Title: ION SOURCE WITH SPACE CHARGE NEUTRALIZATION

Abstract

This patent relates to a space charge neutralized ion source in which a refluxing gas-fed arc discharge is provided between a cathode and a gas-fed anode to provide ions. An electron gun directs a controlled, monoenergetic electron beam through the discharge. A space charge neutralization is effected in the ion source and accelerating gap by oscillating low energy electrons, and a space charge neutralization of the source exit beam is effected by the monoenergetic electron beam beyond the source exit end. The neutralized beam may be accelerated to any desired energy at densities well above the limitation imposed by Langmuir-Child' s law. (AEC)

Inventors:

Flowers, J W; Luce, J S; Stirling, W L

Issue Date:

1963-01-22

OSTI Identifier:

4723074

Patent Number(s):

3075115

Assignee:

U.S. Atomic Energy Commission

Patent Classifications (CPCs):

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

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H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE

H05H5/00 - Direct voltage accelerators

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

H01J27/04 - using reflex discharge, e.g. Penning ion sources {

F - MECHANICAL ENGINEERING F03 - MACHINES OR ENGINES FOR LIQUIDS F03H - PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR

F03H1/0068 - {with a central channel, e.g. end-Hall type}
F03H1/0025 - {Neutralisers, i.e. means for keeping electrical neutrality}

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NSA Number:

NSA-17-008580

Resource Type:

Patent

Resource Relation:

Other Information: Orig. Receipt Date: 31-DEC-63

Country of Publication:

United States

Language:

English

Subject:

INSTRUMENTS AND INSTRUMENTATION; ANODES; CATHODES; ELECTRIC ARCS; ELECTRIC CHARGES; ELECTRON BEAMS; ENERGY; ION SOURCES; MONOCHROMATORS; SPACE CHARGE