These lectures are an introduction to the theory of ion cyclotron heating of tokamak plasmas. In the first part we will derive the kinetic equation which describes the evolution of the ion distribution function under the effect of resonant interactions with the waves, and briefly discuss its solution. The second, somewhat longer, part will be devot...

The weakly relativistic description of wave propagation and absorption in the electron cyclotron range of frequencies is reviewed. After a brief discussion of the relativistic cyclotron resonance condition, we derive the weakly relativistic dielectric tensor of a Maxwellian plasma in the form which is now canonical, in terms of the relativistic Pla...

Schulz, H. (Hannover Univ. (Germany). In...Kraemmer, U.Deutsches Elektronen-Synchrotron (DESY),...

The gauge-boson sector of perturbative scalar electrodynamics is investigated in detail as a testing ground for resummation methods in hot gauge theories. It also serves a simple non-trivial reference system for the non-Abelian gluon plasma. The complete next-to-leading order contributions to the polarization tensor are obtained within the resummat...

The ROSE campaign 1988/89 was a combined effort of ROcket and Scatter Experiments to further investigate the dynamics and the structure of the auroral E-region. This article presents rocket-borne d.c. and a.c. electric field measurements. It concentrates on the evaluation of low frequency field fluctuations around 25 Hz which dominated the wave act...

An asymptotic method of solving a scalar wave equation in inhomogeneous media is developed. This method is an extension of the WKB method to the multidimensional case. It reduces a general wave equation to a set of ordinary differential equations similar to that of the eikonal approach and includes the latter as a particular case. However, the WKB ...

Schulz, H. (Hannover Univ. (Germany). In...Deutsches Elektronen-Synchrotron (DESY),...

The longitudinal-electric oscillations of the hot gluon system are studied beyond the well known leading order term at high temperature T and small coupling g. The coefficient #eta# in #omega#"2 = m"2(1 + #eta#g#sq root#N) is calculated, where #omega# triple bond #omega#(#vector#q = 0) is the long-wavelength limit of the frequency spectrum, N the n...