X-ray or gamma ray systems or devices – Beam control – Collimator
Reexamination Certificate
2006-11-28
2009-02-24
Glick, Edward J. (Department: 2882)
X-ray or gamma ray systems or devices
Beam control
Collimator
C378S147000
Reexamination Certificate
active
07496181
ABSTRACT:
Reduced source spacing for multi-source, multi-detector X-ray imaging systems is provided by allowing channels within an X-ray collimator to intersect within the body of the collimator. As a result, the channels are not independent, and the source spacing can be significantly reduced. Although such collimators have a much more “open” structure than conventional collimators having independent channels, they can still provide efficient collimation performance (e.g., predicted leakage <5%). Several high attenuation layers having through holes and stacked together can provide collimators according to the invention, where the through holes combine to form the intersecting channels.
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Mazin Samuel R.
Pelc Norbert J.
Glick Edward J.
Lumen Patent Firm, Inc.
Sanei Mona M.
The Board of Trustees of the Leland Stanford Junior University
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