Production of large resonant plasma volumes in microwave electron cyclotron resonance ion sources
Abstract
Microwave injection methods are disclosed for enhancing the performance of existing electron cyclotron resonance (ECR) ion sources. The methods are based on the use of high-power diverse frequency microwaves, including variable-frequency, multiple-discrete-frequency, and broadband microwaves. The methods effect large resonant ``volume`` ECR regions in the ion sources. The creation of these large ECR plasma volumes permits coupling of more microwave power into the plasma, resulting in the heating of a much larger electron population to higher energies, the effect of which is to produce higher charge state distributions and much higher intensities within a particular charge state than possible in present ECR ion sources. 5 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 321226
- Patent Number(s):
- 5841237
- Application Number:
- PAN: 8-892,492; TRN: 99:003303
- Assignee:
- Lockheed Martin Energy Research Corp., Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-96OR22464
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 24 Nov 1998
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 66 PHYSICS; ECR ION SOURCES; MICROWAVE RADIATION; PLASMA PRODUCTION; HIGH-FREQUENCY HEATING; CHARGE STATES
Citation Formats
Alton, G D. Production of large resonant plasma volumes in microwave electron cyclotron resonance ion sources. United States: N. p., 1998.
Web.
Alton, G D. Production of large resonant plasma volumes in microwave electron cyclotron resonance ion sources. United States.
Alton, G D. Tue .
"Production of large resonant plasma volumes in microwave electron cyclotron resonance ion sources". United States.
@article{osti_321226,
title = {Production of large resonant plasma volumes in microwave electron cyclotron resonance ion sources},
author = {Alton, G D},
abstractNote = {Microwave injection methods are disclosed for enhancing the performance of existing electron cyclotron resonance (ECR) ion sources. The methods are based on the use of high-power diverse frequency microwaves, including variable-frequency, multiple-discrete-frequency, and broadband microwaves. The methods effect large resonant ``volume`` ECR regions in the ion sources. The creation of these large ECR plasma volumes permits coupling of more microwave power into the plasma, resulting in the heating of a much larger electron population to higher energies, the effect of which is to produce higher charge state distributions and much higher intensities within a particular charge state than possible in present ECR ion sources. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 24 00:00:00 EST 1998},
month = {Tue Nov 24 00:00:00 EST 1998}
}
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