A DEMAND FOR CONSISTENCY OF NUCLEAR DATA RELATED TO REACTOR NEUTRON ACTIVATION ANALYSIS
Institute for Nuclear Sciences, Proeftuinstraat 86, B-9000 Gent, Belgium
Central Research Institute for Physics, H-1525 Budapest 114, P.O.B. 49, Hungary
A plea is made for the utmost alertness to aspects of consistency when evaluating 2200 ms-1(n,γ) cross-sections [σ0], which are (or should be) reported together with data for the isotopic abundances [θ], the absolute gamma-intensities [γ] and the half-lives [T]. Indeed, θ, γ and T serve as input (and should thus be quoted by the experimentalists) in σ0-determinations according to the activation method, upon which evaluations are largely based. In the extreme, it can be argued that the consistency of these data, and not their accuracy, is the matter of primary concern in absolutely standardized reactor neutron activation analysis, where selected literature data for σ0, θ, γ and T have to be combined.
KEYWORDS: cross section, isotopic abundance, gamma-intensity, half-life, consistency, traceability, activation, n,gamma, evaluation