Optimal Countrates for Deadtime Corrections

Walko, D A; Arms, D A; Dufresne, E M; Landahl, E C

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DOE OSTI · 1009073

Optimal Countrates for Deadtime Corrections

Walko, D A·Arms, D A·Dufresne, E M·Landahl, E C

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Abstract

The high x-ray flux available at synchrotron radiation sources can cause nonlinearities in photon-counting detectors unless deadtime corrections are employed. We compute the uncertainties associated with several common deadtime-correction formulas. At lower countrates, statistical noise dominates the error in the measured countrates; at higher countrates, the dominating factors are saturation of the response and uncertainty in the value of the deadtime parameter. In between, a range of countrates exists in which the signal-to-noise ratio can be optimized for photon-counting experiments.

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43 PARTICLE ACCELERATORS SATURATION SIGNAL-TO-NOISE RATIO SYNCHROTRON RADIATION SYNCHROTRON RADIATION SOURCES

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BibTeX RIS

Walko, D A, Arms, D A, Dufresne, E M, Landahl, E C. 2010-08-02. Optimal Countrates for Deadtime Corrections. https://www.osti.gov/biblio/1009073

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