CCD radiation damage in ESA Cosmic Visions missions: assessment and mitigation

David H. Lumb

doi:10.1117/12.825284

26 August 2009 CCD radiation damage in ESA Cosmic Visions missions: assessment and mitigation

David H. Lumb

Proceedings Volume 7439, Astronomical and Space Optical Systems; 743904 (2009) https://doi.org/10.1117/12.825284
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

Charge Coupled Device (CCD) imagers have been widely used in space-borne astronomical instruments. A frequent concern has been the radiation damage effects on the CCD charge transfer properties. We review some methods for assessing the Charge Transfer Inefficiency (CTI) in CCDs. Techniques to minimise degradation using background charge injection and p-channel CCD architectures are discussed. A critical review of the claims for p-channel architectures is presented. The performance advantage for p-channel CCD performance is shown to be lower than claimed previously. Finally we present some projections for the performance in the context of some future ESA missions.

Citation Download Citation

David H. Lumb "CCD radiation damage in ESA Cosmic Visions missions: assessment and mitigation", Proc. SPIE 7439, Astronomical and Space Optical Systems, 743904 (26 August 2009); https://doi.org/10.1117/12.825284

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