Vibration control in NMR magnet structures
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United States of America Patent
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-
May 21, 1991
Grant Date -
N/A
app pub date -
Mar 1, 1989
filing date -
Mar 1, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A medical NMR scanner adapted to be supported on the floor of a building or other structure by vibration limiting supports is disclosed. The scanner includes a frame defining a patient-receiving space adapted to receive a human body. It also includes a pair of opposed polar regions aligned on a polar axis. The polar regions are disposed on opposite sides of the patient-receiving space. Structure is provided in each of the polar regions for producing a magnetic field within the patient-receiving space. Attenuators, positioned intermediate the frame and the building floor, are provided for attenuating transmission of vibrations from the floor to the magnetic field producing structure in order to reduce scanner image degradation.
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