Portal de Periódicos da CAPES

ECR plasma heating in the TM-3 tokamak in magnetic fields up to 25 kOe

1976; Volume: 2; Linguagem: Inglês

V. V. Alikaev, G. A. Bobrovskiǐ, V. I. Pozniak, K. A. Razumova, V. V. Sannikov, Iu. A. Sokolov, A. A. Shmarin,

Superconducting Materials and Applications

As research on plasma heating at the electron cyclotron resonance (ECR) in the TM-3 tokamak has progressed, there have been both an increase in the resonant magnetic field and an attempt to confirm that the bulk of the electrons are heated. Comparison of the data obtained by Thomas scattering and by diamagnetic measurements shows that the bulk of the electrons are in fact heated. It has become possible to study the dependence of tau/sub epsilon/ on T/sub e/ more accurately; it turns out that the actual behavior is tau/sub epsilon/proportionalT/sub e/ and that the behavior of the thermal conductivity is kappaproportionalT/sub e//sup -1/. The intensity decay of the microwave emission after the ECR heating is turned off implies that the confinement time for the energy carried by electrons increases with increasing longitudinal energy of the electrons. With H/sub z/=5 kOe and J=4kA, the value ..beta../sub J/approx. =2.2 has been achieved in ECR heating at the second harmonic. (AIP)