More on core-localized toroidal Alfvén eigenmodesFunded under: EAEC-FUSION 12C
A novel type of ideal toroidal Alfvén eigenmode, localised in the low-shear core region of a tokamak plasma, is shown to exist, whose frequency is near the upper continuum of the toroidal Alfvén gap. This mode converts to a kinetic-type toroidal Alfvén eigenmode above a critical threshold that depends on aspect ratio, pressure gradient, and shear. Opposite to the usual ideal toroidal Alfvén eigenmode, this new mode is peaked in amplitude on the small-major-radius side of the plasma.
Bibliographic Reference: Report: JET-P(95)12 EN (1995) 16 pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199510916 / Last updated on: 1995-08-10
Original language: en
Available languages: en