Event Pileup in Charge-coupled Devices
نویسنده
چکیده
The problem of event pileup in single-photonÈcounting 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 e†ects of grade migration and presents itself as a nonlinear modiÐcation to the standard integral equation used by forward-folding spectral-Ðtting programs. The e†ectiveness 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. Subject headings : instrumentation : detectors È methods : analytical È methods : data analysis È X-rays : general
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