Thermal and mechanical architecture for the SAFARI focal plane assembly

J. Martignac

doi:10.1117/12.856712

15 July 2010 Thermal and mechanical architecture for the SAFARI focal plane assembly

J. Martignac

Proceedings Volume 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V; 77412R (2010) https://doi.org/10.1117/12.856712
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

The very challenging SPICA/SAFARI scientific goals imply to cool most detector solutions below 100 mK. This implies to find reliable solutions providing not only very efficient thermal insulation between the different temperature stages, but also keeping the stray light level well below the foreseen astronomical background (20 aW/pixel !). The main constraint is the available power budget (1-2μW); this value includes optical, electrical and parasitic power loads. This poster describes how the Herschel/PACS Bolometer Focal Plane thermo-mechanical design can be adapted to the new thermal and optical needs, while keeping a sufficiently stiff structure to withstand launch vibrations. We give the first results on the thermal and mechanical behaviour obtained with a prototype.

Citation Download Citation

J. Martignac "Thermal and mechanical architecture for the SAFARI focal plane assembly", Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 77412R (15 July 2010); https://doi.org/10.1117/12.856712

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