Abstract
A new technique to calculate coincidence-summing corrections in γ-ray spectroscopy developed by Semkow et al. [Nucl. Instr. and Meth. A290 (1990) 437] was extended to incorporate coincidence-summing effects due to X-rays. The technique was experimentally validated in the case of 139Ce measurement. It is shown how the technique can be applied for the calculation of the full-energy peak and of total detection efficiencies. In addition, an absolute method for measuring the activity of a point source is proposed and demonstrated in the case of 139Ce. Finally it is shown how this improved technique can be applied to assess the ratios of the probabilities for emission of X-rays and for parameter optimization in peak-evaluating procedures.
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