ENTRY M0304 20160224 M082M030400000001 SUBENT M0304001 20160224 M082M030400100001 BIB 15 34 M030400100002 TITLE Energy spectrum of photoneutrons from cobalt. M030400100003 AUTHOR (V.Emma,C.Milone,A.Rubbino,S.Jannelli,F.Mezzanares) M030400100004 INSTITUTE (2ITYCAT,2ITYMES) M030400100005 REFERENCE (J,NC,22,(1),135,1961) M030400100006 FACILITY (BETAT,2ITYTUR) M030400100007 INC-SOURCE (BRST) M030400100008 SAMPLE A 68.5 g cobalt target. M030400100009 METHOD (REC) M030400100010 PART-DET (P) M030400100011 DETECTOR (PLATE) 400 mu thick Ilford L-4 emulsion. A foil of M030400100012 lead screened the plates against the low energy M030400100013 photons. M030400100014 CORRECTION The correction factor is 1/(p1*p2*p3*sigma), where p1 M030400100015 = probability that a neutron does not collide in the M030400100016 Co target, p2 = probability that a neutron does not M030400100017 collide in the lead screen, p3 = probability that a M030400100018 proton track ends in the emulsion, sigma = cross M030400100019 section for the neutron-proton collision. M030400100020 ERR-ANALYS (ERR-S) Statistical errors are presented. M030400100021 ADD-RES (THEO,COMP) The evaporation theory was used to fit M030400100022 the experimental spectrum and to calculate the M030400100023 evaporation spectra due to the (gamma,2n) process. M030400100024 REL-REF (N,M0310001,G.Cortini+,J,NC,9,85,1958) M030400100025 (N,,S.Cavallaro+,J,NC,9,736,1958) M030400100026 (N,M0312001,V.Emma+,J,NC,17,365,1960) M030400100027 (N,M0307001,C.Milone+,J,NC,13,1035,1959) M030400100028 Description of the conventional method used to analyze M030400100029 the proton recoil tracks. M030400100030 HISTORY (19881227C) Data were compiled at SCJAD of Saratov M030400100031 State University. M030400100032 (19910202A) Corrected by V.Varlamov, V.Mclane. M030400100033 (20160224A) Corrected by SD and VV: dates, REACTION, M030400100034 STATUS, lowercase, SUBENT 003 deleted because no M030400100035 data for EXFOR. M030400100036 ENDBIB 34 0 M030400100037 COMMON 2 3 M030400100038 EN-MAX ANG M030400100039 MEV ADEG M030400100040 30.0 90.0 M030400100041 ENDCOMMON 3 0 M030400100042 ENDSUBENT 41 0 M030400199999 SUBENT M0304002 20160224 M082M030400200001 BIB 4 8 M030400200002 REACTION (27-CO-59(G,X)0-NN-1,,DA/DE,,BRA/REL) M030400200003 COMMENT The fractional contribution of neutrons emitted by M030400200004 other process than the evaporation is 0.5 for E > 2 M030400200005 MeV. M030400200006 STATUS (CURVE) Fig.3 from NC,22,(1),135,1961. M030400200007 HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M030400200008 BRA, STATUS, SUBENT 003 deleted because the source M030400200009 of the numerical data ubknown. M030400200010 ENDBIB 8 0 M030400200011 NOCOMMON 0 0 M030400200012 DATA 4 19 M030400200013 E E-ERR DATA ERR-S M030400200014 MEV MEV ARB-UNITS ARB-UNITS M030400200015 1.75 0.25 1.776 0.070 M030400200016 2.25 0.25 1.338 0.068 M030400200017 2.75 0.25 1.124 0.058 M030400200018 3.25 0.25 0.736 0.054 M030400200019 3.75 0.25 0.436 0.048 M030400200020 4.25 0.25 0.550 0.044 M030400200021 4.75 0.25 0.532 0.046 M030400200022 5.25 0.25 0.478 0.051 M030400200023 5.75 0.25 0.360 0.039 M030400200024 6.25 0.25 0.276 0.040 M030400200025 6.75 0.25 0.180 0.028 M030400200026 7.25 0.25 0.124 0.027 M030400200027 7.75 0.25 0.096 0.023 M030400200028 8.25 0.25 0.126 0.026 M030400200029 8.75 0.25 0.128 0.024 M030400200030 9.25 0.25 0.050 0.016 M030400200031 9.75 0.25 0.040 0.014 M030400200032 10.50 0.50 0.018 0.006 M030400200033 11.50 0.50 0.018 0.006 M030400200034 ENDDATA 21 0 M030400200035 ENDSUBENT 34 0 M030400299999 NOSUBENT M0304003 20160224 M082M030400300001 ENDENTRY 3 0 M030499999999