Modeling the effects of proton damage to CCDs on astrometric measurement precision

Details Modeling the effects of proton damage to CCDs on astrometric measurement precision Modeling the effects of proton damage to CCDs on astrometric measurement precision

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004spie.5167..302d&link_type=abstract

Focal Plane Arrays for Space Telescopes. Edited by Grycewicz, Thomas J.; McCreight, Craig R. Proceedings of the SPIE, Volume 51

Computer Science

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Scientific paper

High accuracy space astrometry missions such as the recently proposed AMEX will observe tens of millions of stars with mission measurement accuracies of less than 150 microarcseconds at mv = 9. In order to achieve this level of accuracy and coverage, focal planes containing tens of CCDs are necessary. These CCDs are exposed to damage from charged particles from Earth's radiation belts and solar wind. We have developed a computer simulation in order to estimate the effects of charged particle damage on the single measurement precision of an astrometric instrument in space. We describe the simulation in detail, and provide an example of its use in predicting the measurement performance of the AMEX instrument.

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