Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986spie..627..167h&link_type=abstract
IN: Instrumentation in astronomy VI; Proceedings of the Meeting, Tucson, AZ, Mar. 4-8, 1986. Part 1 (A87-36376 15-35). Bellingha
Astronomy and Astrophysics
Astronomy
Astronomical Photography, Cameras, Charge Coupled Devices, Electrophotometry, Photocathodes, Component Reliability, Evaluation, Fabrication, Improvement, Life (Durability)
Scientific paper
An account is given of the electrographic Mark II camera's most recent design improvements and their performance gains. These improvements encompass better baking; a new o-ring preparation that employs high vacuum baking, aluminization, and oxidation; and a novel rough pumping system that eliminates waiting for pumpdown, and reduces damage risks due to leaks and user error. Projects to be undertaken with this camera, whose photocathode times are now very long, are the construction of a motorized tracking guider, the addition of a focal reducer for a 2.1-m telescope, and the production of K2CsSb(O) photocathodes to increase sensitivity and spectral range.
Griboval P. J.
Holm J. M.
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