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Title: Method and apparatus for preventing cyclotron breakdown in partially evacuated waveguide

Abstract

Cyclotron breakdown is prevented in a partially evacuated waveguide by providing a section of waveguide having an axial cut therein in order to apply a potential across the two halves of the waveguide. This section is positioned in the waveguide crossing the area of electron cyclotron resonance. The potential applied across the waveguide halves is used to deflect seed electrons into the wall of the waveguide in order to prevent ionization of gas molecules and creation of more electron ion pairs which would result in cyclotron breakdown. Support means is also disclosed for electrically isolating the waveguide halves and transition means is provided between the section of the waveguide with the axial cut and the solid waveguide at either end thereof.

Inventors:
 [1]
  1. Del Mar, CA
Issue Date:
Research Org.:
General Atomics, San Diego, CA (United States)
OSTI Identifier:
866340
Patent Number(s):
4687616
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
DOE Contract Number:  
AT03-84ER51044
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; preventing; cyclotron; breakdown; partially; evacuated; waveguide; prevented; providing; section; axial; cut; therein; apply; potential; halves; positioned; crossing; electron; resonance; applied; deflect; seed; electrons; wall; prevent; ionization; gas; molecules; creation; pairs; result; support; means; disclosed; electrically; isolating; transition; provided; solid; potential applied; electron cyclotron; gas molecules; support means; cyclotron resonance; partially evacuated; electrically isolating; cyclotron breakdown; evacuated waveguide; axial cut; /376/219/

Citation Formats

Moeller, Charles P. Method and apparatus for preventing cyclotron breakdown in partially evacuated waveguide. United States: N. p., 1987. Web.
Moeller, Charles P. Method and apparatus for preventing cyclotron breakdown in partially evacuated waveguide. United States.
Moeller, Charles P. Thu . "Method and apparatus for preventing cyclotron breakdown in partially evacuated waveguide". United States. https://www.osti.gov/servlets/purl/866340.
@article{osti_866340,
title = {Method and apparatus for preventing cyclotron breakdown in partially evacuated waveguide},
author = {Moeller, Charles P},
abstractNote = {Cyclotron breakdown is prevented in a partially evacuated waveguide by providing a section of waveguide having an axial cut therein in order to apply a potential across the two halves of the waveguide. This section is positioned in the waveguide crossing the area of electron cyclotron resonance. The potential applied across the waveguide halves is used to deflect seed electrons into the wall of the waveguide in order to prevent ionization of gas molecules and creation of more electron ion pairs which would result in cyclotron breakdown. Support means is also disclosed for electrically isolating the waveguide halves and transition means is provided between the section of the waveguide with the axial cut and the solid waveguide at either end thereof.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {1}
}

Patent:

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