X-ray or gamma ray systems or devices – Source – Electron tube
Reexamination Certificate
2005-09-30
2008-11-04
Kao, Chih-Cheng G (Department: 2882)
X-ray or gamma ray systems or devices
Source
Electron tube
C378S064000, C378S124000
Reexamination Certificate
active
07447298
ABSTRACT:
A novel x-ray treatment system utilizes one or more large area flat panel sources of x-ray radiation directed into a target zone. A target substance within the target zone is irradiated with x-ray radiation from the one or more flat panel sources, reducing the biological effects of a contaminant presence therein. The flat panel source comprises an electron source, an electron accelerator, and an electron target medium. The electron source may emit electrons either via field emission or thermionic emission. The x-ray source may operate in transmissive, reflective, or combined transmissive/reflective mode. The use of large area flat panel x-ray sources in the inventive systems allows for decreased installation and operational costs as well as increased efficiency.
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Busta Heinz H.
Lesiak Stanley D.
Cabot Microelectronics Corporation
Kao Chih-Cheng G
Omholt Thomas E.
Pippenger Phillip M.
Weseman Steven D.
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