Superconducting biomagnetometer with remote pickup coil

Details Superconducting biomagnetometer with remote pickup coil Superconducting biomagnetometer with remote pickup coil

1989-07-31

1991-10-29

Strecker, Gerard R.

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

128653R, 324248, 505846, G01R 33035, A61B 505, H01B 1200, H01F 508

Patent

active

050616803

ABSTRACT:
A biomagnetometer has a magnetic pickup coil positioned remotely from the detector. The detector is made from a low-temperature superconductor, while the pickup coil and an electrical connector between the detector and the pickup coil are made of a high-temperature superconductor. Although the detector is maintained in a dewar at a sufficiently low temperature to reduce electronic noise, the pickup coil and the electrical connector need only be maintained at a temperature at which they are superconducting. In one approach, the detector is maintained at liquid helium temperature, and the pickup coil and electrical connector are cooled by liquid nitrogen. The resulting biomagnetometer permits the pickup coil to be moved and positioned easily, and to be changed readily.

REFERENCES:
patent: 3980076 (1976-09-01), Wikswo, Jr. et al.
patent: 4079730 (1978-03-01), Wikswo, Jr. et al.
patent: 4324255 (1982-04-01), Barach et al.
patent: 4793355 (1988-12-01), Crum et al.
patent: 4827217 (1989-05-01), Paulson

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