Improvement in Plasma Performance with Lithium Coatings in NSTX
Lithium as a plasma-facing material has attractive features, including a reduction in the recycling of hydrogenic species and the potential for withstanding high heat and neutron fluxes in fusion reactors. Dramatic effects on plasma performance with lithium-coated plasma-facing components (PFCOs) have been demonstrated on many fusion devices, including TFTR, [1] T-11M, [2] and FT-U. [3] Using a liquid-lithium-filled tray as a limiter, the CDX-U device achieved very significant enhancement in the confinement time of ohmically heated plasmas. [4] The recent NSTX experiments reported here have demonstrated, for the first time, significant and recurring benefits of lithium PFC coatings on divertor plasma performance in both L- and H- mode regimes heated by neutral beams.
- Research Organization:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-ACO2-76CHO3073
- OSTI ID:
- 958414
- Report Number(s):
- PPPL-4330; TRN: US1000378
- Resource Relation:
- Conference: 35th EPS Plasma Physics Connference, Crete, Greece June 2008
- Country of Publication:
- United States
- Language:
- English
Similar Records
Plasma Performance Improvement with Lithium-Coated Plasma-Facing Components in NSTX
Lithium As Plasma Facing Component for Magnetic Fusion Research