ENTRY 30903 20090912 31413090300000001 SUBENT 30903001 20090912 31413090300100001 BIB 13 32 3090300100002 TITLE Experimental measurement of the ratio of the reaction 3090300100003 cross section (n,2n) for the natural mixtures of lead 3090300100004 and iron isotopes with 14 MeV neutrons by the method of3090300100005 moderated neutron-neutron coincidences 3090300100006 AUTHOR (Ts.Ts.Panteleev,O.I.Penchev,A.I.Trifonov,T.M.Troshev, 3090300100007 V.I.Christov) 3090300100008 INSTITUTE (3BULBLA) 3090300100009 REFERENCE (R,INDC(BUL)-10,198601) 3090300100010 SAMPLE Fe and Pb samples in natural isotopix 3090300100011 mixtures. The sample diameter was 22 mm. 3090300100012 MONITOR The monitoring of neutron beam was done by a screened 3090300100013 Si-Au detector with active surface limited to 0.8 mm2. 3090300100014 The monitoring was also carried out by one-channel 3090300100015 analyzer in whose window was the alpha-peak. 3090300100016 Continous measurements of the alpha particles have 3090300100017 been arried out for controlling the target state. 3090300100018 FACILITY (CCW,3BULBLA) Neutron generator of 140 keV, type 3090300100019 SAMES-150D. 3090300100020 INC-SOURCE (D-T) Ti-T target 3090300100021 METHOD (COINC) The method is based on the principle of 3090300100022 moderated neutron-neutron coincidences. 3090300100023 DETECTOR (COIN,PROPC) Twelve neutron detectors of CHM-17 type 3090300100024 working in coincidence. 3090300100025 ERR-ANALYS (DATA-ERR) The errors are determined by: 3090300100026 * the sum of the statistical errors of the number of 3090300100027 registered double coincidences and 3090300100028 * the error from calculating the number of incident 3090300100029 coincidences. For more detailed explanation of 3090300100030 error analysis see INDC(BUL)-10 report 3090300100031 STATUS (TABLE) Data taken from INDC(BUL)-010,8601 3090300100032 HISTORY (19880725C) VOF 3090300100033 (20090912A) SD:Updated to new date formats,lower case. 3090300100034 ENDBIB 32 0 3090300100035 COMMON 1 3 3090300100036 EN 3090300100037 MEV 3090300100038 14.0 3090300100039 ENDCOMMON 3 0 3090300100040 ENDSUBENT 39 0 3090300199999 SUBENT 30903002 20090912 31413090300200001 BIB 1 1 3090300200002 REACTION ((82-PB-0(N,2N),,SIG)/(26-FE-0(N,2N),,SIG)) 3090300200003 ENDBIB 1 0 3090300200004 NOCOMMON 0 0 3090300200005 DATA 2 1 3090300200006 DATA DATA-ERR 3090300200007 NO-DIM NO-DIM 3090300200008 4.23 0.74 3090300200009 ENDDATA 3 0 3090300200010 ENDSUBENT 9 0 3090300299999 ENDENTRY 2 0 3090399999999