发明名称 |
MAGNETIC ASSEMBLY AND METHOD FOR DEFINING A MAGNETIC FIELD FOR AN IMAGING VOLUME |
摘要 |
<p>Disclosed herein is a magnet assembly that includes at least two magnets arranged in a fixed spaced relationship with one another thereby to define a space between the magnets that encompasses an imaging volume. Each of the magnets produces a variety of magnetic field strengths across inward-facing surfaces thereof that, in combination, produce an acceptably homogeneous magnetic field in the imaging volume. Also disclosed is a method of defining a magnetic field for an imaging volume. The method comprises generating an initial model of a magnet assembly; estimating a magnetic field for the imaging volume based on the model; calculating deviation between the estimated magnetic field and a target magnetic field for the imaging volume; and updating the model to reduce the deviation by modifying the magnet assembly to produce a variety of magnetic field strengths that, in combination, produce substantially the target magnetic field in the imaging volume.</p> |
申请公布号 |
WO2009155691(A1) |
申请公布日期 |
2009.12.30 |
申请号 |
WO2009CA00860 |
申请日期 |
2009.06.25 |
申请人 |
FALLONE, GINO, B.;TADIC, TONY;MURRAY, BRAD |
发明人 |
FALLONE, GINO, B.;TADIC, TONY;MURRAY, BRAD |
分类号 |
H01F7/00;G01R33/387;G01R33/3875;G01R33/48;G21K1/093;H01F41/02 |
主分类号 |
H01F7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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