Actions for High-pressure, flux-conserving tokamak equilibria [electronic resource].
High-pressure, flux-conserving tokamak equilibria [electronic resource].
- Published
- Oak Ridge, Tenn. : Oak Ridge National Laboratory, 1976.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- Pages: 39 : digital, PDF file
- Additional Creators
- Oak Ridge National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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- Free-to-read Unrestricted online access
- Summary
- Magnetohydrodynamic (MHD) tokamak equilibria are found with values of ..beta.. up to 20 percent and prescribed MHD safety factor values (e.g., q(axis) = 1 and q(edge) = 4.8) for tokamaks with aspect ratio A = 4 and D-shaped cross section. If such equilibria could be attained experimentally, they would be very attractive for decreasing the projected costs of tokamak power reactors substantially. In the flux-conserving tokamak (FCT) model, where rapid heating is applied to an already relatively hot plasma, these high ..beta.. equilibria are achievable. We study the quasi-static evolution of FCT equilibria as ..beta.. increases. An operating window is found in the pressure profile width w/sub p/: for high ..beta.. the values of w/sub p/ must lie between 0.40 and 0.55 of the plasma minor width. Within this window, plasma current and poloidal ..beta.. increase monotonically with ..beta... For fixed plasma boundary, significant poloidal surface currents are induced, but these can be eliminated by small increases in the plasma minor radius, the pressure profile width, and the vacuum toroidal field.
- Report Numbers
- E 1.99:ornl/tm-5555
ornl/tm-5555 - Subject(s)
- Other Subject(s)
- Note
- Published through SciTech Connect.
08/01/1976.
"ornl/tm-5555"
Peng, Y.K.M.; Dory, R.A. - Funding Information
- W-7405-ENG-26
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