Improved ion source
Abstract
A magnetic filter for an ion source reduces the production of undesired ion species and improves the ion beam quality. High-energy ionizing electrons are confined by the magnetic filter to an ion source region, where the high-energy electrons ionize gas molecules. One embodiment of the magnetic filter uses permanent magnets oriented to establish a magnetic field transverse to the direction of travel of ions from the ion source region to the ion extraction region. In another embodiment, low energy 16 eV electrons are injected into the ion source to dissociate gas molecules and undesired ion species into desired ion species,
- Inventors:
- Issue Date:
- OSTI Identifier:
- 6368705
- Application Number:
- ON: DE83010471
- Assignee:
- ERA-08-030954; EDB-83-090122
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ION SOURCES; MAGNETIC FILTERS; BEAM EXTRACTION; ELECTRONS; ION BEAMS; BEAMS; ELEMENTARY PARTICLES; FERMIONS; FILTERS; LEPTONS; 700205* - Fusion Power Plant Technology- Fuel, Heating, & Injection Systems
Citation Formats
Leung, K N, and Ehlers, K W. Improved ion source. United States: N. p., 1982.
Web.
Leung, K N, & Ehlers, K W. Improved ion source. United States.
Leung, K N, and Ehlers, K W. Tue .
"Improved ion source". United States.
@article{osti_6368705,
title = {Improved ion source},
author = {Leung, K N and Ehlers, K W},
abstractNote = {A magnetic filter for an ion source reduces the production of undesired ion species and improves the ion beam quality. High-energy ionizing electrons are confined by the magnetic filter to an ion source region, where the high-energy electrons ionize gas molecules. One embodiment of the magnetic filter uses permanent magnets oriented to establish a magnetic field transverse to the direction of travel of ions from the ion source region to the ion extraction region. In another embodiment, low energy 16 eV electrons are injected into the ion source to dissociate gas molecules and undesired ion species into desired ion species,},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {5}
}
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