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Statistical precision of high-rate spectrometry with a Wilkinson ADC

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Abstract

Nuclear counting statistics at high count rate are assessed on a γ-ray spectrometer set-up with a Wilkinson analog to digital convertor. The validity of recent theoretical formulas for the standard deviation, before and after pulse-loss compensation, is checked. The experimental counting uncertainty is well reproduced by theory. Without pulse-loss compensation (cf. real-time mode), it is dependent on the size and position of the considered region of interest in the spectrum. With pulse-loss compensation (cf. live-time correction) the relative deviation from Poisson statistics is equal for all regions of interest in the spectrum.

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Authors and Affiliations

  1. Belgian Nuclear Research Centre, SCK-CEN, Boeretang 200, B-2400, Mol, Belgium

    S. Pommé

  2. Physics Lab, Ghent University, Krijgslaan 281 (S-12), B-9000, Gent, Belgium

    J. Uyttenhove

Authors
  1. S. Pommé
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  2. J. Uyttenhove
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Pommé, S., Uyttenhove, J. Statistical precision of high-rate spectrometry with a Wilkinson ADC. Journal of Radioanalytical and Nuclear Chemistry 248, 263–266 (2001). https://doi.org/10.1023/A:1010686832397

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  • DOI: https://doi.org/10.1023/A:1010686832397

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