ENTRY M0442 20160121 M081M044200000001 SUBENT M0442001 20160121 M081M044200100001 BIB 12 37 M044200100002 TITLE Photodisintegration cross section of beryllium M044200100003 near threshold. M044200100004 AUTHOR (W.John,J.M.Prosser) M044200100005 REFERENCE (J,PR,127,231,1962) M044200100006 INSTITUTE (1USALRL) M044200100007 INC-SOURCE Decay gammas from 124Sb (1.692 MeV), M044200100008 206Bi(1.720 MeV) and 28Al(1.780 MeV). M044200100009 METHOD (MANGB) The neutron yield was determined by comparing M044200100010 the (radioactive source - Be) photoneutron source to M044200100011 a Ra-Be standard source by means of a manganous M044200100012 sulfate bath (measurements of saturated manganese M044200100013 activity). M044200100014 SAMPLE The beryllium sample was in form of spherical shell M044200100015 with outside diameter of 8.2 cm and a thickness M044200100016 of 0.645 cm. M044200100017 PART-DET (B-) Saturated manganese activity. M044200100018 DETECTOR (GEMUC) The saturated activity of manganese in M044200100019 manganous sulfate bath was measured by Geiger tube. M044200100020 CORRECTION Some kinds of corrections to the data were used. M044200100021 These were corrections for: M044200100022 - peak-to-total ratio; M044200100023 - substraction of 2.09 MeV Compton tail; M044200100024 - half-life of Sb-124; M044200100025 - absolute strength of source; M044200100026 - neutron escape from manganous sulfate bath; M044200100027 - capture of fast neutrons in bath; M044200100028 - neutron counting statistics; M044200100029 - finite source-size; M044200100030 - gamma-ray attenuation in the Be shell; M044200100031 - neutrons produced by 2.09 MeV gamma rays. M044200100032 ERR-ANALYS (DATA-ERR) The errors given for cross section values M044200100033 are over-all uncertainties (square root of sum of M044200100034 squares). M044200100035 HISTORY (19910218C) M044200100036 (20160121A) Corrected by SD and VV: INC-SOURCE, M044200100037 METHOD, PART-DET, updated to new date formats, M044200100038 lowercase, cosmetic changes in all SUBENTs. M044200100039 ENDBIB 37 0 M044200100040 NOCOMMON 0 0 M044200100041 ENDSUBENT 40 0 M044200199999 SUBENT M0442002 20160121 M081M044200200001 BIB 3 5 M044200200002 REACTION (4-BE-9(G,X)0-NN-1,,SIG) M044200200003 STATUS (TABLE) Data from Table II of PR,127,231,1962 M044200200004 HISTORY (20160121A) Corrected by SD and VV: STATUS, M044200200005 DATA (cosmetic changes). SF3 = N -> X, SF4 = Be-8 -> M044200200006 NN-1 in REACTION. M044200200007 ENDBIB 5 0 M044200200008 NOCOMMON 0 0 M044200200009 DATA 3 3 M044200200010 EN DATA DATA-ERR M044200200011 MEV MB MB M044200200012 1.692 1.31 .08 M044200200013 1.720 1.22 .11 M044200200014 1.780 0.88 .06 M044200200015 ENDDATA 5 0 M044200200016 ENDSUBENT 15 0 M044200299999 ENDENTRY 2 0 M044299999999