Physics – Optics
Scientific paper
Oct 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980pasp...92..702m&link_type=abstract
Astronomical Society of the Pacific, Publications, vol. 92, Oct.-Nov. 1980, p. 702-712. Research supported by the University of
Physics
Optics
58
Cassegrain Optics, Polarimeters, Remote Control, Spectrographs, Spectrophotometers, Telescopes, Astronomical Observatories, Design Analysis, Gratings (Spectra), Optical Scanners, Raster Scanning
Scientific paper
A Cassegrain spectrograph used in conjunction with an image-tube, image-dissector scanner (ITS) is discussed with reference to its design features and operation. The spectrograph has a remote control feature, and its parameters, such as slit width, decker position, filter selection, focus, and grating selection, can be easily changed by computer command or a hard-wired control box. The discussion also includes the area scanner modification which allows raster scanning and limited picture taking. Finally, the design of a two-channel polarization analyzer is presented which allows simultaneous sky and sky-plus-star observations and faint-object polarimetry.
Miller Jeffrey S.
Robinson Lloyd B.
Schmidt Gary D.
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