Quasiperiodic relaxations of a transport barrier in these devices creates an unstable edge-localized mode. If the particle density follows the quasineutrality condition, turbulence within these devices is modeled by the Hasegawa-Mima equation. Instabilities in these objects are generally categorized according to their azimuthal wave number and are studied using the ideal MHD equations. These devices utilize electron cyclotron resonance heating and neutral beam injection in order to maintain operating temperature, and a 
Quasiperiodic relaxations of a transport barrier in these devices creates an unstable edge-localized mode. If the particle density follows the quasineutrality condition, turbulence within these devices is modeled by the Hasegawa-Mima equation. Instabilities in these objects are generally categorized according to their azimuthal wave number and are studied using the ideal MHD equations. These devices utilize electron cyclotron resonance heating and neutral beam injection in order to maintain operating temperature, and a linear precursor to these devices was the Z-pinch. The field lines in these structures have to move around in a helical shape, which is usually done by creating a toroidal and poloidal field. For 10 points, identify these toroidal devices which use magnetic fields to confine plasmas.
Quasiperiodic relaxations of a transport barrier in these devices creates an unstable edge-localized mode.
Tokamak [accept toroidal'nayakamera s magnitnymi katushkami; or toroidal'nayakamera s aksial'nym magnitnym polem or Whatever the Christ that is in Cyrillic from Jerry Vinokurov]