Negative deuterium ions for tandem mirror next step and tandem mirror reactors

Conference · Thu Sep 25 00:00:00 EDT 1980

OSTI ID:6997981

Hamilton, G W

Recent designs for mirror fusion reactors with good power balance include ambipolar potential plugs to reduce end losses and thermal barriers to maintain a difference in electron temperature between the large-volume central cell plasma and the confining end plugs. These designs led to several new requirements for D/sup 0/ neutral beams derived from negative ions at energies of 150 to 200 keV and possibly higher. Such beams are required for injection of fat ions into the plugs and the barrier and for charge-exchange pumping of thermal ions diffusing into the barrier. Negative ions are preferred for these purposes because of their relatively high efficiency of neutralization and their high purity of single-energy D/sup -/. Examples of injector designs for Tandem Mirror Next Step (TMNS) and Tandem Mirror Reactors (TMR) are presented.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6997981
• Report Number(s): UCRL-84888; CONF-801068-2; TRN: 80-018469
• Resource Relation: Conference: 2. international symposium on the production and neutralization of negative hydrogen ions and beams, Upton, NY, USA, 6 Oct 1980
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
NEUTRAL BEAM SOURCES
DESIGN
TMR REACTORS
ANIONS
CHARGE EXCHANGE
DEUTERIUM IONS
NEUTRAL ATOM BEAM INJECTION
BEAM INJECTION
CHARGED PARTICLES
IONS
MAGNETIC MIRROR TYPE REACTORS
THERMONUCLEAR REACTORS
700205* - Fusion Power Plant Technology- Fuel
Heating
& Injection Systems