The ESA project for a Grazing Incidence Solar Telescope (GRIST)

✍ Scribed by Martin C. E. Huber

• Publisher: Springer
• Year: 1981
• Tongue: English
• Weight: 217 KB
• Volume: 74
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00154537

✦ Synopsis

The Grazing Incidence Solar Telescope (GRIST) as it is being studied by the European Space Agency (ESA) is describdd: A soft X-ray and extreme-ultraviolet (XUV) facility for solar observations with 1 arc sec spatial resolution in a wavelength range extending from 9 to beyond 100 nm. The telescope, a 35 ~ sector of a Wolter, type-II, configuration, will have a, focal length of 4 m and a collection area of 280 cm z.

It is planned that GRIST be flown on joint Spacelab flights with the Solar Optical Telescope (SOT), a NASA facility for the wavelength range, 110 nm to 1 p~m, which affords a 0.1 arc sec spatial resolution. This would render possible synoptic observations of the solar atmosphere with the highest ever achieved spatial resolution at wavelengths between 9 nm and 1 ~m.

Possible focal-plane instruments and the most important research goals are briefly described.

* Proceedings of the 14th ESLAB Symposium on Physics of Solar Variations, 16-