Patent · US Active

Method and apparatus for generating electron beams

US9064671B2 · kind B2 · utility

51Cited by

3References

28Claims

0Family size

Assignee

Arcam AB · SE

Inventors

Ulric Ljungblad · Mölndal, SE
Mattias Svensson · Säve, SE

Key dates

Filing date	Mar 14, 2013
Grant date	Jun 23, 2015
Priority date	—
Expiry date	Feb 1, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH01J2237/31732
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Various embodiments of the present invention relate to a plasma electron source apparatus. The apparatus comprises a cathode discharge chamber in which a plasma is generated, an exit hole provided in said cathode discharge chamber from which electrons from the plasma are extracted by an accelerating field provided between said cathode discharge chamber and an anode, at least one plasma confinement device, and a switching mechanism for switching the at least one plasma confinement device between a first value allowing for electron extraction from the plasma and a second value prohibiting electron extraction from the plasma. Associated methods are also provided.

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