Performance of the Multi-Spectral Solar Telescope Array. Pt. 3. Optical characteristics of the Ritchey-Chrétien and Cassegrain telescopes.
Abstract
The Multi-Spectral Solar Telescope Array (MSSTA) is a sounding rocket borne observatory for investigations of the Sun in the soft X-ray/EUV and FUV regimes of the electromagnetic spectrum. At soft X-ray wavelengths (λλ < 100 Å), the MSSTA utilizes single reflection multilayer coated Herschelian telescopes. For selected wavelengths in the EUV (100 - 1000 Å) the MSSTA employs five doubly reflecting, multilayer coated Ritchey-Chrétien and two Cassegrain telescopes. In the FUV (λλ > 1000 Å) the MSSTA utilizes two Ritchey-Chrétien telescopes, with optics coated with thin film interference coatings. The authors describe the interferometric alignment, testing, focusing, visible light testing, and optical performance characteristics of the Ritchey-Chrétien and Cassegrain telescopes.
- Publication:
-
X-Ray/EUV Optics for Astronomy, Microscopy, Polarimetry, and Projection Lithography
- Pub Date:
- December 1991
- DOI:
- 10.1117/12.23192
- Bibcode:
- 1991SPIE.1343..189H
- Keywords:
-
- Cassegrain Optics;
- Far Ultraviolet Radiation;
- Solar Arrays;
- Solar Spectra;
- Solar X-Rays;
- Telescopes;
- Alignment;
- Electromagnetic Spectra;
- Fizeau Effect;
- Interferometry;
- Point Spread Functions;
- Rocket-Borne Instruments;
- Optics