FORCAST: a facility 5- to 40-μm camera for SOFIA

L. D. Keller, T. Herter, G. J. Stacey, G. E. Gull, Bruce Pirger, J. Schoenwald, Harry Bowman, T. Nikola

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2000 · 15 citations · 0 references

Concepts

Abstract

We are constructing a facility-class, mid/far-infrared camera for the Stratospheric Observatory for Infrared Astronomy (SOFIA). The Faint Object infraRed CAmera for the Sofia Telescope (FORCAST) is a two-channel camera with selectable filters for continuum imaging in the 5 - 8, 17 - 25 micron, and/or 25 - 40 micron regions. The design supports simultaneous imaging in the two-channels. Using the latest 256 X 256 Si:As and Si:Sb blocked-impurity-band detector array technology to provide high-sensitivity wide- field imaging. FORCAST will sample images at 0.75 arcsec/pixel and have a 3.2' X 3.2' instantaneous field- of-view. Imaging is diffraction limited for lambda > 15 microns.