Magnetic shielding for a PET detector system
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United States of America Patent
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Sep 6, 2011
Grant Date -
Aug 6, 2009
app pub date -
Feb 11, 2009
filing date -
Oct 31, 2006
priority date (Note) -
In Force
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Abstract
′) may also be provided, comprising a ferromagnetic material having higher magnetic permeability and lower magnetic saturation characteristics as compared with the magnetic field shielding enclosure, the second magnetic field shielding also arranged to shield the photomultiplier tubes of the radiation detector ring. The secondary magnetic field shielding may comprise a mu-metal. The PET detector ring may be part of a hybrid imaging system also including a magnetic resonance (MR) scanner, the PET detector ring being arranged respective to the MR scanner such that a stray magnetic field from the MR scanner impinges on the PET detector ring.
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