ENTRY L0235 20180904 L038L023500000001 SUBENT L0235001 20180904 L038L023500100001 BIB 11 22 L023500100002 TITLE Photoneutron Cross Section of Ni58 L023500100003 AUTHOR (J.P.Roalsvig,R.N.H.Haslam,D.J.McKenzie) L023500100004 REFERENCE (J,CJP,37,607,1959) L023500100005 #doi:10.1139/p59-067 L023500100006 INSTITUTE (1CANSAS) L023500100007 FACILITY (BETAT,1CANSAS) The University of Saskatchewan L023500100008 betatron. L023500100009 INC-SOURCE (BRST) L023500100010 SAMPLE Nickel disks with diameter 2.5 cm and thickness 0.15 L023500100011 mm. L023500100012 METHOD (ACTIV) The activation curve and the cross-section L023500100013 curve for the reaction Ni58(gamma,n)Ni57 have been L023500100014 determined from threshold (12.0 MeV) up to 21.0 MeV. L023500100015 Nickel disks were irradiated in the center of the L023500100016 X-ray beam from the University of Saskatchewan 24-MeV L023500100017 betatron at a fixed distance from the target. The L023500100018 disks were irradiated at different maximum betatron L023500100019 energies, the irradiation procedure being the same L023500100020 for all disks. L023500100021 ANALYSIS (DECAY) L023500100022 DECAY-DATA (28-NI-57,34.1HR) L023500100023 HISTORY (20180904C) BP L023500100024 ENDBIB 22 0 L023500100025 NOCOMMON 0 0 L023500100026 ENDSUBENT 25 0 L023500199999 SUBENT L0235002 20180904 L038L023500200001 BIB 2 3 L023500200002 REACTION ((29-CU-63(G,N)29-CU-62,,SIG,,BRA)/ L023500200003 (28-NI-58(G,N)28-NI-57,,SIG,,BRA)) L023500200004 STATUS (TABLE) Table I, page 612. L023500200005 ENDBIB 3 0 L023500200006 NOCOMMON 0 0 L023500200007 DATA 2 1 L023500200008 EN DATA L023500200009 MEV NO-DIM L023500200010 22.0 3.5 L023500200011 ENDDATA 3 0 L023500200012 ENDSUBENT 11 0 L023500299999 SUBENT L0235003 20180904 L038L023500300001 BIB 4 12 L023500300002 REACTION 1(28-NI-58(G,0),,EN) L023500300003 2(28-NI-58(G,N),,WID) L023500300004 3(28-NI-58(G,N)28-NI-57,,SIG,,RES) L023500300005 FLAG (1.) The "photon difference method" of Katz and L023500300006 Cameron (1951). L023500300007 (2.) The "modified spectrum method" of Penfold and L023500300008 Leiss (1958). L023500300009 REL-REF (M,M0273001,L.Katz+,J,CJP,29,518,1951) L023500300010 Also used: A.S.Penfold, J.E.Leiss, 1958. L023500300011 Analysis of photo cross sections (Physics Research L023500300012 Laboratory, University of Illinois) L023500300013 STATUS (TABLE) Table I, page 612. L023500300014 ENDBIB 12 0 L023500300015 NOCOMMON 0 0 L023500300016 DATA 4 2 L023500300017 DATA 1DATA 2DATA 3FLAG L023500300018 MEV MEV MB NO-DIM L023500300019 20.5 7.2 29.0 1.0 L023500300020 20.5 8.0 21.0 2.0 L023500300021 ENDDATA 4 0 L023500300022 ENDSUBENT 21 0 L023500399999 SUBENT L0235004 20180904 L038L023500400001 BIB 4 10 L023500400002 REACTION (28-NI-58(G,N)28-NI-57,,INT) L023500400003 FLAG (1.) The "photon difference method" of Katz and L023500400004 Cameron (1951). L023500400005 (2.) The "modified spectrum method" of Penfold and L023500400006 Leiss (1958). L023500400007 REL-REF (M,M0273001,L.Katz+,J,CJP,29,518,1951) L023500400008 Also used: A.S.Penfold, J.E.Leiss, 1958. L023500400009 Analysis of photo cross sections (Physics L023500400010 Research Laboratory, University of Illinois) L023500400011 STATUS (TABLE) Table I, page 612. L023500400012 ENDBIB 10 0 L023500400013 COMMON 2 3 L023500400014 EN-MIN EN-MAX L023500400015 MEV MEV L023500400016 0.0 24.0 L023500400017 ENDCOMMON 3 0 L023500400018 DATA 2 2 L023500400019 DATA FLAG L023500400020 B*MEV NO-DIM L023500400021 0.20 1.0 L023500400022 0.16 2.0 L023500400023 ENDDATA 4 0 L023500400024 ENDSUBENT 23 0 L023500499999 ENDENTRY 4 0 L023599999999