Abstract
We have constructed a two-stage SQUID amplifier intended for multiplexed
cryogenic detector arrays. The upper SQUID is a locally linearized 6 × 80 array showing 0.13 μΦ0 Hz − 1/2 flux noise at 4.2 K. The lower linearized 4 × 3 SQUID array has decoupled input and feedback coils and shows 0.28 μΦ0 Hz − 1/2 flux noise at 4.2 K. Design principles and measured performance are reviewed.
Original language | English |
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Number of pages | 7 |
Journal | Superconductor Science and Technology |
Volume | 24 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2011 |
MoE publication type | A1 Journal article-refereed |