X-ray chopper wheel assembly and method
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United States of America Patent
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Oct 3, 2023
Grant Date -
Aug 11, 2022
app pub date -
Nov 15, 2021
filing date -
Apr 5, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An x-ray chopper wheel assembly, and corresponding method, include a chopper wheel having a solid area configured to block x-ray radiation received at a source side of the chopper wheel from an x-ray source. The chopper wheel defines one or more openings configured to pass x-ray radiation from the source side of the chopper wheel to an output side of the chopper wheel. The assembly further includes a source-side scatter plate arranged relative to the chopper wheel with a source-side gap in a range of approximately 0.2 mm to approximately 2.0 mm between the source-side scatter plate and the source side of the chopper wheel. The assembly and method can be used to limit leakage of scattered x-rays from the assembly, such as to safe levels for operation, while being significantly lighter than existing confinement enclosures.
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