Preliminary design of the PACS grating assembly for the FIRST mission

Etienne Renotte; Jean-Marie Gillis; Claude A. J. Jamar; P. Laport; Th. Salee; S. Crehay

doi:10.1117/12.372696

6 December 1999 Preliminary design of the PACS grating assembly for the FIRST mission

Etienne Renotte, Jean-Marie Gillis, Claude A. J. Jamar, P. Laport, Th. Salee, S. Crehay

Proceedings Volume 3759, Infrared Spaceborne Remote Sensing VII; (1999) https://doi.org/10.1117/12.372696
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

The Photoconductor Array Camera and Spectrometer (PACS) is an imaging spectro-photometer which forms part of the science payload of the Far InfraRed and Submillimeter Telescope (FIRST), an ESA cornerstone mission (CS4) to be launched in 2007. This paper reports the preliminary developments of the motorized grating assembly for the PACS spectrometer. The PACS grating shall be capable of accurate positioning (4 arcsec) within a large angular throw (40 arcdeg) in cryogenic environment (4 K). Technologies and trade-offs of grating manufacturing, actuators, pivots, position sensors, and servo- control are presented.

Citation Download Citation

Etienne Renotte, Jean-Marie Gillis, Claude A. J. Jamar, P. Laport, Th. Salee, and S. Crehay "Preliminary design of the PACS grating assembly for the FIRST mission", Proc. SPIE 3759, Infrared Spaceborne Remote Sensing VII, (6 December 1999); https://doi.org/10.1117/12.372696

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