Published March 1986 | Version v1
Journal article Metadata-only

Johnson noise in SQUID magnetometers

Creators

  • 1. Physics Department, The Pennsylvania State University, University Park, Pennsylvania 16802

Description

Conducting tubes threading the pick-up coils in SQUID magnetometers may generate magnetic flux noise larger than the intrinsic SQUID noise. A method for calculating the level of this noise is presented which can aid in the design of low noise systems. Application to a system in this lab predicts a noise level of 0.001 fluxoids rms/(Hz)1/sup //2, in good agreement with the observed level of 0.001 fluxoids rms in a 1-Hz bandwidth

Additional details

Publishing Information

Journal Title
Rev. Sci. Instrum.
Journal Volume
57
Journal Issue
3
Series
Rev. Sci. Instrum.
Journal Page Range
490-492
ISSN
0034-6748
CODEN
RSINA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
17042210
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
EXPERIMENTAL DATA; MAGNET COILS; MAGNETIC FLUX; MAGNETOMETERS; NOISE; SPECIFICATIONS; SQUID DEVICES; SUPERCONDUCTING COILS
Descriptors DEC
DATA; ELECTRIC COILS; ELECTRICAL EQUIPMENT; ELECTRONIC EQUIPMENT; EQUIPMENT; FLUXMETERS; INFORMATION; MEASURING INSTRUMENTS; MICROWAVE EQUIPMENT; NUMERICAL DATA; SUPERCONDUCTING DEVICES