Event Pileup in Charge-coupled Devices

Details Event Pileup in Charge-coupled Devices Event Pileup in Charge-coupled Devices

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001apj...562..575d&link_type=abstract

The Astrophysical Journal, Volume 562, Issue 1, pp. 575-582.

Astronomy and Astrophysics

Astronomy

162

Instrumentation: Detectors, Methods: Analytical, Methods: Data Analysis, X-Rays: General

Scientific paper

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 nonlinear 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.

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