ENTRY 31503 20100923 31463150300000001 SUBENT 31503001 20100923 31463150300100001 BIB 15 33 3150300100002 TITLE Experimental neutron data:sigma(E) of vitreous silica 3150300100003 (SiO2) over the thermal energy range. 3150300100004 AUTHOR (J.J.Blostein,J.Dawidowski) 3150300100005 INSTITUTE (3ARGCAB) Centro Atomico Bariloche, CNEA, Argentina 3150300100006 EXP-YEAR (1999) 3150300100007 REFERENCE (W,DAWIDOWSKI,19990728) 3150300100008 FACILITY (LINAC,3ARGCAB) Pulsed 25 MeV electron linear 3150300100009 accelerator at the Centro Atomico Bariloche. 3150300100010 The Linac was run at 5O pps and 5 and 9.3 micro-amp 3150300100011 average current 3150300100012 INC-SOURCE Lead target + ple (2 cm and 4 cm thickness in 3150300100013 different runs) 3150300100014 SAMPLE Si-O2 powder sample at 293 deg-K. 3150300100015 Density = (2.22 + - 0.03) g/cm**3. 3150300100016 thicknesses = (1.50 + - 0.02) cm. 3150300100017 The vitrous silica sample was supplied by 3150300100018 Rutherford appleton 3150300100019 METHOD (TOF) Time of flight technique, flight paths = 8.33 m. 3150300100020 The sample-in sample-out method was used. 3150300100021 MONITOR Normalized transmission measurement. 3150300100022 DETECTOR (HE3SP) Seven He-3 counters, each of 2.5 cm diam. 3150300100023 and 15 cm active length, with 10 atm filling gas 3150300100024 pressure. 3150300100025 CORRECTION Performed: background, dead time and mean emission 3150300100026 time. 3150300100027 Negligible: in-scattering and multiple scattering. 3150300100028 ERR-ANALYS (ERR-S) Quoted errors due to statistics only. 3150300100029 STATUS (TABLE) Data received from authors 3150300100030 HISTORY (19990728C) Compiled by author 3150300100031 (19990901) finalized at NDS (VZ) 3150300100032 (20000503U) temperature units corrected (OS) 3150300100033 (20100923A) SD:Updated to lower case, 3150300100034 Cosmetic changes and corrections. 3150300100035 ENDBIB 33 0 3150300100036 COMMON 2 3 3150300100037 TEMP TEMP-ERR 3150300100038 K K 3150300100039 293. 1. 3150300100040 ENDCOMMON 3 0 3150300100041 ENDSUBENT 40 0 3150300199999 SUBENT 31503002 20100923 31463150300200001 BIB 1 1 3150300200002 REACTION (14-SI-OXI(N,TOT),,SIG) 3150300200003 ENDBIB 1 0 3150300200004 NOCOMMON 0 0 3150300200005 DATA 3 73 3150300200006 EN DATA ERR-S 3150300200007 EV B B 3150300200008 1.884E-03 10.43 0.30 3150300200009 2.113E-3 10.08 0.27 3150300200010 2.371E-3 9.60 0.23 3150300200011 2.661E-3 9.14 0.19 3150300200012 2.985E-3 8.83 0.17 3150300200013 3.350E-3 8.49 0.17 3150300200014 3.758E-3 8.36 0.15 3150300200015 4.217E-3 8.54 0.14 3150300200016 4.732E-3 8.89 0.12 3150300200017 5.309E-3 9.05 0.12 3150300200018 5.957E-3 9.20 0.10 3150300200019 6.683E-3 9.12 0.10 3150300200020 7.499E-3 9.20 0.09 3150300200021 8.414E-3 8.95 0.08 3150300200022 9.441E-3 9.07 0.09 3150300200023 1.026E-2 9.20 0.12 3150300200024 1.080E-2 9.17 0.09 3150300200025 1.136E-2 9.37 0.09 3150300200026 1.196E-2 9.47 0.09 3150300200027 1.259E-2 9.69 0.10 3150300200028 1.325E-2 9.87 0.08 3150300200029 1.395E-2 10.29 0.09 3150300200030 1.468E-2 10.40 0.07 3150300200031 1.545E-2 10.67 0.09 3150300200032 1.626E-2 10.46 0.08 3150300200033 1.711E-2 10.58 0.07 3150300200034 1.801E-2 10.47 0.08 3150300200035 1.896E-2 10.25 0.07 3150300200036 1.995E-2 10.24 0.08 3150300200037 2.100E-2 10.10 0.07 3150300200038 2.210E-2 9.94 0.07 3150300200039 2.431E-2 9.84 0.08 3150300200040 2.596E-2 9.68 0.08 3150300200041 2.772E-2 9.67 0.09 3150300200042 2.961E-2 9.55 0.07 3150300200043 3.162E-2 9.69 0.08 3150300200044 3.377E-2 9.77 0.07 3150300200045 3.607E-2 9.78 0.09 3150300200046 3.852E-2 9.84 0.09 3150300200047 4.114E-2 9.80 0.08 3150300200048 4.394E-2 9.89 0.07 3150300200049 4.693E-2 9.84 0.08 3150300200050 5.012E-2 9.81 0.08 3150300200051 5.353E-2 9.84 0.08 3150300200052 5.717E-2 9.75 0.08 3150300200053 6.105E-2 9.71 0.08 3150300200054 6.521E-2 9.63 0.08 3150300200055 6.964E-2 9.55 0.07 3150300200056 7.438E-2 9.56 0.09 3150300200057 7.943E-2 9.65 0.08 3150300200058 8.483E-2 9.70 0.08 3150300200059 9.060E-2 9.69 0.08 3150300200060 9.676E-2 9.69 0.10 3150300200061 1.033E-1 9.64 0.09 3150300200062 1.104E-1 9.60 0.10 3150300200063 1.179E-1 9.58 0.11 3150300200064 1.259E-1 9.51 0.10 3150300200065 1.345E-1 9.52 0.11 3150300200066 1.436E-1 9.57 0.10 3150300200067 1.534E-1 9.66 0.11 3150300200068 1.778E-1 9.53 0.08 3150300200069 2.239E-1 9.59 0.09 3150300200070 2.818E-1 9.60 0.11 3150300200071 3.548E-1 9.61 0.08 3150300200072 4.467E-1 9.69 0.09 3150300200073 5.623E-1 9.53 0.08 3150300200074 7.079E-1 9.64 0.09 3150300200075 8.913E-1 9.47 0.08 3150300200076 1.122 9.44 0.08 3150300200077 1.413 9.56 0.09 3150300200078 1.778 9.56 0.10 3150300200079 2.239 9.57 0.09 3150300200080 2.818 9.57 0.08 3150300200081 ENDDATA 75 0 3150300200082 ENDSUBENT 81 0 3150300299999 ENDENTRY 2 0 3150399999999