Oil-free electron source for an EBT scanner

Details Oil-free electron source for an EBT scanner Oil-free electron source for an EBT scanner

2005-10-04

2005-10-04

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Source

C378S010000

Reexamination Certificate

active

06952466

ABSTRACT:
An oil-free electron source including a vacuum chamber within which a vacuum is maintained. A rigid insulated receptacle and an anode extend into the vacuum chamber and are mounted to opposite ends of the housing. A cathode-focus electrode assembly is mounted to an outer end of the receptacle and is suspended within the vacuum chamber by the receptacle. A high voltage connector is inserted into the receptacle and conveys voltage in an oil-free environment. The cathode and anode surfaces face each other and are aligned with respect to each other along an electron beam axis. The electron source may be provided within an electron beam scanner including a patient table, an x-ray source and detector obtaining x-ray scans of a patient, and a focus member directing an electron beam onto the x-ray source.

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patent: 2002/0003395 (2002-01-01), Burkhardt et al.

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