ENTRY M0207 20130606 M067M020700000001 SUBENT M0207001 20130606 M067M020700100001 BIB 19 65 M020700100002 TITLE The photoneutron cross section of B-10. M020700100003 AUTHOR (M.H.Ahsan,S.A.Siddiqui,H.H.Thies) M020700100004 INSTITUTE (3AULUWA) M020700100005 REFERENCE (J,NP/A,469,381,1987) M020700100006 #doi:10.1016/0375-9474(87)90027-3 M020700100007 FACILITY (SYNCH,3AULUWA) M020700100008 INC-SOURCE (BRST) M020700100009 DETECTOR (BF3) M020700100010 PART-DET (N) M020700100011 METHOD (EXTB) M020700100012 SAMPLE The target consisted of 500 g of boron enriched in M020700100013 B-10 to 93 % and was in the form of a cylinder 9 cm M020700100014 in diameter by 12.5 cm long. M020700100015 ANALYSIS (PLA) Penfold-Leiss analysis using various steps. M020700100016 yield scanning technique have been used in M020700100017 experiment. Yield ordinates were measured at 110 keV M020700100018 intervals and deconvoluted with analysis bin widths: M020700100019 440 and 330 keV. M020700100020 Additionally 'three point method' of Thies et al. was M020700100021 used for second stage experiment for 12-18 MeV M020700100022 photon energy region with improved by 30 % higher M020700100023 resolution (about 230 keV). The negative correlation M020700100024 of Penfold-Leiss method was removed using the M020700100025 decorrelation technique of Crawford et al. M020700100026 CORRECTION Yield ordinates were corrected for background. To M020700100027 allow for the 7 % content of B-11 in the target, M020700100028 cross section ordinates were corrected, using M020700100029 previously obtained cross section data for natural M020700100030 boron target, containing 80.4 % of B-11 and 19.6 % M020700100031 of B-10: M020700100032 sig(b-10) = 1.0954 x sig-enr.- 0.0954 x sig-nat. M020700100033 Also cross section ordinates were corrected for M020700100034 gamma absorption on the way to and inside B-10 M020700100035 target, neutron capture within target, truncation M020700100036 errors due to the penfold-leiss analysis, and for M020700100037 variation of neutron detection efficiency as M020700100038 function of target coordinates. Absolute cross M020700100039 section values are correct to about 10 %. M020700100040 ERR-ANALYS Mean-root-square errors are given. M020700100041 MONITOR (1-H-2(G,N)1-H-1,,SIG) M020700100042 MONIT-REF (,L.Hulthen+,J,PR,90,62,1953) M020700100043 (,F.Partovi,J,AP,27,79,1964) Both the data for M020700100044 deuteron photoneutron reaction cross section. M020700100045 REL-REF (N,,H.Thies+,J,NIM,100,45,1972) M020700100046 (N,,H.H.Thies+,J,NIM,178,181,1980) Both on the 'three M020700100047 point method' of yield scanning technique. M020700100048 (N,,D.M.Crawford+,J,NIM,109,573,1973) Decorrelation M020700100049 technique. M020700100050 (N,,H.Dahmen+,J,NIM,107,329,1973) M020700100051 (N,,M.H.Ahsan+,J,NIM,212,333,1983) Both on Penfold- M020700100052 Leiss analysis. M020700100053 STATUS (TABLE) The data have been digitized in usa LLNL by M020700100054 S.I.Warshaw and obtained by cdfe in the form of data M020700100055 tables. M020700100056 COMMENT The photoneutron cross section of B-10 was measured M020700100057 from threshold to 24.5 MeV with bremsstrahlung from M020700100058 30 MeV electron synchrotron using yield scanning M020700100059 techniques. Neutrons were detected by a high M020700100060 efficiency (BF-3)-counter detection system. The M020700100061 cross section shows a split E1-giant resonance M020700100062 region with major maxima at 20.2 and 23.0 MeV and a M020700100063 very minor resonance at 17.0 MeV. M020700100064 HISTORY (19920420C) M020700100065 (20130606A) Corrected by V.Varlamov: REACTION, M020700100066 STATUS, COMMENT, dates. M020700100067 ENDBIB 65 0 M020700100068 COMMON 1 3 M020700100069 DATA-ERR M020700100070 PER-CENT M020700100071 10. M020700100072 ENDCOMMON 3 0 M020700100073 ENDSUBENT 72 0 M020700199999 SUBENT M0207002 20130606 M067M020700200001 BIB 3 4 M020700200002 REACTION ((5-B-10(G,N)5-B-9,,SIG,,BRS)+ M020700200003 (5-B-10(G,N+P)4-BE-8,,SIG,,BRS)) M020700200004 STATUS Data from Fig 3. M020700200005 HISTORY (20130604A) Corrected by V.Varlamov: BRA -> BRS. M020700200006 ENDBIB 4 0 M020700200007 COMMON 1 3 M020700200008 ANAL-STEP M020700200009 KEV M020700200010 440. M020700200011 ENDCOMMON 3 0 M020700200012 DATA 2 113 M020700200013 EN DATA M020700200014 MEV MB M020700200015 8.592E+00 5.497E-02 M020700200016 8.878E+00 1.108E-01 M020700200017 9.069E+00 1.655E-01 M020700200018 9.356E+00 2.216E-01 M020700200019 9.604E+00 2.899E-01 M020700200020 9.871E+00 3.733E-01 M020700200021 1.008E+01 4.568E-01 M020700200022 1.020E+01 4.841E-01 M020700200023 1.035E+01 5.540E-01 M020700200024 1.052E+01 6.222E-01 M020700200025 1.065E+01 7.057E-01 M020700200026 1.079E+01 7.330E-01 M020700200027 1.092E+01 7.892E-01 M020700200028 1.107E+01 7.756E-01 M020700200029 1.119E+01 8.727E-01 M020700200030 1.130E+01 9.273E-01 M020700200031 1.142E+01 9.972E-01 M020700200032 1.157E+01 1.122E+00 M020700200033 1.182E+01 1.232E+00 M020700200034 1.203E+01 1.205E+00 M020700200035 1.216E+01 1.302E+00 M020700200036 1.224E+01 1.260E+00 M020700200037 1.239E+01 1.399E+00 M020700200038 1.251E+01 1.427E+00 M020700200039 1.262E+01 1.495E+00 M020700200040 1.275E+01 1.524E+00 M020700200041 1.285E+01 1.510E+00 M020700200042 1.295E+01 1.565E+00 M020700200043 1.319E+01 1.621E+00 M020700200044 1.337E+01 1.676E+00 M020700200045 1.348E+01 1.703E+00 M020700200046 1.359E+01 1.759E+00 M020700200047 1.371E+01 1.814E+00 M020700200048 1.392E+01 1.924E+00 M020700200049 1.405E+01 1.924E+00 M020700200050 1.417E+01 1.981E+00 M020700200051 1.434E+01 2.022E+00 M020700200052 1.449E+01 2.022E+00 M020700200053 1.472E+01 2.022E+00 M020700200054 1.493E+01 2.216E+00 M020700200055 1.512E+01 2.230E+00 M020700200056 1.526E+01 2.286E+00 M020700200057 1.535E+01 2.078E+00 M020700200058 1.548E+01 2.189E+00 M020700200059 1.554E+01 2.230E+00 M020700200060 1.568E+01 2.216E+00 M020700200061 1.585E+01 2.327E+00 M020700200062 1.598E+01 2.354E+00 M020700200063 1.611E+01 2.299E+00 M020700200064 1.627E+01 2.299E+00 M020700200065 1.634E+01 2.243E+00 M020700200066 1.642E+01 2.161E+00 M020700200067 1.661E+01 2.340E+00 M020700200068 1.684E+01 2.313E+00 M020700200069 1.707E+01 2.410E+00 M020700200070 1.737E+01 2.645E+00 M020700200071 1.755E+01 2.618E+00 M020700200072 1.757E+01 2.605E+00 M020700200073 1.764E+01 2.535E+00 M020700200074 1.779E+01 2.480E+00 M020700200075 1.795E+01 2.466E+00 M020700200076 1.818E+01 2.577E+00 M020700200077 1.839E+01 2.494E+00 M020700200078 1.858E+01 2.548E+00 M020700200079 1.873E+01 2.632E+00 M020700200080 1.894E+01 2.840E+00 M020700200081 1.925E+01 3.186E+00 M020700200082 1.959E+01 3.505E+00 M020700200083 1.982E+01 3.699E+00 M020700200084 1.999E+01 3.907E+00 M020700200085 2.030E+01 4.253E+00 M020700200086 2.039E+01 4.364E+00 M020700200087 2.053E+01 4.447E+00 M020700200088 2.074E+01 4.669E+00 M020700200089 2.095E+01 4.822E+00 M020700200090 2.095E+01 4.836E+00 M020700200091 2.121E+01 5.015E+00 M020700200092 2.150E+01 4.669E+00 M020700200093 2.159E+01 4.488E+00 M020700200094 2.171E+01 4.198E+00 M020700200095 2.175E+01 3.990E+00 M020700200096 2.188E+01 3.823E+00 M020700200097 2.209E+01 4.198E+00 M020700200098 2.211E+01 3.726E+00 M020700200099 2.234E+01 4.309E+00 M020700200100 2.240E+01 4.115E+00 M020700200101 2.243E+01 4.074E+00 M020700200102 2.253E+01 4.074E+00 M020700200103 2.264E+01 4.074E+00 M020700200104 2.280E+01 4.641E+00 M020700200105 2.295E+01 4.614E+00 M020700200106 2.310E+01 5.236E+00 M020700200107 2.326E+01 5.236E+00 M020700200108 2.337E+01 5.417E+00 M020700200109 2.348E+01 5.417E+00 M020700200110 2.368E+01 5.749E+00 M020700200111 2.381E+01 5.930E+00 M020700200112 2.389E+01 5.681E+00 M020700200113 2.400E+01 5.777E+00 M020700200114 2.408E+01 5.528E+00 M020700200115 2.417E+01 4.904E+00 M020700200116 2.421E+01 5.763E+00 M020700200117 2.432E+01 4.585E+00 M020700200118 2.438E+01 5.403E+00 M020700200119 2.453E+01 5.028E+00 M020700200120 2.453E+01 4.295E+00 M020700200121 2.461E+01 4.058E+00 M020700200122 2.467E+01 3.851E+00 M020700200123 2.484E+01 4.280E+00 M020700200124 2.492E+01 4.058E+00 M020700200125 2.507E+01 3.837E+00 M020700200126 2.509E+01 3.353E+00 M020700200127 2.526E+01 3.644E+00 M020700200128 ENDDATA 115 0 M020700200129 ENDSUBENT 128 0 M020700299999 SUBENT M0207003 20130606 M067M020700300001 BIB 3 4 M020700300002 REACTION ((5-B-10(G,N)5-B-9,,SIG,,BRS)+ M020700300003 (5-B-10(G,N+P)4-BE-8,,SIG,,BRS)) M020700300004 STATUS Data from Fig 3. M020700300005 HISTORY (20130604A) Corrected by V.Varlamov: BRA -> BRS. M020700300006 ENDBIB 4 0 M020700300007 COMMON 1 3 M020700300008 ANAL-STEP M020700300009 KEV M020700300010 330. M020700300011 ENDCOMMON 3 0 M020700300012 DATA 2 134 M020700300013 EN DATA M020700300014 MEV MB M020700300015 8.593E+00 4.232E-02 M020700300016 8.784E+00 7.054E-02 M020700300017 8.975E+00 9.875E-02 M020700300018 9.166E+00 1.699E-01 M020700300019 9.319E+00 1.980E-01 M020700300020 9.510E+00 2.415E-01 M020700300021 9.625E+00 2.836E-01 M020700300022 9.740E+00 3.257E-01 M020700300023 9.873E+00 3.412E-01 M020700300024 9.988E+00 3.832E-01 M020700300025 1.008E+01 4.113E-01 M020700300026 1.020E+01 4.394E-01 M020700300027 1.041E+01 5.687E-01 M020700300028 1.054E+01 6.668E-01 M020700300029 1.068E+01 7.244E-01 M020700300030 1.081E+01 6.964E-01 M020700300031 1.091E+01 7.962E-01 M020700300032 1.100E+01 6.668E-01 M020700300033 1.113E+01 8.102E-01 M020700300034 1.123E+01 8.522E-01 M020700300035 1.136E+01 9.939E-01 M020700300036 1.157E+01 1.094E+00 M020700300037 1.177E+01 1.207E+00 M020700300038 1.196E+01 1.165E+00 M020700300039 1.207E+01 1.235E+00 M020700300040 1.219E+01 1.193E+00 M020700300041 1.234E+01 1.393E+00 M020700300042 1.236E+01 1.393E+00 M020700300043 1.236E+01 1.393E+00 M020700300044 1.251E+01 1.435E+00 M020700300045 1.251E+01 1.449E+00 M020700300046 1.253E+01 1.435E+00 M020700300047 1.261E+01 1.479E+00 M020700300048 1.263E+01 1.493E+00 M020700300049 1.263E+01 1.493E+00 M020700300050 1.274E+01 1.435E+00 M020700300051 1.274E+01 1.435E+00 M020700300052 1.295E+01 1.578E+00 M020700300053 1.295E+01 1.578E+00 M020700300054 1.314E+01 1.620E+00 M020700300055 1.314E+01 1.606E+00 M020700300056 1.326E+01 1.606E+00 M020700300057 1.328E+01 1.606E+00 M020700300058 1.328E+01 1.606E+00 M020700300059 1.339E+01 1.706E+00 M020700300060 1.347E+01 1.648E+00 M020700300061 1.360E+01 1.776E+00 M020700300062 1.389E+01 1.890E+00 M020700300063 1.412E+01 1.962E+00 M020700300064 1.427E+01 1.962E+00 M020700300065 1.442E+01 1.976E+00 M020700300066 1.463E+01 1.976E+00 M020700300067 1.496E+01 2.217E+00 M020700300068 1.515E+01 2.217E+00 M020700300069 1.530E+01 2.075E+00 M020700300070 1.551E+01 2.161E+00 M020700300071 1.572E+01 2.261E+00 M020700300072 1.591E+01 2.374E+00 M020700300073 1.611E+01 2.275E+00 M020700300074 1.620E+01 2.217E+00 M020700300075 1.632E+01 2.303E+00 M020700300076 1.666E+01 2.189E+00 M020700300077 1.679E+01 2.472E+00 M020700300078 1.685E+01 2.189E+00 M020700300079 1.697E+01 2.373E+00 M020700300080 1.712E+01 2.486E+00 M020700300081 1.729E+01 2.843E+00 M020700300082 1.737E+01 2.630E+00 M020700300083 1.750E+01 2.630E+00 M020700300084 1.756E+01 2.402E+00 M020700300085 1.769E+01 2.602E+00 M020700300086 1.777E+01 2.430E+00 M020700300087 1.798E+01 2.472E+00 M020700300088 1.813E+01 2.744E+00 M020700300089 1.821E+01 2.444E+00 M020700300090 1.830E+01 2.402E+00 M020700300091 1.840E+01 2.275E+00 M020700300092 1.855E+01 2.644E+00 M020700300093 1.867E+01 2.516E+00 M020700300094 1.880E+01 2.800E+00 M020700300095 1.899E+01 2.885E+00 M020700300096 1.916E+01 2.999E+00 M020700300097 1.930E+01 2.943E+00 M020700300098 1.943E+01 3.398E+00 M020700300099 1.958E+01 3.354E+00 M020700300100 1.972E+01 3.753E+00 M020700300101 1.985E+01 3.668E+00 M020700300102 1.999E+01 3.739E+00 M020700300103 2.006E+01 3.867E+00 M020700300104 2.020E+01 3.837E+00 M020700300105 2.037E+01 4.364E+00 M020700300106 2.052E+01 4.436E+00 M020700300107 2.065E+01 4.663E+00 M020700300108 2.079E+01 4.833E+00 M020700300109 2.090E+01 4.635E+00 M020700300110 2.102E+01 4.947E+00 M020700300111 2.117E+01 5.160E+00 M020700300112 2.132E+01 5.046E+00 M020700300113 2.148E+01 4.961E+00 M020700300114 2.151E+01 4.805E+00 M020700300115 2.155E+01 4.663E+00 M020700300116 2.163E+01 4.521E+00 M020700300117 2.167E+01 4.294E+00 M020700300118 2.167E+01 3.995E+00 M020700300119 2.201E+01 4.322E+00 M020700300120 2.205E+01 3.853E+00 M020700300121 2.226E+01 4.478E+00 M020700300122 2.234E+01 4.180E+00 M020700300123 2.247E+01 4.308E+00 M020700300124 2.259E+01 4.222E+00 M020700300125 2.270E+01 4.521E+00 M020700300126 2.287E+01 4.819E+00 M020700300127 2.301E+01 5.132E+00 M020700300128 2.314E+01 5.004E+00 M020700300129 2.337E+01 5.843E+00 M020700300130 2.350E+01 5.928E+00 M020700300131 2.364E+01 6.170E+00 M020700300132 2.389E+01 6.441E+00 M020700300133 2.392E+01 6.100E+00 M020700300134 2.392E+01 6.114E+00 M020700300135 2.402E+01 6.098E+00 M020700300136 2.410E+01 6.098E+00 M020700300137 2.411E+01 6.255E+00 M020700300138 2.417E+01 5.928E+00 M020700300139 2.423E+01 5.288E+00 M020700300140 2.429E+01 6.114E+00 M020700300141 2.440E+01 4.891E+00 M020700300142 2.444E+01 5.729E+00 M020700300143 2.459E+01 5.274E+00 M020700300144 2.459E+01 4.450E+00 M020700300145 2.461E+01 4.847E+00 M020700300146 2.507E+01 4.222E+00 M020700300147 2.507E+01 3.640E+00 M020700300148 2.530E+01 4.194E+00 M020700300149 ENDDATA 136 0 M020700300150 ENDSUBENT 149 0 M020700399999 SUBENT M0207004 20130606 M067M020700400001 BIB 3 4 M020700400002 REACTION ((5-B-10(G,N)5-B-9,,SIG,,BRS)+ M020700400003 (5-B-10(G,N+P)4-BE-8,,SIG,,BRS)) M020700400004 STATUS (TABLE) M020700400005 HISTORY (20130604A) Corrected by V.Varlamov: BRA -> BRS. M020700400006 ENDBIB 4 0 M020700400007 COMMON 1 3 M020700400008 ANAL-STEP M020700400009 KEV M020700400010 230. M020700400011 ENDCOMMON 3 0 M020700400012 DATA 2 69 M020700400013 EN DATA M020700400014 MEV MB M020700400015 1.091E+01 3.218E-01 M020700400016 1.097E+01 3.361E-01 M020700400017 1.102E+01 3.496E-01 M020700400018 1.109E+01 3.496E-01 M020700400019 1.112E+01 3.699E-01 M020700400020 1.123E+01 4.112E-01 M020700400021 1.136E+01 4.594E-01 M020700400022 1.145E+01 5.210E-01 M020700400023 1.151E+01 5.210E-01 M020700400024 1.154E+01 5.278E-01 M020700400025 1.161E+01 5.489E-01 M020700400026 1.164E+01 5.489E-01 M020700400027 1.173E+01 5.691E-01 M020700400028 1.185E+01 6.105E-01 M020700400029 1.199E+01 6.722E-01 M020700400030 1.211E+01 7.406E-01 M020700400031 1.223E+01 7.541E-01 M020700400032 1.236E+01 8.301E-01 M020700400033 1.248E+01 8.639E-01 M020700400034 1.259E+01 8.985E-01 M020700400035 1.273E+01 9.466E-01 M020700400036 1.282E+01 9.947E-01 M020700400037 1.296E+01 1.070E+00 M020700400038 1.309E+01 1.098E+00 M020700400039 1.323E+01 1.180E+00 M020700400040 1.334E+01 1.289E+00 M020700400041 1.346E+01 1.269E+00 M020700400042 1.357E+01 1.214E+00 M020700400043 1.370E+01 1.317E+00 M020700400044 1.382E+01 1.386E+00 M020700400045 1.393E+01 1.386E+00 M020700400046 1.408E+01 1.544E+00 M020700400047 1.418E+01 1.482E+00 M020700400048 1.431E+01 1.619E+00 M020700400049 1.439E+01 1.516E+00 M020700400050 1.454E+01 1.605E+00 M020700400051 1.467E+01 1.708E+00 M020700400052 1.479E+01 1.735E+00 M020700400053 1.491E+01 1.797E+00 M020700400054 1.502E+01 1.852E+00 M020700400055 1.516E+01 1.968E+00 M020700400056 1.523E+01 1.797E+00 M020700400057 1.539E+01 2.016E+00 M020700400058 1.548E+01 1.948E+00 M020700400059 1.560E+01 1.948E+00 M020700400060 1.573E+01 2.099E+00 M020700400061 1.585E+01 2.099E+00 M020700400062 1.600E+01 2.189E+00 M020700400063 1.611E+01 2.243E+00 M020700400064 1.622E+01 2.216E+00 M020700400065 1.634E+01 2.202E+00 M020700400066 1.647E+01 2.387E+00 M020700400067 1.656E+01 2.284E+00 M020700400068 1.673E+01 2.477E+00 M020700400069 1.678E+01 2.264E+00 M020700400070 1.685E+01 2.181E+00 M020700400071 1.701E+01 2.332E+00 M020700400072 1.714E+01 2.463E+00 M020700400073 1.724E+01 2.401E+00 M020700400074 1.735E+01 2.387E+00 M020700400075 1.751E+01 2.559E+00 M020700400076 1.764E+01 2.593E+00 M020700400077 1.782E+01 2.833E+00 M020700400078 1.795E+01 2.902E+00 M020700400079 1.795E+01 2.565E+00 M020700400080 1.808E+01 2.580E+00 M020700400081 1.810E+01 2.277E+00 M020700400082 1.827E+01 2.525E+00 M020700400083 1.844E+01 2.744E+00 M020700400084 ENDDATA 71 0 M020700400085 ENDSUBENT 84 0 M020700499999 ENDENTRY 4 0 M020799999999