Permanent magnet assembly and method of making thereof
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United States of America Patent
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-
Feb 25, 2003
Grant Date -
Dec 5, 2002
app pub date -
May 31, 2002
filing date -
Apr 3, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An imaging apparatus, such as an MRI system, contains at least one layer of soft magnetic material between the yoke and each permanent magnet. This imaging apparatus may be operated without pole pieces due to the presence of the soft magnetic material. The permanent magnets may be fabricated by magnetizing unmagnetized alloy bodies after the unmagnetized alloy bodies have been attached to the yoke.
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