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Title: Ring-beam driven maser instability for quasiperpendicular shocks

Abstract

The cyclotron maser instability is a well-known radiation emission mechanism responsible for radio emissions in magnetized planets and for laboratory microwave generation devices. The present paper discusses mechanisms and properties of cyclotron maser instability driven by a ring-beam distribution of energetic electrons with application to the quasiperpendicular collisionless shock. It is shown that the fast extraordinary and ordinary electromagnetic waves as well as slow upper-hybrid Z-mode are excited over a wide range of physical parameters. The implications of the present findings for actual applications including the coronal type II radio source are also discussed.

Authors:
; ;  [1];  [2]
  1. Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742 (United States)
  2. (China)
Publication Date:
OSTI Identifier:
20974843
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 14; Journal Issue: 2; Other Information: DOI: 10.1063/1.2437118; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BEAM-PLASMA SYSTEMS; CYCLOTRONS; ELECTRON BEAMS; MASERS; MICROWAVE RADIATION; PLASMA; PLASMA INSTABILITY; SHOCK WAVES; TAIL ELECTRONS

Citation Formats

Yoon, Peter H., Wang, C. B., Wu, C. S., and CAS Key Laboratory of Basic Plasma Physics, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026. Ring-beam driven maser instability for quasiperpendicular shocks. United States: N. p., 2007. Web. doi:10.1063/1.2437118.
Yoon, Peter H., Wang, C. B., Wu, C. S., & CAS Key Laboratory of Basic Plasma Physics, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026. Ring-beam driven maser instability for quasiperpendicular shocks. United States. doi:10.1063/1.2437118.
Yoon, Peter H., Wang, C. B., Wu, C. S., and CAS Key Laboratory of Basic Plasma Physics, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026. Thu . "Ring-beam driven maser instability for quasiperpendicular shocks". United States. doi:10.1063/1.2437118.
@article{osti_20974843,
title = {Ring-beam driven maser instability for quasiperpendicular shocks},
author = {Yoon, Peter H. and Wang, C. B. and Wu, C. S. and CAS Key Laboratory of Basic Plasma Physics, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026},
abstractNote = {The cyclotron maser instability is a well-known radiation emission mechanism responsible for radio emissions in magnetized planets and for laboratory microwave generation devices. The present paper discusses mechanisms and properties of cyclotron maser instability driven by a ring-beam distribution of energetic electrons with application to the quasiperpendicular collisionless shock. It is shown that the fast extraordinary and ordinary electromagnetic waves as well as slow upper-hybrid Z-mode are excited over a wide range of physical parameters. The implications of the present findings for actual applications including the coronal type II radio source are also discussed.},
doi = {10.1063/1.2437118},
journal = {Physics of Plasmas},
number = 2,
volume = 14,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}