Wave Driven Fast Ion Loss in the National Spherical Torus Experiment [electronic resource].
- Published
- Washington, D.C. : United States. Dept. of Energy. Office of Science, 2003.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- 1.4 MB pages : digital, PDF file
- Additional Creators
- United States. Department of Energy. Office of Science and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- The study of fast ion instabilities in conventional aspect ratio tokamaks is motivated in large part by their potential to negatively impact the ignition threshold in fusion reactors by causing fast ion losses. Spherical tokamak's (ST), with intrinsically low magnetic fields, are particularly susceptible to fast ion driven instabilities. The 3.5 MeV alpha's from the D-T [deuterium-tritium] fusion reaction in proposed ST reactors will have velocities much higher than the Alfven speed. The Larmor radius of the fusion alphas, normalized to the plasma size, will also be larger than for conventional aspect ratio tokamak reactors. The resulting longer wavelengths of the *AE instabilities will be more effective in driving fast ion loss. The change in magnetic topology also influences the mode structure, as in the case of the Compressional Alfven Eigenmodes (CAE) seen on NSTX.
- Report Numbers
- E 1.99:pppl-3851
pppl-3851 - Subject(s)
- Other Subject(s)
- Note
- Published through SciTech Connect.
08/05/2003.
"pppl-3851"
R.B. White; C.Z. Cheng; G. Fu; N.N. Gorelenkov; D. Darrow; E.D. Fredrickson; S.S. Medley; J. Menard; D. Stutman; G. Kramer; L. Roquemore.
Princeton Plasma Physics Lab., NJ (US) - Type of Report and Period Covered Note
- Topical;
- Funding Information
- AC02-76CH03073
View MARC record | catkey: 14740531