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Proceedings Paper

The SPEAR science payload
Author(s): Eric J. Korpela; Jerry Edelstein; Peter Berg; Mark Shane Bowen; Raymond Chung; Michael Feuerstein; Wonyong Han; Jeffrey S. Hull; Ho Jin; Dae-hee Lee; Kyung-wook Min; Uk-won Nam; Kaori Nishikida; Jin-geun Rhee; Kwangsun Ryu; Kwangil Seon; Barry Y. Welsh; Insoo Yuk
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Paper Abstract

The SPEAR micro-satellite payload consists of dual imaging spectrographs optimized for detection of the faint, diffuse FUV (900-1750 Å) radiation emitted from interstellar gas. The instrument provides spectral resolution, R~750, and long slit imaging of <10' over a large (8°x5') field of view. We enhance the sensitivity by using shutters and filters for removal of background noise. Each spectrograph channel uses identically figured optics: a parabolic-cylinder entrance mirror and a constant-ruled ellipsoidal grating. Two microchannel plate photon-counting detectors share a single delay-line encoding system. A payload electronics system conditions data and controls the instrument. We will describe the design and predicted performance of the SPEAR instrument system and its elements.

Paper Details

Date Published: 24 February 2003
PDF: 11 pages
Proc. SPIE 4854, Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation, (24 February 2003); doi: 10.1117/12.459970
Show Author Affiliations
Eric J. Korpela, Univ. of California/Berkeley (United States)
Jerry Edelstein, Univ. of California/Berkeley (United States)
Peter Berg, Univ. of California/Berkeley (United States)
Mark Shane Bowen, Univ. of California/Berkeley (United States)
Raymond Chung, Univ. of California/Berkeley (United States)
Michael Feuerstein, Univ. of California/Berkeley (United States)
Wonyong Han, Korea Astronomy Observatory (Korea)
Jeffrey S. Hull, Univ. of California/Berkeley (United States)
Ho Jin, Korea Astronomy Observatory (Korea)
Dae-hee Lee, Korea Advanced Institute of Science and Technology (Korea)
Kyung-wook Min, Korea Advanced Institute of Science and Technology (South Korea)
Uk-won Nam, Korea Astronomy Observatory (Korea)
Kaori Nishikida, Univ. of California/Berkeley (United States)
Jin-geun Rhee, Korea Astronomy Observatory (Korea)
Kwangsun Ryu, Korea Advanced Institute of Science and Technology (Korea)
Kwangil Seon, Korea Astronomy Observatory (Korea)
Barry Y. Welsh, Univ. of California/Berkeley (United States)
Insoo Yuk, Korea Astronomical Observatory (Korea)


Published in SPIE Proceedings Vol. 4854:
Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation
J. Chris Blades; Oswald H. W. Siegmund, Editor(s)

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