Abstract
In the detector development laboratory of the University of California Observatories, Lick Observatory, we have set up a very simple but effective system for measuring CCD flatness. In the very large spectrographs being built for the Keck II telescope, as well as in many other instruments, the cameras are between f/1 and f/2. These high speeds make it imperative that our detector deviate from flatness by no more than about 10 micrometers. The figure shows, in a very schematic way, the system we are using.
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© 1998 Springer Science+Business Media Dordrecht
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Stover, R.J., Wei, M., Li, Y. (1998). CCD Flatness Measuring System at UCO/Lick Observatory. In: Beletic, J.W., Amico, P. (eds) Optical Detectors for Astronomy. Astrophysics and Space Science Library, vol 228. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5262-4_42
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DOI: https://doi.org/10.1007/978-94-011-5262-4_42
Publisher Name: Springer, Dordrecht
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