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arXiv · 1707.05879

A Compact Cryogenic Thermal Source for Detector Array Characterization

David T. Chuss·Karwan Rostem·Edward J. Wollack·Leah Berman·Felipe Colazo·Martin DeGeorge·Kyle Helson·Marco Sagliocca
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Abstract

We describe the design, fabrication, and validation of a cryogenically-compatible quasioptical thermal source designed to be used for characterization of detector arrays. The source is constructed using a graphite-loaded epoxy mixture that is molded into a tiled pyramidal structure. The mold is fabricated using a hardened steel template produced via a wire EDM process. The absorptive mixture is bonded to a copper backplate enabling thermalization of the entire structure. The source reflectance is measured from 30-300 GHz and compared to models.

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David T. Chuss, Karwan Rostem, Edward J. Wollack, Leah Berman, Felipe Colazo, Martin DeGeorge, Kyle Helson, Marco Sagliocca. 2017-07-18. A Compact Cryogenic Thermal Source for Detector Array Characterization. https://doi.org/10.1063/1.4996751

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