Isotope mass scaling of AE damping rates in the JET tokamak plasmas

• The damping of radially extended Alfven eigenmodes in tokamak plasmas is investigated in JET discharges with different ion mass. The comparison of damping measurements with predictions of a gyro-kinetic model indicates that mode conversion into kinetic Alfven waves is the dominant damping mechanism for Alfven eigenmodes in the plasma core.

Nyckelord

plasma

Alfven waves

tokamak

damping

mode conversion

induced alfven eigenmodes

toroidicity

waves

stability

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