Event Pileup in Charge Coupled Devices

Davis, J.E., 2001, ApJ, 562, 575

The problem of event pileup in single photon counting CCD cameras (e.g., in the X-ray regime) is discussed and a solution to the problem is proposed. The resulting pileup equation includes the effects of grade migration and presents itself as a non-linear modification to the standard integral equation used by forward-folding spectral fitting programs. The effectiveness of the model is demonstrated by its application to the moderately piled zeroth order data obtained by the Chandra X-Ray Observatory for the quasar S5 0836+7104.


This page was last updated Mar 14, 2013 by John E. Davis. To comment on it or the material presented here, send email to davis at space mit edu.
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