DTIC ADA146170: Magnetoencephalography with an Array of pdf

DTIC ADA146170: Magnetoencephalography with an Array of

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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

• Creator/s: Defense Technical Information Center
• Date: 1/1/1984
• Year: 1984
• Book Topics/Themes: DTIC Archive, Williamson, S J, NEW YORK UNIV NY NEUROMAGNETISM LAB, *MAGNETIC DETECTORS, *BIOMAGNETISM, *MAGNETOENCEPHALOGRAMS, SCANNING, MEASUREMENT, MAGNETIC FIELDS, BRAIN, MONITORING, ARRAYS

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