X-ray or gamma ray systems or devices – Beam control – Filter
Reexamination Certificate
2009-09-28
2011-12-13
Yun, Jurie (Department: 2882)
X-ray or gamma ray systems or devices
Beam control
Filter
C378S205000, C378S206000
Reexamination Certificate
active
08077830
ABSTRACT:
A system includes a beam filter positioning device including a plate configured to support one or more beam filters, and one or more axes operable to move the plate relative to a beam line. A control mechanism is coupled to the one or more axes for controlling the movement of the axes and configured to automatically adjust the position of at least one of the one or more beam filters relative to the beam line.
REFERENCES:
patent: 4627089 (1986-12-01), Menor et al.
Brown Christopher E.
Mansfield Stanley
Mohr Stephen
Prince Steven W.
Strachan William A.
Houst Consulting
Varian Medical Systems Inc.
Yun Jurie
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