ENTRY 14250 20250707 1425000000001 SUBENT 14250001 20250707 20251001 1425000100001 BIB 9 31 1425000100002 TITLE Surrogate ratio method in the actinide region using 1425000100003 the (alpha,alpha'f) reaction 1425000100004 AUTHOR (S.R.Lesher,J.T.Burke,L.A.Bernstein,H.Ai, 1425000100005 C.W.Beausang,D.L.Bleuel,R.M.Clark,F.S.Dietrich, 1425000100006 J.E.Escher,P.Fallon,J.Gibelin,B.L.Goldblum,I.Y.Lee, 1425000100007 A.O.Macchiavelli,M.A.Mcmahan,K.J.Moody,E.B.Norman, 1425000100008 L.Phair,E.Rodriguez-Vieitez,N.D.Scielzo,M.Wiedeking) 1425000100009 INSTITUTE (1USALRL,1USAYAL,1USABRK,1USAUCX) 1425000100010 (1USAUSA)University of Richmond,Richmond,Virginia 1425000100011 REFERENCE (J,PR/C,79,044609,2009) 1425000100012 #doi:10.1103/PhysRevC.79.044609 1425000100013 FACILITY (CYCLO,1USABRK) Alpha-particle beam from the 88-Inch 1425000100014 Cyclotron at Lawrence Berkeley National Laboratory. 1425000100015 SAMPLE Each target was made by electroplating uranium onto 1425000100016 a 2.29 mg/cm2 Ta foil. The 234U fission target had 1425000100017 an areal density of 253+-8 mu-g/cm2 and the 236U 1425000100018 target consisted of 99.68% 236U and 0.32% 234U with 1425000100019 an areal density of 184+-5 mu-g/cm2. 1425000100020 DETECTOR (TELES,SISD,SISD)The Silicon Telescope Array for 1425000100021 Reaction Studies (STARS) was used to detect 1425000100022 scattered alpha particles in coincidence with 1425000100023 outgoing fission fragments.The STARS array consisted 1425000100024 of three double-sided silicon strip detectors, each 1425000100025 segmented into 48 rings and 16 sectors. Each 1425000100026 detector had adjacent rings and sectors bussed 1425000100027 together for a total of 24 rings and 8 sectors. 1425000100028 (TELES,SI,SI)The particle telescope consisted of two 1425000100029 detectors, a 152 mu-m dE and a 994 mu-m E detector. 1425000100030 METHOD (EDE,COINC) 1425000100031 HISTORY (20090609C) Compiled by S.H. 1425000100032 (20250706U) OS. Minor correction in sub.2 1425000100033 ENDBIB 31 0 1425000100034 NOCOMMON 0 0 1425000100035 ENDSUBENT 34 0 1425000199999 SUBENT 14250002 20250707 20251001 1425000200001 BIB 6 25 1425000200002 REACTION ((92-U-233(N,F),,SIG,,,DERIV)/ 1425000200003 (92-U-235(N,F),,SIG,,,DERIV)) 1425000200004 STATUS (CURVE,,S.R.Lesher+,J,PR/C,79,044609,2009) 1425000200005 Data taken from fig. 6 of the reference 1425000200006 Waiting for data from the author 1425000200007 ERR-ANALYS (ERR-T) Total uncertainty 1425000200008 (ERR-S,3.0,5.0) Statistical uncertainty 1425000200009 (ERR-1) Systematic uncertainty arising from 1425000200010 uncertainty in target thickness 1425000200011 (ERR-2) Systematic uncertainty arising from 1425000200012 the choice of fragment energy threshold1425000200013 (EN-ERR1) Minimal value of energy uncertainty 1425000200014 (EN-ERR2) Maximal value of energy uncertainty, which 1425000200015 is energy dependent 1425000200016 ANALYSIS (SURGT) Ratio of fission probabilities was determined 1425000200017 using the Surrogate Method, based on the assumption 1425000200018 that a direct reaction can be used to form a compound 1425000200019 nucleus and the exit channel is independent of the 1425000200020 entrance channel. 1425000200021 CRITIQUE Weak point of the surrogate method is the assumption, 1425000200022 that a very similar distribution of compound states (in1425000200023 spin (J) x excitation energy (E) plane) is excited in 1425000200024 the neutron capture and surrogate direct reactions. 1425000200025 (Compiler's comment) 1425000200026 HISTORY (20250706U) Minor BIB text correction 1425000200027 ENDBIB 25 0 1425000200028 COMMON 4 3 1425000200029 EN-ERR1 EN-ERR2 ERR-1 ERR-2 1425000200030 KEV KEV PER-CENT PER-CENT 1425000200031 130.0 164.0 4.2 2.2 1425000200032 ENDCOMMON 3 0 1425000200033 DATA 3 148 1425000200034 EN DATA ERR-T 1425000200035 MEV NO-DIM NO-DIM 1425000200036 0.40 1.55 0.10 1425000200037 0.52 1.37 0.09 1425000200038 0.64 1.46 0.09 1425000200039 0.78 1.43 0.10 1425000200040 0.87 1.56 0.10 1425000200041 1.00 1.49 0.10 1425000200042 1.13 1.40 0.09 1425000200043 1.23 1.53 0.11 1425000200044 1.39 1.53 0.10 1425000200045 1.50 1.49 0.10 1425000200046 1.60 1.54 0.10 1425000200047 1.72 1.38 0.10 1425000200048 1.84 1.51 0.11 1425000200049 1.97 1.56 0.11 1425000200050 2.08 1.52 0.10 1425000200051 2.21 1.55 0.10 1425000200052 2.34 1.53 0.11 1425000200053 2.44 1.45 0.10 1425000200054 2.57 1.40 0.09 1425000200055 2.68 1.48 0.10 1425000200056 2.79 1.53 0.10 1425000200057 2.94 1.52 0.10 1425000200058 3.05 1.42 0.10 1425000200059 3.16 1.33 0.10 1425000200060 3.29 1.69 0.12 1425000200061 3.41 1.54 0.11 1425000200062 3.54 1.51 0.11 1425000200063 3.63 1.37 0.09 1425000200064 3.77 1.40 0.09 1425000200065 3.88 1.32 0.09 1425000200066 4.01 1.29 0.09 1425000200067 4.13 1.51 0.10 1425000200068 4.25 1.47 0.10 1425000200069 4.35 1.50 0.10 1425000200070 4.49 1.36 0.10 1425000200071 4.60 1.38 0.10 1425000200072 4.73 1.45 0.10 1425000200073 4.85 1.42 0.10 1425000200074 4.96 1.47 0.11 1425000200075 5.09 1.54 0.11 1425000200076 5.20 1.44 0.11 1425000200077 5.32 1.46 0.10 1425000200078 5.45 1.41 0.10 1425000200079 5.57 1.38 0.10 1425000200080 5.68 1.37 0.11 1425000200081 5.81 1.40 0.10 1425000200082 5.93 1.39 0.11 1425000200083 6.04 1.43 0.10 1425000200084 6.16 1.28 0.09 1425000200085 6.30 1.26 0.09 1425000200086 6.41 1.33 0.09 1425000200087 6.51 1.23 0.09 1425000200088 6.65 1.29 0.09 1425000200089 6.77 1.39 0.09 1425000200090 6.90 1.19 0.08 1425000200091 7.00 1.40 0.09 1425000200092 7.12 1.36 0.09 1425000200093 7.23 1.19 0.08 1425000200094 7.37 1.13 0.08 1425000200095 7.48 1.26 0.08 1425000200096 7.62 1.25 0.09 1425000200097 7.72 1.33 0.09 1425000200098 7.84 1.29 0.08 1425000200099 7.96 1.30 0.09 1425000200100 8.08 1.25 0.09 1425000200101 8.19 1.28 0.08 1425000200102 8.32 1.23 0.08 1425000200103 8.46 1.27 0.09 1425000200104 8.57 1.26 0.07 1425000200105 8.68 1.17 0.08 1425000200106 8.81 1.23 0.08 1425000200107 8.92 1.27 0.09 1425000200108 9.04 1.27 0.09 1425000200109 9.15 1.26 0.09 1425000200110 9.28 1.25 0.09 1425000200111 9.39 1.28 0.08 1425000200112 9.53 1.25 0.09 1425000200113 9.65 1.32 0.09 1425000200114 9.75 1.25 0.08 1425000200115 9.87 1.25 0.08 1425000200116 10.01 1.29 0.08 1425000200117 10.13 1.24 0.08 1425000200118 10.23 1.32 0.09 1425000200119 10.37 1.22 0.08 1425000200120 10.49 1.22 0.08 1425000200121 10.62 1.30 0.09 1425000200122 10.74 1.36 0.09 1425000200123 10.84 1.25 0.09 1425000200124 10.98 1.32 0.09 1425000200125 11.09 1.25 0.09 1425000200126 11.20 1.35 0.09 1425000200127 11.33 1.22 0.08 1425000200128 11.44 1.36 0.09 1425000200129 11.55 1.34 0.09 1425000200130 11.68 1.36 0.09 1425000200131 11.81 1.24 0.08 1425000200132 11.93 1.19 0.08 1425000200133 12.04 1.29 0.08 1425000200134 12.17 1.19 0.08 1425000200135 12.29 1.34 0.08 1425000200136 12.40 1.17 0.07 1425000200137 12.52 1.29 0.09 1425000200138 12.64 1.35 0.09 1425000200139 12.78 1.39 0.09 1425000200140 12.90 1.31 0.09 1425000200141 13.00 1.17 0.08 1425000200142 13.15 1.22 0.08 1425000200143 13.25 1.26 0.08 1425000200144 13.37 1.34 0.08 1425000200145 13.51 1.29 0.07 1425000200146 13.62 1.16 0.08 1425000200147 13.73 1.21 0.07 1425000200148 13.86 1.21 0.08 1425000200149 13.95 1.30 0.08 1425000200150 14.08 1.15 0.07 1425000200151 14.22 1.13 0.07 1425000200152 14.34 1.14 0.07 1425000200153 14.44 1.30 0.08 1425000200154 14.57 1.26 0.08 1425000200155 14.69 1.16 0.08 1425000200156 14.81 1.26 0.08 1425000200157 14.92 1.17 0.07 1425000200158 15.03 1.13 0.07 1425000200159 15.17 1.18 0.07 1425000200160 15.28 1.18 0.07 1425000200161 15.41 1.22 0.08 1425000200162 15.53 1.29 0.08 1425000200163 15.64 1.12 0.07 1425000200164 15.77 1.24 0.07 1425000200165 15.88 1.15 0.07 1425000200166 16.00 1.21 0.08 1425000200167 16.11 1.17 0.07 1425000200168 16.24 1.17 0.08 1425000200169 16.37 1.13 0.07 1425000200170 16.48 1.32 0.09 1425000200171 16.60 1.22 0.08 1425000200172 16.73 1.22 0.07 1425000200173 16.84 1.19 0.08 1425000200174 16.97 1.27 0.08 1425000200175 17.06 1.17 0.07 1425000200176 17.21 1.21 0.07 1425000200177 17.34 1.18 0.07 1425000200178 17.46 1.21 0.08 1425000200179 17.57 1.24 0.08 1425000200180 17.69 1.20 0.08 1425000200181 17.80 1.17 0.08 1425000200182 17.93 1.19 0.07 1425000200183 18.06 1.13 0.07 1425000200184 ENDDATA 150 0 1425000200185 ENDSUBENT 184 0 1425000299999 ENDENTRY 2 0 1425099999999