ISIS: an FUV imaging spectrometer design for space-based applications

Details ISIS: an FUV imaging spectrometer design for space-based applications ISIS: an FUV imaging spectrometer design for space-based applications

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995spie.2478...35w&link_type=abstract

Proc. SPIE Vol. 2478, p. 35-42, Space Telescopes and Instruments, Pierre Y. Bely; James B. Breckinridge; Eds.

Physics

Scientific paper

We present an instrument design for imaging spectroscopy in the far ultraviolet (FUV, 912- 1250 angstrom) and the extreme ultraviolet (EUV, 100-912 angstrom). The design consists of a collimator and telescope to collected light, an aberration corrected planar holographic grating placed directly in the converging beam of the telescope, a transfer mirror, and a microchannel plate detector. The design provides spatial on the order of 10 arc seconds and is limited by telescope blur and detector resolution, not by grating-induced aberrations. The spectral resolution is approximately 1000 for point sources and greater than 30 for diffuse objects which uniformly illuminate the 10 arc minute collimator.

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