Pages: 40 - 44

Authors: Aleksandar D. ŽIGIĆ

Abstract

Experimental verifications of two optimized adaptive digital signal processing algorithms implemented in two preset time count rate meters were performed according to appropriate standards. The random pulse generator, realized using a personal computer, was used as an artificial radiation source for preliminary system tests and performance evaluations of the proposed algorithms. Then measurement results for background radiation levels were obtained. Finally, measurements with a natural radiation source, radioisotope 90Sr-90Y, were carried out. Measurement results, conducted without and with radioisotopes for the specified errors of 10% and 5%, showed to agree well with theoretical predictions.

Key words: experimental verification, rate meter, adaptive signal processing, FIR filter, mean count rate

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