Abstract

A dual axis rotation irradiation system has been used in the development of a calibration method for the determination of oxygen in almost any matrix by 14-MeV neutron activation. The method allows the correction of matrix effects which arise from neutron removal and γ-self absorption, thus providing an accuracy of ± 2% for the oxygen analysis. The experimental results are interpreted on the basis of theoretically calculated mass absorption coefficients and neutron removal cross-sections.

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