ENTRY 12867 20130624 13921286700000001 SUBENT 12867001 20130624 13921286700100001 BIB 10 25 1286700100002 TITLE Statistical tests for the detection of intermediate 1286700100003 structure: Application to the structure of the 238U 1286700100004 neutron capture cross section between 5 keV and 0.1 MeV1286700100005 AUTHOR (R.B.Perez,G.De Saussure,R.L.Macklin,J.Halperin) 1286700100006 REFERENCE (J,PR/C,20,528,197908) 1286700100007 #doi:10.1103/PhysRevC.20.528 1286700100008 INSTITUTE (1USAORL) 1286700100009 FACILITY (LINAC,1USAORL) ORELA 1286700100010 INC-SOURCE (EVAP) 1286700100011 SAMPLE 238U metallic sample thickness = 0.0028 atoms/barn. 1286700100012 PART-DET (G,N) 1286700100013 METHOD (TOF,PHD) Cross sections were measured for two 1286700100014 different paths and detector assemblies (sets I and 1286700100015 II). For each event the digital output was on-line 1286700100016 processed by application of a pulse-height weighting 1286700100017 scheme. The efficiency of the capture gamma ray 1286700100018 detector was obtained by the application of the 1286700100019 saturated resonance method to the 238U resonance at 1286700100020 6.7 eV. The shape of the neutron spectrum was 1286700100021 obtained with 10BF3 ionization chamber for set I, and 1286700100022 6Li glass detector for set II. 1286700100023 HISTORY (19850312C) 1286700100024 (20130624A) BP: Updated to new date formats,lower 1286700100025 case. corrections according last EXFOR rules and Dict. 1286700100026 Updated all subentries, digitized Fig.1. 1286700100027 ENDBIB 25 0 1286700100028 NOCOMMON 0 0 1286700100029 ENDSUBENT 28 0 1286700199999 SUBENT 12867002 20130624 13921286700200001 BIB 6 12 1286700200002 REACTION (92-U-238(N,G)92-U-239,,SIG) 1286700200003 DETECTOR (SCIN) Large liquid scintillator --- set I. 1286700200004 METHOD (TOF) 39.70-m flight path. Scintillator surrounds a 1286700200005 centrally located uranium sample -- set I. 1286700200006 ANALYSIS The data have been averaged in 1-keV intervals. The 1286700200007 averaged cross section fits were compared with 1286700200008 optical model calculations for capture and inelastic 1286700200009 channels. 1286700200010 STATUS (CURVE) Fig.1, page 528. Continuous curves and the 1286700200011 points for digitization were determined by the 1286700200012 compiler. 1286700200013 COMMENT Fig.1 scale has typo, it should be eV instead of keV. 1286700200014 ENDBIB 12 0 1286700200015 NOCOMMON 0 0 1286700200016 DATA 2 57 1286700200017 EN DATA 1286700200018 EV B 1286700200019 5.507E+03 1.058E+00 1286700200020 6.475E+03 9.648E-01 1286700200021 7.364E+03 8.662E-01 1286700200022 8.305E+03 8.665E-01 1286700200023 9.173E+03 8.501E-01 1286700200024 1.009E+04 7.994E-01 1286700200025 1.101E+04 8.027E-01 1286700200026 1.186E+04 8.673E-01 1286700200027 1.284E+04 7.235E-01 1286700200028 1.389E+04 7.209E-01 1286700200029 1.490E+04 7.238E-01 1286700200030 1.560E+04 7.380E-01 1286700200031 1.660E+04 6.574E-01 1286700200032 1.781E+04 6.860E-01 1286700200033 1.864E+04 6.730E-01 1286700200034 1.960E+04 6.135E-01 1286700200035 2.068E+04 6.280E-01 1286700200036 2.139E+04 5.747E-01 1286700200037 2.276E+04 5.726E-01 1286700200038 2.353E+04 5.552E-01 1286700200039 2.452E+04 5.683E-01 1286700200040 2.556E+04 5.221E-01 1286700200041 2.653E+04 5.554E-01 1286700200042 2.754E+04 5.161E-01 1286700200043 2.870E+04 5.641E-01 1286700200044 2.955E+04 5.283E-01 1286700200045 3.055E+04 4.967E-01 1286700200046 3.158E+04 4.930E-01 1286700200047 3.375E+04 5.007E-01 1286700200048 3.446E+04 4.689E-01 1286700200049 3.533E+04 4.565E-01 1286700200050 3.667E+04 4.745E-01 1286700200051 3.775E+04 4.654E-01 1286700200052 3.839E+04 4.276E-01 1286700200053 4.034E+04 4.549E-01 1286700200054 4.187E+04 4.638E-01 1286700200055 4.348E+04 4.179E-01 1286700200056 4.439E+04 3.959E-01 1286700200057 4.743E+04 4.037E-01 1286700200058 4.804E+04 3.694E-01 1286700200059 5.049E+04 3.681E-01 1286700200060 5.307E+04 3.421E-01 1286700200061 5.464E+04 3.266E-01 1286700200062 6.396E+04 3.255E-01 1286700200063 6.558E+04 3.084E-01 1286700200064 6.923E+04 2.790E-01 1286700200065 7.246E+04 2.833E-01 1286700200066 7.646E+04 2.957E-01 1286700200067 7.712E+04 2.644E-01 1286700200068 8.040E+04 2.495E-01 1286700200069 8.311E+04 2.515E-01 1286700200070 8.661E+04 2.584E-01 1286700200071 8.808E+04 2.401E-01 1286700200072 9.031E+04 2.258E-01 1286700200073 9.336E+04 2.284E-01 1286700200074 9.652E+04 2.106E-01 1286700200075 1.000E+05 2.107E-01 1286700200076 ENDDATA 59 0 1286700200077 ENDSUBENT 76 0 1286700299999 SUBENT 12867003 20130624 13921286700300001 BIB 4 15 1286700300002 REACTION 1(92-U-238(N,0),,EN) 1286700300003 2(92-U-238(N,EL),,WID) 1286700300004 ANALYSIS The capture data corresponding to set I was averaged 1286700300005 over energy intervals 0.4 keV intervals. Intermediate 1286700300006 structure analysis in terms of modulated strength 1286700300007 function. Capture and fission widths are assumed to 1286700300008 be negligible in comparison to the neutron width. 1286700300009 Wald-Wolfowitz distribution-free statistics for 1286700300010 detection of intermediate structures in the capture 1286700300011 cross sections was used. 1286700300012 ASSUMED (ASSUM1,92-U-238(N,0),,L) 1286700300013 (ASSUM2,92-U-238(N,0),,J) 1286700300014 (ASSUM3,92-U-238(N,G),,WID) 1286700300015 (ASSUM4,92-U-238(N,F),,WID) 1286700300016 STATUS (TABLE) Table VIII, page 541. 1286700300017 ENDBIB 15 0 1286700300018 COMMON 4 3 1286700300019 ASSUM1 ASSUM2 ASSUM3 ASSUM4 1286700300020 NO-DIM NO-DIM EV EV 1286700300021 1. 0.5 0.0 0.0 1286700300022 ENDCOMMON 3 0 1286700300023 DATA 2 9 1286700300024 DATA 1DATA 2 1286700300025 KEV KEV 1286700300026 13.8 1.05 1286700300027 20.0 116.3 1286700300028 30.0 25.6 1286700300029 37.0 0.71 1286700300030 44.0 22.8 1286700300031 50. 24.7 1286700300032 54.0 27.3 1286700300033 61.0 19.3 1286700300034 78. 3.85 1286700300035 ENDDATA 11 0 1286700300036 ENDSUBENT 35 0 1286700399999 SUBENT 12867004 20130624 13921286700400001 BIB 6 12 1286700400002 REACTION (92-U-238(N,G)92-U-239,,SIG) 1286700400003 DETECTOR (SCIN) Two symmetrically located nonhydrogenous 1286700400004 scintillation counters --- set II. 1286700400005 METHOD (TOF) 40.09-m flight path. Scintillation counters 1286700400006 viewing a uranium sample placed normal to the neutron 1286700400007 beam -- set II. 1286700400008 ANALYSIS The data have been averaged in 1-keV intervals. The 1286700400009 averaged cross section fits were compared with 1286700400010 optical model calculations for capture and inelastic 1286700400011 channels. 1286700400012 STATUS (CURVE) Fig.1, page 528. 1286700400013 COMMENT Fig.1 scale has typo, it should be eV instead of keV. 1286700400014 ENDBIB 12 0 1286700400015 NOCOMMON 0 0 1286700400016 DATA 2 60 1286700400017 EN DATA 1286700400018 EV B 1286700400019 5.486E+03 9.423E-01 1286700400020 6.423E+03 8.659E-01 1286700400021 7.335E+03 8.270E-01 1286700400022 8.273E+03 7.747E-01 1286700400023 9.177E+03 7.543E-01 1286700400024 1.005E+04 7.120E-01 1286700400025 1.102E+04 6.852E-01 1286700400026 1.196E+04 7.490E-01 1286700400027 1.289E+04 6.646E-01 1286700400028 1.384E+04 6.420E-01 1286700400029 1.485E+04 6.323E-01 1286700400030 1.573E+04 6.675E-01 1286700400031 1.675E+04 5.901E-01 1286700400032 1.774E+04 6.277E-01 1286700400033 1.865E+04 5.971E-01 1286700400034 1.960E+04 5.658E-01 1286700400035 2.060E+04 5.746E-01 1286700400036 2.166E+04 5.239E-01 1286700400037 2.257E+04 5.594E-01 1286700400038 2.363E+04 5.041E-01 1286700400039 2.452E+04 5.639E-01 1286700400040 2.514E+04 5.426E-01 1286700400041 2.642E+04 5.640E-01 1286700400042 2.709E+04 5.344E-01 1286700400043 2.847E+04 5.449E-01 1286700400044 2.931E+04 5.243E-01 1286700400045 3.030E+04 4.967E-01 1286700400046 3.158E+04 4.930E-01 1286700400047 3.265E+04 4.930E-01 1286700400048 3.375E+04 5.026E-01 1286700400049 3.432E+04 4.836E-01 1286700400050 3.532E+04 5.027E-01 1286700400051 3.652E+04 4.745E-01 1286700400052 3.775E+04 4.636E-01 1286700400053 3.839E+04 4.259E-01 1286700400054 4.034E+04 4.637E-01 1286700400055 4.239E+04 4.728E-01 1286700400056 4.439E+04 4.147E-01 1286700400057 4.665E+04 4.084E-01 1286700400058 4.843E+04 4.037E-01 1286700400059 5.050E+04 3.473E-01 1286700400060 5.263E+04 3.639E-01 1286700400061 5.463E+04 3.542E-01 1286700400062 5.649E+04 3.254E-01 1286700400063 5.889E+04 3.012E-01 1286700400064 6.138E+04 3.060E-01 1286700400065 6.396E+04 3.242E-01 1286700400066 6.558E+04 3.096E-01 1286700400067 6.810E+04 2.757E-01 1286700400068 6.982E+04 2.663E-01 1286700400069 7.276E+04 2.801E-01 1286700400070 7.616E+04 2.737E-01 1286700400071 7.811E+04 2.428E-01 1286700400072 8.073E+04 2.544E-01 1286700400073 8.417E+04 2.292E-01 1286700400074 8.591E+04 2.467E-01 1286700400075 8.881E+04 2.401E-01 1286700400076 9.374E+04 2.329E-01 1286700400077 9.693E+04 2.106E-01 1286700400078 1.000E+05 2.107E-01 1286700400079 ENDDATA 62 0 1286700400080 ENDSUBENT 79 0 1286700499999 ENDENTRY 4 0 1286799999999