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Proceedings Paper

LEMUR (Large European Module for solar Ultraviolet Research): a VUV imaging spectrograph for the JAXA Solar-C Mission
Author(s): Clarence M. Korendyke; Luca Teriaca; George A. Doschek; Louise K. Harra; Udo H. Schühle; Toshifumi Shimizu
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Paper Abstract

LEMUR is a VUV imaging spectrograph with 0.28" resolution. Incident solar radiation is imaged onto the spectrograph slit by a single mirror telescope consisting of a 30-cm steerable f/12 off-axis paraboloid mirror. The spectrograph slit is imaged and dispersed by a highly corrected grating that focuses the solar spectrum over the detectors. The mirror is coated with a suitable multilayer with B4C top-coating providing a reflectance peak around 18.5 nm besides the usual B4C range above 500Å. The grating is formed by two halves, one optimized for performances around 185Å and the other above 500Å. Three intensified CCD cameras will record spectra above 50 nm while a large format CCD array with an aluminum filter will be used around 185Å.

Paper Details

Date Published: 6 October 2011
PDF: 13 pages
Proc. SPIE 8148, Solar Physics and Space Weather Instrumentation IV, 81480I (6 October 2011); doi: 10.1117/12.893622
Show Author Affiliations
Clarence M. Korendyke, U.S. Naval Research Lab. (United States)
Luca Teriaca, Max-Planck-Institut für Sonnensystemforschung (Germany)
George A. Doschek, U.S. Naval Research Lab. (United States)
Louise K. Harra, Univ. College London (United Kingdom)
Udo H. Schühle, Max-Planck-Institut für Sonnensystemforschung (Germany)
Toshifumi Shimizu, Japan Aerospace Exploration Agency (Japan)

Published in SPIE Proceedings Vol. 8148:
Solar Physics and Space Weather Instrumentation IV
Silvano Fineschi; Judy Fennelly, Editor(s)

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