Alignment and cryogenic testing of the Cassini Composite InfraRed Spectrometer (CIRS) far-infrared (FIR) focal plane

Julie A. Crooke; John G. Hagopian

doi:10.1117/12.254152

14 October 1996 Alignment and cryogenic testing of the Cassini Composite InfraRed Spectrometer (CIRS) far-infrared (FIR) focal plane

Julie A. Crooke, John G. Hagopian

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Proceedings Volume 2814, Cryogenic Optical Systems and Instruments VII; (1996) https://doi.org/10.1117/12.254152
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

The CIRS instrument to be flown on the Cassini mission to Saturn is a cryogenic spectrometer with far-IR (FIR) and mid-IR (MIR) channels. The CIRS FIR focal plane consists of focussing optics, an output polarizer/analyzer which splits the output radiation according to polarization. The reflected and transmitted components are imaged by concentrating cones onto gold black foil thermopiles. The focal plane covers the spectral range of 10-600 cm^(-1). The geometric field-of-view requirement is 4.3 mrad. This paper details the assembly, alignment, characterization, cryogenic testing, and flight qualification of the CIRS FIR focal plane.

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Julie A. Crooke and John G. Hagopian "Alignment and cryogenic testing of the Cassini Composite InfraRed Spectrometer (CIRS) far-infrared (FIR) focal plane", Proc. SPIE 2814, Cryogenic Optical Systems and Instruments VII, (14 October 1996); https://doi.org/10.1117/12.254152

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