Summary of the status of negative-ion based neutral beams

Conference · Thu Sep 01 00:00:00 EDT 1983 · Nucl. Technol./Fusion; (United States)

OSTI ID:6338304

Cooper, W S

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.

• Research Organization: Lawrence Berkeley Lab., Univ. of California, Berkeley, CA 94720
• OSTI ID: 6338304
• Report Number(s): CONF-830406-; TRN: 84-027452
• Journal Information: Nucl. Technol./Fusion; (United States), Vol. 4:2; Conference: 5. topical meeting on technology of fusion energy, Knoxville, TN, USA, 26 Apr 1983
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
NEUTRAL BEAM SOURCES
SURVEYS
BEAM NEUTRALIZATION
BEAM TRANSPORT
ENERGY EFFICIENCY
ETR REACTOR
ION BEAMS
ION SOURCES
KEV RANGE 100-1000
MAGNETIC MIRRORS
RESEARCH PROGRAMS
BEAMS
EFFICIENCY
ENERGY RANGE
ENRICHED URANIUM REACTORS
IRRADIATION REACTORS
ISOTOPE PRODUCTION REACTORS
KEV RANGE
OPEN PLASMA DEVICES
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
TANK TYPE REACTORS
TEST REACTORS
THERMAL REACTORS
THERMONUCLEAR DEVICES
WATER COOLED REACTORS
WATER MODERATED REACTORS
700205* - Fusion Power Plant Technology- Fuel
Heating
&amp; Injection Systems