Magnet assembly for MRI apparatus

Details Magnet assembly for MRI apparatus Magnet assembly for MRI apparatus

1996-05-17

1997-07-29

Arana, Louis M.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324319, G01V 300

Patent

active

056525176

ABSTRACT:
The invention improves thermal efficiency and control follow-up properties by providing an AC sheet heater and a DC sheet heater on the respective side surfaces of an upper base yoke and a lower base yoke, and a temperature sensor near the center of the upper surface of the upper base yoke, whereby the permanent magnets of the magnet assembly are first heated by use of both the AC and DC sheet heaters, and then, with the temperature monitored by the temperature sensor, the temperature is adjusted by use of only the DC sheet heater.

REFERENCES:
patent: 4663592 (1987-05-01), Yamaguchi et al.
patent: 5397987 (1995-03-01), Garritano

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