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Paper: |
Status of USNO Testing of CCDs for Space Astrometry Missions |
Volume: |
338, Astrometry in the Age of the Next Generation of Large Telescopes |
Page: |
355 |
Authors: |
Dorland, B.N.; Johnson, S.; Waczynski, A. |
Abstract: |
We report on the laboratory testing of two candidate CCDs for space astrometry missions: the STA700 and e2v CCD43 models. We measured noise, dark current and charge transfer inefficiency for both CCDs after high energy proton irradiation at a level equivalent to five years on-orbit for HST, and assessed how effective the radiation damage mitigation capabilities were for each detector. Neither detector fully meets AMEX-level requirements for high-speed, low-noise, radiation hard performance. We discuss future work that should result in development of CCDs that will meet requirements for space astrometry. |
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