Theoretical studies on plasma heating and confinement. Final report, May 4, 1984--May 13, 1988 [electronic resource]
Saved in:
| Online Access: |
Online Access |
|---|---|
| Corporate Authors: | , |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Dept. of Energy ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
1993.
|
| Subjects: |
| Abstract: | Three principal topics are covered in this final report: Stabilization of low frequency modes of an axisymmetric compact torus plasma confinement system, such as, spheromaks and FRC̀S, by a population of large orbit axis encircling energetic ions. Employing an extension of the ̀energy principlè which utilizes a Vlasov description for the energetic ̀ion component, it has been demonstrated that short wavelength MHD type modes are stabilized while the long wavelength tilt and precessional modes are marginally stable. The deformation of the equilibrium configuration by the energetic ions results in the stabilization of the tilt mode for spheromaks. Formation of Ion Rings and their coalescence with spheromaks. A two dimensional electromagnetic PIC codes has been developed for the study of ion ring formation and its propagation, deformation and slowing down in a cold plasma. It has been shown that a ring moving at a speed less than the Alfven velocity can merge with a stationary spheromak. Anomalous transport from drift waves in a Tokomak. The Direct Interaction Approximation in used to obtain incremental transport coefficients for particles and heat for drift waves in a Tokomak. It is shown that the transport matrix does not obey Onsager̀s principle. |
|---|---|
| Item Description: | Published through the Information Bridge: DOE Scientific and Technical Information. 01/01/1993. "doe/er/53174--t1" "DE93007617" Sudan, R.N. |
| Physical Description: | 7 p. : digital, PDF file. |
| Type of Report and Period Covered Note: | Final; |