Liquid helium-cooled MOSFET preamplifier for use with astronomical bolometer

1 April 1977

journal article
research article
Published by AIP Publishing in Review of Scientific Instruments

Vol. 48 (4) , 389-391
https://doi.org/10.1063/1.1135045

Abstract

A liquid helium‐cooled p‐channel enhancement mode MOSFET, the 3N167, is found to have sufficiently low noise for use as a preamplifier with helium‐cooled bolometers that are used in infrared astronomy. Its characteristics at 300, 77, and 4.2 K are presented. It is also shown to have useful application with certain photoconductive and photovoltaic infrared detectors.

Keywords

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