Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure
Reexamination Certificate
2008-07-15
2008-07-15
Dinh, Trinh Vo (Department: 2821)
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Combined cathode ray tube and circuit element structure
C315S005420, C315S500000, C315S501000
Reexamination Certificate
active
10957212
ABSTRACT:
A method for generating an electron beam includes prescribing a location, and generating an envelope of electrons, the envelope having a waist, wherein the generating is performed such that the waist of the envelope is at or adjacent to the prescribed location. A device for generating an electron beam includes a gun source for generating electrons, and a plurality of electromagnetic cavities coupled in series to form a body, the electromagnetic cavities configured to accelerate at least some of the electrons to create a beam of electrons at an energy level having a value between 5 MeV and 20 MeV, the beam of electrons having a cross sectional dimension that is 0.02 λ (or 2 mm) or less.
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Kauffman Michael A.
Meddaugh Gard E.
Salop Arthur
Trail Mark E.
Whittum David H.
Bingham & McCutchen LLP
Dinh Trinh Vo
Varian Medical Systems Technologies, Inc.
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