Design and measured performance of the ISO Short Wavelength Spectrometer

Details Design and measured performance of the ISO Short Wavelength Spectrometer Design and measured performance of the ISO Short Wavelength Spectrometer

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.1946..293b&link_type=abstract

Proc. SPIE Vol. 1946, p. 293-301, Infrared Detectors and Instrumentation, Albert M. Fowler; Ed.

Computer Science

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Scientific paper

The Short Wavelength Spectrometer is one of the four instruments for the Infrared Space Observatory. The instrument operates at about 3 K. Employing diffraction gratings, if offers a resolving power between 1000 and 2000 in the wavelength range 2.45 to 45 micrometers . An additional Fabry-Perot interferometer offers resolutions between 25,000 and 30,000 in the range 12 to 45 micrometers . The instrument employs arrays of discrete detectors: InSb photo- diodes and Si:Ga, Si:Sb and Ge:Be photo-conductors. In the course of 1992, the flight unit was tested and characterized, with interruptions for minor modifications. The paper discusses the SWS design and its performance.

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