Accession Number:

ADA142341

Title:

Acceleration of Ions and Electrons by Wave-Particle Interactions

Descriptive Note:

Final rept. 1 Mar 1982-31 Mar 1984

Corporate Author:

MARYLAND UNIV COLLEGE PARK INST FOR PHYSICAL SCIENCE AND TECHNOLOGY

Personal Author(s):

Report Date:

1984-03-31

Pagination or Media Count:

205.0

Abstract:

The research program is devoted to analyzing the processes responsible for the acceleration of ions and electrons in plasmas, to studying instabilities resulting from energetic ion beams streaming across a magnetic field, or other non-equilibrium features, such as temperature anisotropy or a loss-cone distribution function, and to calculating the spontaneous emission of radiation at the fundamental and harmonics of the cyclotron frequency. The program is divided into six closely related projects. The first and second parts with electromagnetic and electrostatic instabilities resulting from an energetic ion beam streaming across the magnetic field and electron temperature anisotropy in the earths bow shock and in magnetic mirrors. The third part treats the acceleration of electrons by plasma turbulence and an field parallel to the magnetic field. The fourth part considers the electron-cyclotron maser instability in a high temperature plasma with a loss-cone distribution function. In the fifth part, the spectral emissivity of spontaneous synchrotron radiation at the fundamental and harmonics of the cyclotron frequency is calculated using the complete relativistic resonance condition. In the sixth part, the stochastic acceleration of ions by a large amplitude ion cyclotron wave is discussed.

Subject Categories:

  • Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE