X-ray or gamma ray systems or devices – Beam control – Collimator
Reexamination Certificate
2008-10-16
2010-11-30
Song, Hoon (Department: 2882)
X-ray or gamma ray systems or devices
Beam control
Collimator
C378S009000
Reexamination Certificate
active
07844032
ABSTRACT:
A collimator includes a first plate having an aperture therein, the aperture configured to allow passage of a beam of x-rays from a source of a multi-spot source therethrough, and a second plate parallelly positioned with respect to the first plate and configured to receive and attenuate a first portion of the beam of x-rays passing through the aperture in the first plate, the second plate having an aperture therein configured to non-concentrically overlap the aperture in the first plate, to receive a second portion of the beam of x-rays passing through the aperture in the first plate, and to allow passage of the second portion of the beam of x-rays therethrough. A portion of the aperture in the first plate and a portion of the aperture in the second plate form a composite aperture parallel to the beam of x-rays, the composite aperture configured to allow passage of the second portion of the beam of x-rays through the first and second plates.
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Vermilyea Mark E.
Wilson Colin R.
Zou Yun
Asmus Scott J.
General Electric Company
Song Hoon
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