Observation of beta-limits in highly elongated tokamak plasmas
According to the Troyan scaling law, the beta-limit is proportional to the plasma current and inversely proportional to the horizontal minor radius and the toroidal magnetic field, where the Troyan factor is significantly reduced at high elongation or near the plasma current limit. Experimentally, the degradation of the Troyan factor at high elongation has not yet been clearly demonstrated up to now, mainly because very few tokamaks are equipped with feedback systems allowing operation beyond k=2.
Bibliographic Reference: Article: Proceedings Vol II of 1998 International Congress on Plasma Physics 25th EPS Conference on Controlled Fusion and Plasma Physics, (1998)
Record Number: 199910917 / Last updated on: 1999-07-05
Original language: en
Available languages: en