Method and apparatus for multielement analysis based on neutron activation, and usage

摘要

The present invention relates to a method for multielement analysis based on neutron activation, the method comprising: generating fast neutrons having an energy in the range of 10 keV to 20 MeV; Irradiating the sample 1 with neutrons; Measuring gamma rays emitted from the irradiated sample to determine at least one element of the sample, in accordance with the invention, the sample is irradiated in a non-pulse and continuous manner, and measurement is performed during irradiation In order to determine at least one element, at least the immediate gamma rays or both the immediate and delayed gamma rays are measured and evaluated, the sample is divided into individual compartments, the measurement is performed using a collimator, and the neutron flow is measured in the sample (1). Is determined in a spatially decomposed and energy-decomposed manner within the relevant compartments P1, P2, Pn. Thus, the analysis is extended, providing a flexible method. The invention also relates to the use of corresponding devices and detector devices for multielement analysis.