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Proceedings Paper

Filter wheel cameras for the NGST
Author(s): Winfried Posselt; Oliver LeFevre; Gillian S. Wright; Pierre-Olivier Lagage; Koos W. Cornelisse; Peter Jakobsen
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Paper Abstract

A near and a mid infrared imaging camera for the NGST are presented, which were studied under ESA contract. Imaging in the 1 to 5 microns domain, possibly extended to 0.6 microns is a strong requirement for the core programs identified for NGST. Our compact near-IR camera design emphasizes simplicity with a single optical train covering a field 6 X 3 arcmin2 with a fixed spatial sampling of 0.03 arcsec/pixel on a 12 k X 6 k detector array. Three filter wheels allow for broad band and narrow band imaging. A mid- IR camera on NGST will be capable of carrying out aspects of many programs in the DRM. In addition to mid-IR is relatively unexplored at the spatial resolution and sensitivity NGST will be capable of, and so there is great potential for serendipitous science. A compact mid-IR camera design is presented covering a field 2.5 X 2.5 arcmin2 in the spectral range from 5 - 28 micrometers with two optical channels and a critical spatial sampling of 0.075 arcsec at 5 micrometers and 0.15 arcsec at 10 micrometers wavelengths.

Paper Details

Date Published: 28 July 2000
PDF: 13 pages
Proc. SPIE 4013, UV, Optical, and IR Space Telescopes and Instruments, (28 July 2000); doi: 10.1117/12.394051
Show Author Affiliations
Winfried Posselt, Dornier Satellitensysteme GmbH (Germany)
Oliver LeFevre, Lab d'Astronomie Spatiale (France)
Gillian S. Wright, Royal Observatory Edinburgh (United Kingdom)
Pierre-Olivier Lagage, CEA Saclay (France)
Koos W. Cornelisse, European Space Agency/ESTEC (Netherlands)
Peter Jakobsen, European Space Agency/ESTEC (Netherlands)

Published in SPIE Proceedings Vol. 4013:
UV, Optical, and IR Space Telescopes and Instruments
James B. Breckinridge; Peter Jakobsen, Editor(s)

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