A cryogenic thermal source for detector array characterization

被引:18
作者
Chuss, David T. [1 ]
Rostem, Karwan [2 ]
Wollack, Edward J. [2 ]
Berman, Leah [1 ]
Colazo, Felipe [2 ]
DeGeorge, Martin [1 ]
Helson, Kyle [2 ]
Sagliocca, Marco [2 ]
机构
[1] Villanova Univ, Dept Phys, 800 E Lancaster Ave, Villanova, PA 19085 USA
[2] NASA, Goddard Space Flight Ctr, Code 665, Greenbelt, MD 20771 USA
关键词
SURFACES; SUBMILLIMETER; POLARIZATION; CALIBRATOR; REGION; DESIGN;
D O I
10.1063/1.4996751
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
We describe the design, fabrication, and validation of a cryogenically compatible quasioptical thermal source 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 electron discharge machining process. The absorptive mixture is bonded to a copper backplate enabling thermalization of the entire structure and measurement of the source temperature. Measurements indicate that the reflectance of the source is <0.001 across a spectral band extending from 75 to 330 GHz. Published by AIP Publishing.
引用
收藏
页数:9
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