The ESA project for a Grazing Incidence Solar Telescope /GRIST/

Details The ESA project for a Grazing Incidence Solar Telescope /GRIST/ The ESA project for a Grazing Incidence Solar Telescope /GRIST/

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981soph...74..539h&link_type=abstract

(ESA and European Physical Society, ESLAB Symposium on Physics for Solar Variations, 14th, Scheveningen, Netherlands, Sept. 16-1

Physics

2

European Space Agency, Grist (Telescope), Solar Atmosphere, Solar Instruments, Structural Design, Coronal Holes, Focal Plane Devices, Solar Wind, Spacelab Payloads, Spatial Resolution, Spectral Sensitivity

Scientific paper

Possible focal plane instruments and design and research goals of the Grazing Incidence Solar Telescope (GRIST) are reviewed. GRIST will have one-arcsec spatial resolution and a spectral range from 9 nm to 100 nm, and, when combined with the NASA Solar Optical Telescope on board Spacelab, will provide a high spatial resolution in wavelengths from 9 nm to one micron. GRIST is designed to image XUV wavelengths over a 5 x 5 sq arcmin field of view, with a grazing incidence from 8.6 to 13 deg in a throughput of 0.5 with two telescope mirrors. The focal length is chosen as 4.12 m, and the use of two mirrors gives an overall length of 2.5 m. The focal plane instruments will include both grazing incidence and normal incidence spectrographs and cameras with filters and polarimetric devices. GRIST is intended for study of the magnetic loops which form the basic structures of the outer solar atmosphere and the processes which heat the upper solar atmosphere and form the origins of the solar wind.

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