Patent · US Expired

Ion generating source

US4123686A · kind A · utility

13Cited by

1References

10Claims

0Family size

Assignee

Gesellschaft für Schwerionenforschung mbH · DE

Inventors

Roderich Keller · Darmstadt, DE
Michael Muller · Bensberg, DE

Key dates

Filing date	Mar 4, 1977
Grant date	Oct 31, 1978
Priority date	—
Expiry date	Mar 4, 1997

Classification

Technology area (CPC H)Electricity
CPC primaryH01J3/04
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A source for generating singly and/or multiply charged ions composed essentially of a glow cathode, an intermediate electrode and an anode electrode having a common axis of symmetry and bordering a gas discharge chamber and each presenting a passage opening coaxial with the axis of symmetry, and a system producing a magnetic field having an axial component along the axis of symmetry, with the anode electrode opening being at a location where the magnitude of the axial component of the magnetic field is substantially equal to its maximum value.

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