U.S. Department of EnergyOffice of Scientific and Technical Information
Summary of the status of negative-ion-based neutral beams
Abstract
Negative-ion-based neutral beam systems can perform multiple functions for fusion reactors, such as heating, current drive in tokamak reactors, and establishing and maintaining potential barriers in tandem mirror reactors. Practical systems operating continuously at the 200 keV, 1 MW level can be built using present-day technology. Ion sources have been demonstrated that produce D/sup -/ beams with <5% electron content, and that operate at linear current densities that are within a factor of 2 of what conservatively designed accelerator/transport structures can handle. Concepts are in hand for transporting the negative ion beam through a neutron maze before neutralization, thus permitting a radiation-hardened beamline. With an advanced laser photoneutralizer, overall system power efficiencies of 70% should be possible. A national program is being planned to achieve the goal of application of 475 keV systems on a mirror ETR in 1994.
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Berkeley Lab., CA (USA)
- OSTI Identifier:
- 5740822
- Report Number(s):
- LBL-15616; CONF-830406-112
ON: DE84001328
- DOE Contract Number:
- AC03-76SF00098
- Resource Type:
- Conference
- Resource Relation:
- Conference: 5. topical meeting on technology of fusion energy, Knoxville, TN, USA, 26 Apr 1983; Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; NEUTRAL BEAM SOURCES; REVIEWS; ANIONS; BEAM INJECTION HEATING; CURRENT-DRIVE HEATING; NEUTRAL ATOM BEAM INJECTION; BEAM INJECTION; CHARGED PARTICLES; DOCUMENT TYPES; ELECTRIC HEATING; HEATING; IONS; JOULE HEATING; PLASMA HEATING; RESISTANCE HEATING; 700205* - Fusion Power Plant Technology- Fuel, Heating, & Injection Systems
Citation Formats
Cooper, W S. Summary of the status of negative-ion-based neutral beams. United States: N. p., 1983.
Web.
Cooper, W S. Summary of the status of negative-ion-based neutral beams. United States.
Cooper, W S. 1983.
"Summary of the status of negative-ion-based neutral beams". United States. https://www.osti.gov/servlets/purl/5740822.
@article{osti_5740822,
title = {Summary of the status of negative-ion-based neutral beams},
author = {Cooper, W S},
abstractNote = {Negative-ion-based neutral beam systems can perform multiple functions for fusion reactors, such as heating, current drive in tokamak reactors, and establishing and maintaining potential barriers in tandem mirror reactors. Practical systems operating continuously at the 200 keV, 1 MW level can be built using present-day technology. Ion sources have been demonstrated that produce D/sup -/ beams with <5% electron content, and that operate at linear current densities that are within a factor of 2 of what conservatively designed accelerator/transport structures can handle. Concepts are in hand for transporting the negative ion beam through a neutron maze before neutralization, thus permitting a radiation-hardened beamline. With an advanced laser photoneutralizer, overall system power efficiencies of 70% should be possible. A national program is being planned to achieve the goal of application of 475 keV systems on a mirror ETR in 1994.},
doi = {},
url = {https://www.osti.gov/biblio/5740822},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1983},
month = {Sat Jan 01 00:00:00 EST 1983}
}