Magnetobremsstrahlung from moderately relativistic particles in the presence of a medium
Abstract
The emission and absorption coefficients of moderately relativistic electrons in a magnetized plasma with an arbitrary electron momentum distribution are derived from the dispersion relationships. Allowance is made for the effect of the refractive properties of the plasma on these coefficients (the Razin effect), and the case of transverse propagation is examined. The derived expressions are in the form of single series convenient for numerical calculations, this simplification being achieved by the use of the kinetic-equation method and Bessel-function asymptotics. An analysis is made of the influence of the Razin effect on a thermal plasma (e.g., emission from a fusion reactor) and a cold plasma with an admixture of nonthermal electrons (e.g., radio emission from solar flares).
- Publication:
-
VLF Propagation in the Earth-Ionosphere Waveguide Channel
- Pub Date:
- 1983
- Bibcode:
- 1983vpei.book..196G
- Keywords:
-
- Bremsstrahlung;
- Plasma Radiation;
- Plasma-Particle Interactions;
- Radio Emission;
- Relativistic Electron Beams;
- Absorptivity;
- Fusion Reactors;
- Kinetic Equations;
- Plasma Spectra;
- Radio Wave Refraction;
- Solar Radio Emission;
- Synchrotron Radiation;
- Thermal Plasmas;
- Transverse Waves;
- Plasma Physics