ENTRY M0302 20160224 M082M030200000001 SUBENT M0302001 20160224 M082M030200100001 BIB 17 46 M030200100002 TITLE Photoneutrons from K and Ca. M030200100003 AUTHOR (V.Emma,C.Milone,R.Rinzivillo) M030200100004 INSTITUTE (2ITYCAT) M030200100005 REFERENCE (J,NC,14,(5),1149,1959) M030200100006 FACILITY (BETAT,2ITYTUR) M030200100007 INC-SOURCE (BRST) M030200100008 INC-SPECT The diameter of the gamma beam at the place of the M030200100009 targets was 35 mm. The doses of gamma-irradiation M030200100010 were 3690 roentgen for Ca and 6027 roentgen for K. M030200100011 SAMPLE A cylinder of natural Ca (hight = 20 mm, diameter = M030200100012 29 mm, weght = 19 g) and a spherical target of M030200100013 natural K (diameter = 30 mm, weght = 12 g). M030200100014 METHOD (REC) M030200100015 PART-DET (P) M030200100016 DETECTOR (PLATE) Ilford L4 emulsion (thickness = 400 mu, area M030200100017 = 1 x 3 inches). The nuclear plates were screened by M030200100018 3 mm thick Pb foils against the low energy photons M030200100019 diffused by the target. M030200100020 CORRECTION A) for the probability of escape of recoil proton M030200100021 tracks from the emulsion, M030200100022 B) for the neutron absorption in the target, in the M030200100023 window of the vessel containing the K target and in M030200100024 Pb foils. M030200100025 ERR-ANALYS (ERR-S) Statistical errors are presented. M030200100026 ADD-RES (COMP) The evaporation theory was used. The fraction M030200100027 of neutrons exceeding the theoretical values at high M030200100028 neutron energies is reported. M030200100029 COMMENT The spectra show that at least 50% of the neutrons M030200100030 above 2 MeV are due to direct process. For Ca and M030200100031 also for K a second resonance seems to exist about M030200100032 10 MeV above the threshold. At 31 MeV photoneutron M030200100033 yields for Ca and K at angle = 90 degrees for E > 2 M030200100034 MeV are about the same. M030200100035 REL-REF (M,M0310001,G.Cortini+,J,NC,9,85,1958) Description M030200100036 of method by means of which the plates were scanned M030200100037 and the proton recoil tracks were analysed. M030200100038 (O,M0356001,A.Agodi+,C,58PARIS,625,1958) The first M030200100039 results on the energy spectrum of photoneutrons of M030200100040 Ca. M030200100041 (M,M0289001,G.Cortini+,J,NC,14,54,1959). Description M030200100042 of the method of theoretical calculations. M030200100043 HISTORY (19881227C) Data were compiled at SCJAD of Saratov M030200100044 State University. M030200100045 (19910202A) Corrected by V.Varlamov, V.Mclane. M030200100046 (20160224A) Corrected by SD and VV: dates, STATUS, M030200100047 REACTION, lowercase. M030200100048 ENDBIB 46 0 M030200100049 COMMON 1 3 M030200100050 EN-MAX M030200100051 MEV M030200100052 31.0 M030200100053 ENDCOMMON 3 0 M030200100054 ENDSUBENT 53 0 M030200199999 SUBENT M0302002 20160224 M082M030200200001 BIB 3 4 M030200200002 REACTION (20-CA-0(G,X)0-NN-1,,DA/DE,,BRA/REL) M030200200003 STATUS (CURVE) Fig.3 from NC,14,(5),1149,1959. M030200200004 HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M030200200005 BRA, STATUS. M030200200006 ENDBIB 4 0 M030200200007 COMMON 1 3 M030200200008 ANG M030200200009 ADEG M030200200010 90.0 M030200200011 ENDCOMMON 3 0 M030200200012 DATA 4 21 M030200200013 E E-ERR DATA ERR-S M030200200014 MEV MEV ARB-UNITS ARB-UNITS M030200200015 1.75 0.25 35.4 2.7 M030200200016 2.25 0.25 34.8 2.7 M030200200017 2.75 0.25 26.4 2.5 M030200200018 3.25 0.25 33.8 2.6 M030200200019 3.75 0.25 27.9 2.5 M030200200020 4.25 0.25 24.8 2.5 M030200200021 4.75 0.25 17.3 1.5 M030200200022 5.25 0.25 14.1 1.4 M030200200023 5.75 0.25 11.5 1.3 M030200200024 6.25 0.25 10.5 1.4 M030200200025 6.75 0.25 7.0 1.2 M030200200026 7.25 0.25 4.9 0.8 M030200200027 7.75 0.25 6.5 1.2 M030200200028 8.25 0.25 6.7 1.2 M030200200029 8.75 0.25 5.5 1.1 M030200200030 9.25 0.25 5.7 1.4 M030200200031 9.75 0.25 7.4 1.9 M030200200032 10.50 0.50 3.0 1.4 M030200200033 11.50 0.50 1.1 0.9 M030200200034 12.50 0.50 0.9 0.9 M030200200035 13.50 0.50 1.3 0.8 M030200200036 ENDDATA 23 0 M030200200037 ENDSUBENT 36 0 M030200299999 SUBENT M0302003 20160224 M082M030200300001 BIB 3 4 M030200300002 REACTION (19-K-0(G,X)0-NN-1,,DA/DE,,BRA/REL) M030200300003 STATUS (CURVE) Fig.4 from NC,14,(5),1149,1959. M030200300004 HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M030200300005 BRA, STATUS. M030200300006 ENDBIB 4 0 M030200300007 COMMON 1 3 M030200300008 ANG M030200300009 ADEG M030200300010 90.0 M030200300011 ENDCOMMON 3 0 M030200300012 DATA 4 21 M030200300013 E E-ERR DATA ERR-S M030200300014 MEV MEV ARB-UNITS ARB-UNITS M030200300015 1.75 0.25 28.3 2.5 M030200300016 2.25 0.25 32.7 3.1 M030200300017 2.75 0.25 29.4 2.9 M030200300018 3.25 0.25 21.7 2.8 M030200300019 3.75 0.25 26.1 3.0 M030200300020 4.25 0.25 22.9 3.3 M030200300021 4.75 0.25 18.9 3.0 M030200300022 5.25 0.25 14.9 2.0 M030200300023 5.75 0.25 15.5 2.0 M030200300024 6.25 0.25 8.6 1.5 M030200300025 6.75 0.25 8.0 1.5 M030200300026 7.25 0.25 11.4 1.7 M030200300027 7.75 0.25 7.0 1.4 M030200300028 8.25 0.25 5.1 1.5 M030200300029 8.75 0.25 2.5 1.1 M030200300030 9.25 0.25 3.3 1.2 M030200300031 9.75 0.25 4.3 1.4 M030200300032 10.50 0.50 2.9 0.9 M030200300033 11.50 0.50 1.2 0.7 M030200300034 12.50 0.50 0.8 0.8 M030200300035 13.50 0.50 0.5 0.6 M030200300036 ENDDATA 23 0 M030200300037 ENDSUBENT 36 0 M030200399999 SUBENT M0302004 20160224 M082M030200400001 BIB 3 4 M030200400002 REACTION (19-K-0(G,X)0-NN-1,,DA/DE,,BRA/REL) M030200400003 STATUS (CURVE) Fig.5 from NC,14,(5),1149,1959. M030200400004 HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M030200400005 BRA, STATUS. M030200400006 ENDBIB 4 0 M030200400007 COMMON 1 3 M030200400008 ANG M030200400009 ADEG M030200400010 60.0 M030200400011 ENDCOMMON 3 0 M030200400012 DATA 4 10 M030200400013 E E-ERR DATA ERR-S M030200400014 MEV MEV ARB-UNITS ARB-UNITS M030200400015 2.5 0.5 30.7 3.7 M030200400016 3.5 0.5 23.8 3.5 M030200400017 4.5 0.5 20.5 3.5 M030200400018 5.5 0.5 18.1 3.5 M030200400019 6.5 0.5 12.0 2.9 M030200400020 7.5 0.5 9.7 2.7 M030200400021 8.5 0.5 8.5 2.7 M030200400022 9.5 0.5 2.3 1.2 M030200400023 11.0 1.0 2.5 0.8 M030200400024 13.0 1.0 1.5 0.7 M030200400025 ENDDATA 12 0 M030200400026 ENDSUBENT 25 0 M030200499999 SUBENT M0302005 20160224 M082M030200500001 BIB 3 4 M030200500002 REACTION (19-K-0(G,X)0-NN-1,,DA/DE,,BRA/REL) M030200500003 STATUS (CURVE) Fig.6 from NC,14,(5),1149,1959. M030200500004 HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M030200500005 BRA, STATUS. M030200500006 ENDBIB 4 0 M030200500007 COMMON 1 3 M030200500008 ANG M030200500009 ADEG M030200500010 120.0 M030200500011 ENDCOMMON 3 0 M030200500012 DATA 4 10 M030200500013 E E-ERR DATA ERR-S M030200500014 MEV MEV ARB-UNITS ARB-UNITS M030200500015 2.5 0.5 29.6 4.4 M030200500016 3.5 0.5 29.4 4.8 M030200500017 4.5 0.5 19.7 4.3 M030200500018 5.5 0.5 15.0 4.0 M030200500019 6.5 0.5 7.6 2.5 M030200500020 7.5 0.5 7.1 3.2 M030200500021 8.5 0.5 5.1 3.0 M030200500022 9.5 0.5 7.2 3.8 M030200500023 11.0 1.0 3.1 1.3 M030200500024 13.0 1.0 2.7 1.3 M030200500025 ENDDATA 12 0 M030200500026 ENDSUBENT 25 0 M030200599999 ENDENTRY 5 0 M030299999999