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

Erik Wilkinson; James C. Green

doi:10.1117/12.210945

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2 June 1995 ISIS: an FUV imaging spectrometer design for space-based applications

Erik Wilkinson, James C. Green

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Proceedings Volume 2478, Space Telescopes and Instruments; (1995) https://doi.org/10.1117/12.210945
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

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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Erik Wilkinson and James C. Green "ISIS: an FUV imaging spectrometer design for space-based applications", Proc. SPIE 2478, Space Telescopes and Instruments, (2 June 1995); https://doi.org/10.1117/12.210945

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