27 July 1981 Application Of JFets To Low Background Focal Planes In Space
Author Affiliations +
Proceedings Volume 0280, Infrared Astronomy: Scientific/Military Thrusts and Instrumentation; (1981) https://doi.org/10.1117/12.931946
Event: 1981 Technical Symposium East, 1981, Washington, D.C., United States
Abstract
Self-heated JFets, suitable for use in low background focal planes cooled to cryogenic temperatures, have been developed and tested. For feedback resistances of 2 E 10 ohm at 4.2K the noise contributed by the amplifier is less than the Johnson noise of 2 μv/Hz1/2. Excellent dc stability has been demonstrated at a power level of 0.1 mw per JFet. These devices offer the possibility of much improved performance, greater reliability and less sensitivity to nuclear radiation when compared to MosFets.
© (1981) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
F. J. Low, "Application Of JFets To Low Background Focal Planes In Space", Proc. SPIE 0280, Infrared Astronomy: Scientific/Military Thrusts and Instrumentation, (27 July 1981); doi: 10.1117/12.931946; https://doi.org/10.1117/12.931946
PROCEEDINGS
5 PAGES


SHARE
Back to Top