Production and maintenance of high poloidal beta tokamak plasmas by means of rf current drive
1989; American Physical Society; Volume: 62; Issue: 13 Linguagem: Inglês
10.1103/physrevlett.62.1508
ISSN1092-0145
AutoresS. Luckhardt, K.-I. Chen, S. Coda, J. Kesner, R. K. Kirkwood, Barton Lane, M. Porkoláb, Jared Squire,
Tópico(s)Fusion materials and technologies
ResumoIt is shown that in tokamak plasmas sustained by rf current drive, the contribution of the suprathermal rf-driven electron population to the poloidal beta (${\ensuremath{\beta}}_{p}$) can be substantial if the total current is comparable to the Alfv\'en critical current, ${I}_{A}$=(4\ensuremath{\pi}mcv/${\ensuremath{\mu}}_{0}$ec)\ensuremath{\gamma}. Equilibria with values of \ensuremath{\epsilon}${\ensuremath{\beta}}_{p}$ up to approximately 1.3 were obtained, and no equilibrium or gross stability limits were observed.
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