Magnetic field stabilization method, magnetic field generating apparatus and magnetic resonance imaging apparatus
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United States of America Patent
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May 29, 2001
Grant Date -
N/A
app pub date -
Feb 9, 2000
filing date -
Apr 7, 1999
priority date (Note) -
Expired
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Abstract
In order to provide a magnetic field stabilization method, magnetic field generating apparatus and magnetic resonance imaging apparatus that is not affected by the temperature distribution in an installation space, in stabilizing a magnetic field of a magnetic field generating apparatus 2 having a pair of permanent magnets facing each other with a space interposed and yokes constituting a magnetic circuit for the permanent magnets, heat quantities to be applied to a plurality of positions are individually controlled (172, 174) based on the temperatures detected at a plurality of positions 154, 158 on the yoke to stabilize the respective temperatures at the plurality of positions.
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