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

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2017年 / 88卷 / 10期

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

页数：9

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