Magnetoencephalography with an Array of Squid Sensors.

Abstract

A novel installation was developed for unshielded measurements of the neuromagnetic field near the scape with a cryogenic system incorporating nine SQUID sensors in a single dewar. Five dc-SQUIDs measure the field of interest sensed by a radial array of five detection coils, while four rf-SQUIDs monitor three components of the ambient field and the axial gradient. The latter are applied to electronic cancellation of background noise. The dewar is mounted in a scanning device for rapid and accurate positioning about the head. This system provides major advantages over conventional single-sensor systems.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1984
Accession Number
ADA146170

Entities

People

  • D. B. Crum
  • L. Kaufman
  • M. Pelizzone
  • S. J. Williamson
  • Y. Okada

Organizations

  • New York University

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Accuracy
  • Ambient Noise
  • Cognition
  • Corporations
  • Detection
  • Detectors
  • Frequency
  • Gradiometers
  • Magnetic Detectors
  • Magnetic Fields
  • Magnetic Materials
  • Magnetometers
  • Materials Processing
  • Measurement
  • New York
  • Psychology
  • Spectra

Fields of Study

  • Physics

Readers

  • Neuroscience
  • Sensor Fusion and Tracking Systems.
  • Superconducting Magnet Technology

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene
  • Microelectronics - Microelectromechanical Systems