Patent · US Active

System and method for beam focusing and control in an indirectly heated cathode

US8477908B2 · kind B2 · utility

3Cited by

6References

22Claims

0Family size

Assignee

General Electric Company · US

Inventors

Yun Zou · Clifton Park, US
Vance Scott Robinson · Glenville, US
Louis Paul Inzinna · Scotia, US
Kenneth Roger Conway · Clifton Park, US
Sergio Lemaitre · Whitefish Bay, US
Mark Alan Frontera · Ballston Lake, US
Xi Zhang · Chengdu, CN
Vasile Bogdan Neculaes · Niskayuna, US

Key dates

Filing date	Nov 13, 2009
Grant date	Jul 2, 2013
Priority date	—
Expiry date	Nov 13, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH01J2235/167
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An indirectly heated cathode assembly is presented. The indirectly heated cathode assembly includes at least one electron source for generating a first electron beam, an emitter for producing a second electron beam when heated by the first electron beam and a focusing electrode for controlling, and directing the first electron beam towards the emitter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.