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  • 1 Central Research Institute for Physics P.O. Box 49 H-1525 Budapest 114 Hungary
  • | 2 State University Institute for Nuclear Sciences Proeftuinstraat 86 B-9000 Gent Belgium
  • | 3 Univ. V. Vlahović Institute for Mathematics and Physics Cetinjski put bb Yu-8100 Titograd Yugoslavia
  • | 4 Belgium
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Abstract  

When making use of some single comparator or absolute standardization methods in reactor neutron and in epicadmium neutron activation analysis, the knowledge of the effective resonance energy (
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) is essential to correct for the effect of the nonideal epithermal flux distribution on the analysis result.
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can be calculated from neutron resonance data, but when these are incomplete, not accurate or even not known at all, experimental determination should be considered. Such a method, providing both
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and the resonance integral to 2200 ms–1 cross-section ratio (QO), is described in this paper. Results are given for 11 isotopes.