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Feasibility of a cryogenic multiplexer for spaceborne applications

✍ Scribed by T Rösgen; L Reyneri; O.N Devit

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
310 KB
Volume
27
Category
Article
ISSN
0011-2275

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✦ Synopsis

Several electronic device technologies (MOS, CMOS, GaAs) have been investigated for their suitability in an analogue signal multiplexer operating throughout the temperature range 4 K < T< 77 K. Constraints on leakage currents, channel resistance and radiation hardness led to the selection of GaAs as the candidate technology. Selected test results are presented and some problem areas identified.

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✍ R.P. Bywaters; R.A. Griffin 📂 Article 📅 1973 🏛 Elsevier Science 🌐 English ⚖ 756 KB

In spacebome cryogenic systems the lifetime and efficiency of a system can be increased by reducing the heat load to the dewar during non-operational periods. To achieve this a helium actuated gas-gap switching device has been developed.