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22 October 1999 Determination and correction of the charge transfer efficiency of the pn-CCD camera
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Abstract
In CCDs part of the charge released by an absorbed photon is lost during transfer to the readout node. This loss depends on several parameters, in particular on the position where the photon was detected, its energy, the temperature of the CCD, and the saturation of traps by charges preceding along the readout direction. In order to determine how these parameters affect the charge loss of the pn-CCD cameras, we obtained extensive sets of calibration measurements form February 1998 to January 1999. More than three billion events were recorded in flatfield exposures. We present results of a detailed analysis of this data set and describe how they can be used to correct pn-CCD camera data for charge transfer loss.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Konrad Dennerl, Ulrich G. Briel, Frank Haberl, Gisela D. Hartner, Norbert Krause, Martin Popp, and V. E. Zavlin "Determination and correction of the charge transfer efficiency of the pn-CCD camera", Proc. SPIE 3765, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy X, (22 October 1999); https://doi.org/10.1117/12.366505
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