The SPEAR science payload

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

doi:10.1117/12.459970

24 February 2003 The SPEAR science payload

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

Author Affiliations +

Proceedings Volume 4854, Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation; (2003) https://doi.org/10.1117/12.459970
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

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.

Citation Download Citation

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, and Insoo Yuk "The SPEAR science payload", Proc. SPIE 4854, Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation, (24 February 2003); https://doi.org/10.1117/12.459970

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