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Proceedings Paper

Design of the two-dimensional spectrograph
Author(s): Guofeng Song; Guoxiang Ai
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Paper Abstract

The principles ofTwo.Dimensional Spectrograph (TDS) fbr the Space Solar Telescope (SST) arc described in this article. The TDS will be the main focus plane instrument of thc payload of SSL It is a kind of birefringent filtcr with polaroids replaced by polarizing beam spliLter. It permits observations of solar. vector magnetic field or lincof-sight velocity fields in any Fraunhofcr line in the wavelength region from 3900 in 6600 angstrom with half width horn 0.03 to 0.12 angstrom. Lt can be turned across the spectral line to obtain linc profiles ofiwo-dirnensional field of view in one channel and also van be turned on one spectral line to obtain partofthe line profiles of two-dimensional field of view with 8 channels. This article also describes the analysis of mechanicul and thermal control of the TDS. In the finale, a new polarimeter of this system is introduced.

Paper Details

Date Published: 19 July 1999
PDF: 1 pages
Proc. SPIE 3749, 18th Congress of the International Commission for Optics, (19 July 1999); doi: 10.1117/12.355001
Show Author Affiliations
Guofeng Song, Beijing Astronomical Observatory (China)
Guoxiang Ai, Beijing Astronomical Observatory (China)


Published in SPIE Proceedings Vol. 3749:
18th Congress of the International Commission for Optics
Alexander J. Glass; Joseph W. Goodman; Milton Chang; Arthur H. Guenther; Toshimitsu Asakura, Editor(s)

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