A DC SQUID FOR USE BELOW 1-K

Authors
GENG ZK ADAMS PW HAMILTON WO JOHNSON WW SOLOMONSON ND
Citation
Zk. Geng et al., A DC SQUID FOR USE BELOW 1-K, Review of scientific instruments, 64(5), 1993, pp. 1319-1323
Citations number
14
Categorie Soggetti
Physics, Applied","Instument & Instrumentation
Journal title
Review of scientific instruments → ACNP
ISSN journal
00346748
Volume
64
Issue
5
Year of publication
1993
Pages
1319 - 1323
Database
ISI
SICI code
0034-6748(1993)64:5<1319:ADSFUB>2.0.ZU;2-D
Abstract
For detection of weak signals, and for use on ultralow temperature exp eriments, 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 ot hers 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 HBAR.