A software method for suppressing statistical fluctuations in preset count digital-rate meter algorithms
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A method for suppression of statistical fluctuations of the mean count rate measurements based on limiting the time difference between two adjacent input pulses to a pre-assigned range, has been incorporated in the preset count digital-rate meter algorithm. The algorithm allows measurement of mean count rates with considerably lower levels of statistical fluctuations of the measurement results and significantly lower values of the preset count compared to the traditional algorithm. The exact relation between the lower and upper limits of the difference between two adjacent pulses has been derived. The lower limit of the preset count applicable to the algorithm has been identified. The response time of the algorithm to a sudden change of count rate has been determined.