Abstract
The effect of an energetic ion population on the nonlinear stability of a tearing mode of single helicity is determined using kinetic theory. A dynamical equation is derived for the magnetic-island width. It is shown that the island growth can be suppressed in a tokamak when the energetic ion-density profile peaks just outside the rational surface. Effects due to resistive interchanges and bootstrap currents are included in the model.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2056-2059 |
| Number of pages | 4 |
| Journal | Physical review letters |
| Volume | 63 |
| Issue number | 19 |
| DOIs | |
| State | Published - 1989 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)