ENTRY 20051 20190203 22742005100000001 SUBENT 20051001 20190203 22742005100100001 BIB 18 41 2005100100002 TITLE Thermal neutron activation cross-section of Se-74 2005100100003 REFERENCE (J,JNE,21,373(2),1967) 2005100100004 AUTHOR (E.Steinnes) 2005100100005 INSTITUTE (2NORKJL) 2005100100006 FACILITY (REAC,2NORKJL) JEEP I reactor, 2005100100007 In thermal column (cadmium-ratio of gold about 1.0E+4)2005100100008 In isotope channel (cadmium-ratio of gold about 2.6). 2005100100009 INC-SOURCE (THCOL) JEEP I reactor, thermal column and 2005100100010 (REAC ) isotope channel, (pile neutrons). 2005100100011 SAMPLE (34-SE-74,NAT=0.0087) About 10 millig. of elementary 2005100100012 Se or Se-O(2). 2005100100013 The sodium monitor samples were about 10 mg of Na 2005100100014 either in the form of sodium carbonate or as an 2005100100015 aqueous solution of sodium chloride. 2005100100016 METHOD (ACTIV) Activation. 2005100100017 DETECTOR (NAICR) 3.x3.in. NaI(Tl)-crystal, multichannel analyzer2005100100018 ANALYSIS Integration of the counts in the 280 keV photopeak. 2005100100019 The value given is the mean value of 3 thermal column 2005100100020 and 3 pile measurements reduced to thermal energies. 2005100100021 The calculations were based on the complex peak of 2005100100022 Se-75 at about 280 keV (265 + 280 + 305 keV), and 2005100100023 either the 1370 keV or the 2760 keV peak of Na-24. 2005100100024 Branching ratio of (265+280+305, keV) gamma-rays = 2005100100025 85% total. 2005100100026 MONITOR (11-NA-23(N,G)11-NA-24,,SIG) 2005100100027 MONIT-REF (20651002,G.Wolf,J,NUK,2,255,1961) 2005100100028 DECAY-MON (11-NA-24,15.HR,DG) 2005100100029 DECAY-DATA (34-SE-75,120.D,DG) 2005100100030 CORRECTION Correction applied for epithermal activation (when 2005100100031 pile neutrons have been used) by irradiating separate 2005100100032 samples within Cd-cover. 2005100100033 ERR-ANALYS (DATA-ERR) Standard deviation quoted. 2005100100034 The accuracy of the mean value presented is mainly 2005100100035 dependent on the accuracy of the nuclear data used 2005100100036 in the calculations. 2005100100037 STATUS (TABLE) Data from publication. 2005100100038 (APRVD) Data and comment approved by the author. 2005100100039 HISTORY (19701105T) From NEUDADA file. 2005100100040 (20190203U) SD:Updated to new date formats,lower case. 2005100100041 MONIT added. COMMENT deleted (info moved to DECAY-DATA,2005100100042 ANALYSIS). BIB updated. 2005100100043 ENDBIB 41 0 2005100100044 COMMON 2 3 2005100100045 MONIT MONIT-ERR 2005100100046 MB MB 2005100100047 531. 8. 2005100100048 ENDCOMMON 3 0 2005100100049 ENDSUBENT 48 0 2005100199999 SUBENT 20051002 20190203 22742005100200001 BIB 2 2 2005100200002 REACTION (34-SE-74(N,G)34-SE-75,,SIG,,MXW) 2005100200003 HISTORY (20190203U) SD: PART-DET deleted (redundant). 2005100200004 ENDBIB 2 0 2005100200005 NOCOMMON 0 0 2005100200006 DATA 3 1 2005100200007 EN-DUMMY DATA DATA-ERR 2005100200008 MEV B B 2005100200009 2.53E-08 51.8 1.2 2005100200010 ENDDATA 3 0 2005100200011 ENDSUBENT 10 0 2005100299999 ENDENTRY 2 0 2005199999999