A dc SQUID for use below 1 K

Document Type

Article

Publication Date

12-1-1993

Abstract

For detection of weak signals, and for use on ultralow temperature experiments, it would be useful to have a robust superconducting quantum interference device (SQUID) amplifier that works below 1 K. We report on a test of a commercial SQUID amplifier that has lower noise than others we have tested, and works well while attached to a 50-mK chamber. The SQUID noise was improved only modestly when cooled from 4 K to 50 mK. The best energy resolution measured was 2200 h.

Publication Source (Journal or Book title)

Review of Scientific Instruments

First Page

1319

Last Page

1323

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