DEIMOS dewar and CCD mosaic

Details DEIMOS dewar and CCD mosaic DEIMOS dewar and CCD mosaic

Jul 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3355..175c&link_type=abstract

Proc. SPIE Vol. 3355, p. 175-186, Optical Astronomical Instrumentation, Sandro D'Odorico; Ed.

Astronomy and Astrophysics

Astronomy

1

Scientific paper

The DEIMOS spectrograph, being designed and built by Lick Observatory, for the Keck-II telescope, requires a dewar system that can support a mosaic of eight 2K X 8K science CCDs and two 600 X 1200 CCDs for flexure control. The science CCD must be mounted on the mosaic backplane with a height difference of less than 10 (mu) . Inside the dewar the mosaic must translate in the focus direction plus or minus 1 millimeter and in the direction of the slit by 90 (mu) for flexure control. This system has now completed the design stage, with many of the subsystems having been prototyped, and is now in the later part of the fabrication stage.

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