8 September 2006 MERTIS: a highly integrated IR imaging spectrometer
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Abstract
With a background of several instrument developments in the past the German Aerospace Center in Berlin proposed for ESA's deep space mission BepiColombo an imaging spectrometer which meets the challenges of limited technical resources and a very special operational environment. An 80-channel push broom-type spectrometer has been drafted and it s development has been started under the name MERTIS (MErcury Radiometer and Thermal Infrared Spectrometer). The instrument is dedicated to the mineralogy surface science and thermal characteristics studies of the innermost planet. It is based on modern un-cooled micro-bolometer technology and all-reflective optics design. The operation concept principle is characterised by intermediate scanning of the planet, deep space and black bodies as calibration targets. A miniaturised radiometer is included for low level temperature measurements. Altogether the system shall fit into a CD-package sized cube and weigh less than 3 kg. The paper will present the instrument architecture of MERTIS, its design status and will show the results of first components being built.
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I. Walter, H. Hirsch, H. Jahn, J. Knollenberg, H. Venus, "MERTIS: a highly integrated IR imaging spectrometer", Proc. SPIE 6297, Infrared Spaceborne Remote Sensing XIV, 62970X (8 September 2006); doi: 10.1117/12.679481; https://doi.org/10.1117/12.679481
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