1.008 0.100 1425400200132 22.52 1.060 0.108 1425400200133 22.72 1.089 0.114 1425400200134 22.92 0.958 0.103 1425400200135 23.12 1.186 0.132 1425400200136 23.32 1.147 0.133 1425400200137 23.52 1.131 0.134 1425400200138 23.72 1.218 0.150 1425400200139 23.92 1.231 0.157 1425400200140 24.12 1.367 0.187 1425400200141 24.32 1.335 0.193 1425400200142 24.53 1.209 0.184 1425400200143 24.73 1.393 0.231 1425400200144 24.93 1.573 0.290 1425400200145 25.13 1.728 0.359 1425400200146 ENDDATA 127 0 1425400200147 ENDSUBENT 146 0 1425400299999 SUBENT 14254003 20210920 14871425400300001 BIB 7 10 1425400300002 REACTION (90-TH-231(N,F),,SIG,,,DERIV) 1425400300003 STATUS (TABLE) Data presented in fig.4 of the reference sent 1425400300004 by author (B.L.G.) 1425400300005 ANALYSIS (SURGT) 232Th(He3,He3'+f) and 236U(He3,He3'+f) 1425400300006 used as surrogates of 231Th(n,f) and 235U(n,f) 1425400300007 CORRECTION Correction for equivalent excitation energy in both 1425400300008 compound systems was made 1425400300009 MONITOR (92-U-235(N,F),,SIG) 1425400300010 MONIT-REF (,,3,ENDF/B-VII.0,,2006) 1425400300011 HISTORY (20210828A) REACTION SF9 added 1425400300012 ENDBIB 10 0 1425400300013 COMMON 1 3 1425400300014 ERR-6 1425400300015 PER-CENT 1425400300016 1. 1425400300017 ENDCOMMON 3 0 1425400300018 DATA 3 50 1425400300019 EN DATA ERR-T 1425400300020 MEV B B 1425400300021 0.16 0.510 0.038 1425400300022 0.36 0.731 0.055 1425400300023 0.56 0.424 0.033 1425400300024 0.77 0.338 0.026 1425400300025 0.97 0.296 0.023 1425400300026 1.17 0.297 0.024 1425400300027 1.37 0.301 0.024 1425400300028 1.57 0.307 0.025 1425400300029 1.77 0.312 0.026 1425400300030 1.97 0.333 0.027 1425400300031 2.17 0.331 0.028 1425400300032 2.37 0.354 0.029 1425400300033 2.57 0.319 0.027 1425400300034 2.77 0.344 0.029 1425400300035 2.97 0.376 0.032 1425400300036 3.18 0.349 0.030 1425400300037 3.38 0.331 0.029 1425400300038 3.58 0.310 0.027 1425400300039 3.78 0.316 0.028 1425400300040 3.98 0.318 0.029 1425400300041 4.18 0.303 0.028 1425400300042 4.38 0.315 0.029 1425400300043 4.58 0.290 0.027 1425400300044 4.78 0.279 0.027 1425400300045 4.98 0.285 0.027 1425400300046 5.18 0.283 0.027 1425400300047 5.39 0.293 0.029 1425400300048 5.59 0.303 0.030 1425400300049 5.79 0.271 0.027 1425400300050 5.99 0.262 0.026 1425400300051 6.19 0.308 0.031 1425400300052 6.39 0.294 0.031 1425400300053 6.59 0.316 0.033 1425400300054 6.79 0.361 0.038 1425400300055 6.99 0.386 0.041 1425400300056 7.19 0.365 0.039 1425400300057 7.39 0.417 0.046 1425400300058 7.59 0.440 0.049 1425400300059 7.80 0.395 0.046 1425400300060 8.00 0.464 0.055 1425400300061 8.20 0.502 0.063 1425400300062 8.40 0.511 0.067 1425400300063 8.60 0.524 0.068 1425400300064 8.80 0.403 0.056 1425400300065 9.00 0.516 0.076 1425400300066 9.20 0.471 0.074 1425400300067 9.40 0.388 0.066 1425400300068 9.60 0.437 0.082 1425400300069 9.80 0.481 0.099 1425400300070 10.00 0.303 0.070 1425400300071 ENDDATA 52 0 1425400300072 ENDSUBENT 71 0 1425400399999 ENDENTRY 3 0 1425499999999