Grazing-incidence imaging spectrograph for solar observations in the XUV domain

Fabio Frassetto; Stefano Coraggia; Paolo Miotti; Luca Poletto

doi:10.1117/12.924810

17 September 2012 Grazing-incidence imaging spectrograph for solar observations in the XUV domain

Fabio Frassetto, Stefano Coraggia, Paolo Miotti, Luca Poletto

Proceedings Volume 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray; 84433V (2012) https://doi.org/10.1117/12.924810
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

Abstract

The design of an imaging spectrograph operating at grazing incidence and stigmatic in a large field-of-view is presented. It is realized coupling a double telescope and a spectrometer. The instrument may be used for XUV space observations of extended sources, and is particularized to the Sun observation from the Earth. The performances of a laboratory prototype are presented. This instrument covers the 4-20 nm (310-62 eV) spectral region, with a spectral resolution of 0.1% at 10 nm and a spatial resolution of 3.5 arcsec over a field-of-view of 0.5 deg, within a total envelope of 1.2 m. The design and the characterization of the instrument in the whole spectral region of operation are presented.

Citation Download Citation

Fabio Frassetto, Stefano Coraggia, Paolo Miotti, and Luca Poletto "Grazing-incidence imaging spectrograph for solar observations in the XUV domain", Proc. SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, 84433V (17 September 2012); https://doi.org/10.1117/12.924810

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