Scan room for magnetic resonance imager
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Dec 25, 1990
Grant Date -
N/A
app pub date -
Jul 5, 1988
filing date -
Dec 17, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A scan room is disclosed in which a magnetic resonance (MR) imager can be located that will reduce to an acceptable level outside the room the strength of the fringe magnetic fields produced by the imager and that will shield the imager from magnetic, radio frequency electromagnetic, and electric fields outside the room, while allowing the magnet of the imager to be shimmed to produce a sufficient homogeneous field to obtain the desired images. The scan room is rectangular although it could be cylindrical or spherical. Its walls, floor, and ceiling are made of a plurality of steel plate welded together. The thickness of the walls can vary as the distance from the magnet and the permeability of the steel plates varies. A steel door allows patients and medical personnel to enter and leave the room.
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