ENTRY 13748 20010829 00001374800000001 SUBENT 13748001 20010829 00001374800100001 BIB 13 45 1374800100002 INSTITUTE (1USALAS) 1374800100003 REFERENCE (J,PR/C,59,2836,199905) 1374800100004 AUTHOR (D.A.Smith,J.D.Bowman,B.E.Crawford,C.A.Grossman, 1374800100005 T.Haseyama,M.B.Johnson,A.Masaike,Y.Matsuda, 1374800100006 G.E.Mitchell,V.A.Nazarenko,S.I.Penttila,N.R.Roberson, 1374800100007 S.J.Seestrom,E.I.Sharapov,L.M.Smotritsky, 1374800100008 S.L.Stephenson, V.Yuan) 1374800100009 TITLE Neutron resonance spectroscopy of 117Sn from 1 eV to 1374800100010 1.5 keV. 1374800100011 FACILITY (ACCEL,1USALAS) Los Alamos Neutron Scattering Center, 1374800100012 59.4-m flight path 1374800100013 INC-SOURCE (SPALL) Neutrons created by 800 MeV proton pulse onto 1374800100014 a tungsten target and moderated to low energies using 1374800100015 chilled water. 1374800100016 SAMPLE Solid metal sample in the form of a rectangle 1374800100017 7.7 cm x 6.3 cm and 1.3 cm thick, enriched to 87.6% 1374800100018 in 117Sn and placed in the center of the detector. 1374800100019 METHOD (TOF) Radiative capture measurement. 1374800100020 DETECTOR (CSICR) Array of 24 CsI crystals with approximately 1374800100021 3.5 pi of detection solid angle. Crystals packed 1374800100022 tightly around the target in two arrays of 1374800100023 12 crystals each, with a 10-cm cylindrical hole 1374800100024 through the middle to allow access for the neutron 1374800100025 beam. 1374800100026 MONITOR 3HE scintillation detector of very well known 1374800100027 efficiency to determine the power law exponent in the 1374800100028 neutron flux. 1374800100029 Flight path length determined by fitting peaks to known1374800100030 neutron resonance energies in 232Th and other samples.1374800100031 Neutron flux and detector efficiency obtained by 1374800100032 fitting the detector count to known resonance 1374800100033 parameters in 117Sn. 1374800100034 CORRECTION Corrected using FITXS code for all major corrections 1374800100035 of the neutron TOF spectra - moderation time, detector1374800100036 efficiencies, flight path length, target temperature, 1374800100037 proton pulse width. 1374800100038 Also corrected for 1374800100039 . dead time (<35%), 1374800100040 . neutron capture after multiple scattering 1374800100041 (about 25%), 1374800100042 . contribution of trace amounts of Mn (in the vacuum 1374800100043 windows) made to the 342-eV and 358-eV resonances 1374800100044 (40% and 5% respectively). 1374800100045 STATUS No reply from J.D.Bowman to author proof. 1374800100046 HISTORY (20010724C) IS 1374800100047 ENDBIB 45 0 1374800100048 NOCOMMON 0 0 1374800100049 ENDSUBENT 48 0 1374800199999 SUBENT 13748002 20010724 00001374800200001 BIB 5 19 1374800200002 REACTION 1(50-SN-117(N,0),,EN) 1374800200003 2(50-SN-117(N,0),,J) 1374800200004 3(50-SN-117(N,0),,L) 1374800200005 4(50-SN-117(N,EL),,WID,,G) 1374800200006 5(50-SN-117(N,G),,WID) 1374800200007 6(50-SN-117(N,EL),,WID/RED,,G) 1374800200008 ANALYSIS Resonance parameters obtained using the time-of-flight 1374800200009 spectra and the fitting code FITXS. Orbital angular 1374800200010 momentum assignments made with a Bayesian analysis. 1374800200011 ASSUMED (ASSUM,50-SN-117(N,G),,WID) 1374800200012 STATUS Data taken from Table 1 of reference 1374800200013 ERR-ANALYS1(DATA-ERR) Systematic errors in determining the flight 1374800200014 path length and time offset are dominant; statistical 1374800200015 errors are about 0.001%. 1374800200016 4(DATA-ERR) Calibration uncertainty produces the 1374800200017 dominant error; statistical error is about 0.1%. 1374800200018 5(DATA-ERR) No information on source of uncertainty. 1374800200019 6(DATA-ERR) Calibration uncertainty produces the 1374800200020 dominant error; statistical error is about 0.1%. 1374800200021 ENDBIB 19 0 1374800200022 NOCOMMON 0 0 1374800200023 DATA 12 63 1374800200024 DATA 1DATA-ERR 1DATA 2DATA 3DATA 4DATA-ERR 41374800200025 DATA 5DATA-ERR 5DATA 6DATA-ERR 6ASSUM ASSUM-ERR 1374800200026 EV EV NO-DIM NO-DIM MILLI-EV MILLI-EV 1374800200027 MILLI-EV MILLI-EV MILLI-EV MILLI-EV MILLI-EV MILLI-EV 1374800200028 -29.2 0. 1374800200029 5.55 103. 6. 1374800200030 1.327 0.001 1. 1.38 -4 7. -61374800200031 148. 10. 42.8 2.1 130. 10. 1374800200032 15.385 0.016 1. 9.2 -5 5. -61374800200033 136. 18. 0.72 0.04 130. 10. 1374800200034 21.390 0.025 1. 2.06 -4 1.1 -51374800200035 113. 16. 0.99 0.05 130. 10. 1374800200036 26.215 0.034 1. 2.07 -3 1. -41374800200037 129. 8. 7.32 0.4 130. 10. 1374800200038 34.044 0.017 1. 0.0187 9. -41374800200039 119. 9. 44.8 2.2 130. 10. 1374800200040 38.80 0.05 1. 0. 3.10 0.15 1374800200041 100. 15. 0.50 0.02 103. 6. 1374800200042 74.39 0.04 1. 0.034 0.002 1374800200043 25.20 1.3 130. 10. 1374800200044 120.54 0.06 1. 0. 4.95 0.25 1374800200045 107. 12. 0.45 0.02 103. 6. 1374800200046 123.90 0.07 0. 0. 2.1 0.1 1374800200047 0.19 0.01 103. 6. 1374800200048 158.33 0.09 1. 0.0025 1. -41374800200049 0.60 0.03 130. 10. 1374800200050 166.32 0.09 1. 0.160 0.008 1374800200051 35.4 1.8 130. 10. 1374800200052 196.20 0.11 1. 0. 12.2 0.6 1374800200053 104. 13. 0.87 0.04 103. 6. 1374800200054 200.78 0.12 1. 0.48 0.02 1374800200055 79.6 4.0 130. 10. 1374800200056 221.17 0.13 1. 0.22 0.01 1374800200057 31.1 1.6 130. 10. 1374800200058 275.21 0.17 1. 0.17 0.01 1374800200059 17.3 0.9 130. 10. 1374800200060 297.36 0.18 1. 0.43 0.02 1374800200061 40.1 2.0 130. 10. 1374800200062 341.63 0.22 0. 15.9 0.8 1374800200063 0.86 0.04 103. 6. 1374800200064 357.60 0.23 0. 12.0 3.5 1374800200065 0.63 0.2 103. 6. 1374800200066 400.03 0.27 0. 3.7 0.2 1374800200067 110. 19. 0.19 0.01 103. 6. 1374800200068 420.73 0.28 1. 0. 62.5 7.5 1374800200069 105. 20. 3.0 0.4 103. 6. 1374800200070 423.29 0.28 1. 1.55 0.08 1374800200071 84.5 4.2 130. 10. 1374800200072 458.99 0.32 0. 0. 12.5 1.5 1374800200073 0.58 0.07 103. 6. 1374800200074 488.46 0.34 1. 0.036 0.002 1374800200075 1.59 0.09 130. 10. 1374800200076 526.34 0.38 1. 0.96 0.07 1374800200077 37.9 2.6 130. 10. 1374800200078 532.62 0.38 1. 1.46 0.10 1374800200079 56.6 4.0 130. 10. 1374800200080 554.57 0.40 1. 0.74 0.06 1374800200081 27.0 2.1 130. 10. 1374800200082 573.24 0.42 1. 0.78 0.06 1374800200083 27.2 2.2 130. 10. 1374800200084 580.8 1.0 0. 0. 30. 3. 1374800200085 1.25 0.1 103. 6. 1374800200086 628.59 0.47 1. 0.141 0.013 1374800200087 4.25 0.4 130. 10. 1374800200088 646.68 0.49 1. 1.20 0.12 1374800200089 34.6 3.3 130. 10. 1374800200090 658.50 0.50 1. 2.2 0.2 1374800200091 60.8 6.0 130. 10. 1374800200092 685.74 0.53 1. 1.15 0.12 1374800200093 30.5 3.2 130. 10. 1374800200094 694.43 0.54 1. 0.19 0.02 1374800200095 5.0 0.5 130. 10. 1374800200096 698.31 0.54 1. 0.72 0.08 1374800200097 18.5 2.0 130. 10. 1374800200098 705.76 0.55 0. 2.6 0.3 1374800200099 0.10 0.01 103. 6. 1374800200100 789.41 0.64 0. 11.0 1.3 1374800200101 0.39 0.05 103. 6. 1374800200102 812.92 0.66 1. 0. 65. 6. 1374800200103 91. 27. 2.28 0.2 103. 6. 1374800200104 852.58 0.71 1. 0.79 0.10 1374800200105 15.0 1.9 130. 10. 1374800200106 864.51 0.72 0. 10.5 2.1 1374800200107 0.36 0.07 103. 6. 1374800200108 882.31 0.74 1. 3.6 0.5 1374800200109 65.3 8.70 103. 6. 1374800200110 939.22 0.80 0. 20. 2. 1374800200111 0.65 0.07 103. 6. 1374800200112 983.29 0.85 1. 0.92 0.13 1374800200113 14.1 2.0 130. 10. 1374800200114 989.37 0.86 0. 200. 30. 1374800200115 6.4 1.0 103. 6. 1374800200116 996.13 0.87 0. 90. 15. 1374800200117 2.9 0.5 103. 6. 1374800200118 1044.97 0.93 1. 0.42 0.06 1374800200119 5.9 0.9 130. 10. 1374800200120 1078.56 0.97 1. 0.66 0.10 1374800200121 8.8 1.4 130. 10. 1374800200122 1116.5 1.0 1. 0.37 0.06 1374800200123 4.7 0.7 130. 10. 1374800200124 1150.1 1.1 1. 1.14 0.18 1374800200125 13.9 2.2 130. 10. 1374800200126 1164.5 1.1 0. 15.6 2.5 1374800200127 0.46 0.07 103. 6. 1374800200128 1189.1 1.1 0. 9.7 1.6 1374800200129 0.28 0.05 103. 6. 1374800200130 1220.7 1.1 0. 8.8 1.5 1374800200131 0.25 0.04 103. 6. 1374800200132 1277.1 1.2 0. 8.1 1.4 1374800200133 0.23 0.04 103. 6. 1374800200134 1285.0 1.2 1. 2.3 0.4 1374800200135 23.9 4.1 130. 10. 1374800200136 1300.7 1.3 1. 1.9 0.3 1374800200137 19.8 3.4 130. 10. 1374800200138 1318.5 1.3 1. 5.5 0.9 1374800200139 54.4 9.4 130. 10. 1374800200140 1342.3 1.3 1. 0.35 0.06 1374800200141 3.4 0.6 130. 10. 1374800200142 1358.6 1.3 1. 0. 88. 9. 1374800200143 81. 30. 2.4 0.2 103. 6. 1374800200144 1388.7 1.4 1. 0.80 0.14 1374800200145 7.4 1.3 130. 10. 1374800200146 1397.7 1.4 1. 0.53 0.09 1374800200147 4.8 0.9 130. 10. 1374800200148 1442.0 1.4 1. 7.3 1.3 1374800200149 63.5 11.45 130. 10. 1374800200150 1472.8 1.5 1. 0.88 0.16 1374800200151 7.5 1.4 130. 10. 1374800200152 1488.5 1.5 0. 74. 7.5 1374800200153 1.91 0.2 103. 6. 1374800200154 ENDDATA 130 0 1374800200155 ENDSUBENT 154 0 1374800299999 SUBENT 13748003 20010724 00001374800300001 BIB 4 6 1374800300002 REACTION 1(50-SN-117(N,0),,D) 1374800300003 2(50-SN-117(N,EL),,STF) 1374800300004 CORRECTION Corrected for missing fraction of levels. 1374800300005 ERR-ANALYS (DATA-ERR) No information on contribution to 1374800300006 uncertainty given. 1374800300007 STATUS Data taken from Table 2 of reference 1374800300008 ENDBIB 6 0 1374800300009 COMMON 2 3 1374800300010 EN-RES-MIN EN-RES-MAX 1374800300011 EV KEV 1374800300012 1. 1.5 1374800300013 ENDCOMMON 3 0 1374800300014 DATA 5 2 1374800300015 MOMENTUM L DATA 1DATA-ERR 1DATA 2DATA-ERR 2 1374800300016 NO-DIM EV EV NO-DIM NO-DIM 1374800300017 0. 59.3 4.0 0.17 -04 0.05 -04 1374800300018 1. 3.4 -04 1. -04 1374800300019 ENDDATA 4 0 1374800300020 ENDSUBENT 19 0 1374800399999 ENDENTRY 3 0 1374899999999