X-ray or gamma ray systems or devices – Source – Electron tube
Patent
1998-11-05
2000-10-17
Bruce, David V.
X-ray or gamma ray systems or devices
Source
Electron tube
378121, 378123, 378137, H01J 3506
Patent
active
061343005
ABSTRACT:
A miniature x-ray source utilizing a hot filament cathode. The source has a millimeter scale size and is capable of producing broad spectrum x-ray emission over a wide range of x-ray energies. The miniature source consists of a compact vacuum tube assembly containing the hot filament cathode, an anode, a high voltage feedthru for delivering high voltage to the cathode, a getter for maintaining high vacuum, a connector for initial vacuum pump down and crimp-off, and a high voltage connection for attaching a compact high voltage cable to the high voltage feedthru. At least a portion of the vacuum tube wall is fabricated from highly x-ray transparent materials, such as sapphire, diamond, or boron nitride.
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Bell Perry M.
Robinson Ronald B.
Trebes James E.
Bruce David V.
Carnahan L. E.
Grzybicki Daryl S.
Ho Allen C.
The Regents of the University of California
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