Invention Grant
- Patent Title: Shield structure and focal spot control assembly for x-ray device
- Patent Title (中): X射线装置的屏蔽结构和焦点控制组件
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Application No.: US10933806Application Date: 2004-09-03
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Publication No.: US07289603B2Publication Date: 2007-10-30
- Inventor: Gregory C. Andrews , James R. Boye
- Applicant: Gregory C. Andrews , James R. Boye
- Applicant Address: US CA Palo Alto
- Assignee: Varian Medical Systems Technologies, Inc.
- Current Assignee: Varian Medical Systems Technologies, Inc.
- Current Assignee Address: US CA Palo Alto
- Agency: Workman Nydegger
- Main IPC: H01J35/14
- IPC: H01J35/14

Abstract:
A shield structure and focal spot control assembly is provided for use in connection with an x-ray device that includes an anode and cathode disposed in a vacuum enclosure in a spaced apart arrangement so that a target surface of the anode is positioned to receive electrons emitted by the cathode. The shield structure is configured to be interposed between the anode and the cathode and includes an interior surface that defines an aperture or other opening through which the electrons are passed from the cathode to the target surface of the anode. Additionally, fluid passageways defined in connection with the shield structure enable cooling of the shield structure. Finally, a magnetic device disposed proximate the cathode facilitates control of the location of the focal spot on the target surface of the anode.
Public/Granted literature
- US20060050850A1 Shield structure and focal spot control assembly for x-ray device Public/Granted day:2006-03-09
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