Published November 1979 | Version v1
Journal article Metadata-only

High-performance UHF SQUID magnetometer

Creators

  • 1. School of Mathematical and Physical Sciences, University of Sussex, Brighton, BN1 9QH, United Kingdom

Description

We describe a lumped-component stabilized point contact SQUID magnetometer, biased at 430 MHz and utilizing a cooled (4.2 K) GaAs FET preamplifier. The system incorporates a full-bandwidth (5--10 MHz) flux-locked loop and has an overall flux sensitivity of 1 x 10-5 PHI0/(Hz)/sup 1/2/, corresponding to an energy sensitivity approx. = 4.5 x 10-31 J/Hz

Additional details

Publishing Information

Journal Title
Rev. Sci. Instrum.
Journal Volume
50
Journal Issue
11
Series
Rev. Sci. Instrum.
Journal Page Range
1376-1381
ISSN
0034-6748

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
11517867
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
AMPLIFIERS; ENERGY RESOLUTION; FIELD EFFECT TRANSISTORS; GALLIUM ARSENIDES; MAGNETIC FLUX; MAGNETOMETERS; MHZ RANGE 100-1000; SENSITIVITY; SQUID DEVICES; STABILIZED SUPERCONDUCTORS; ULTRALOW TEMPERATURE
Descriptors DEC
ARSENIC COMPOUNDS; ARSENIDES; ELECTRONIC EQUIPMENT; FLUXMETERS; FREQUENCY RANGE; GALLIUM COMPOUNDS; MEASURING INSTRUMENTS; MHZ RANGE; MICROWAVE EQUIPMENT; RESOLUTION; SEMICONDUCTOR DEVICES; SUPERCONDUCTING DEVICES; SUPERCONDUCTORS; TRANSISTORS