skip to main content

SciTech ConnectSciTech Connect

Title: The low threshold parametric decay instabilities leading to anomalous phenomena at ECRH in toroidal devices

A possibility of 3D electron Bernstein wave trapping in intensive magnetic field aligned density fluctuation or blob in toroidal plasma is demonstrated. Semi-analytic approach for description of associated plasma cavity is developed. A mechanism of low-threshold parametric decay instability driven by 2{sup nd} harmonic extraordinary pump microwave and leading to excitation of localized electron Bernstein wave and low frequency heavily damped oscillations is proposed and analyzed.
Authors:
; ;  [1]
  1. Ioffe Physical Technical Institute of RAS, St. Petersburg (Russian Federation)
Publication Date:
OSTI Identifier:
22263851
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1580; Journal Issue: 1; Conference: 20. topical conference on radiofrequency power in plasmas, Sorrento (Italy), 25-28 Jun 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BERNSTEIN MODE; DECAY INSTABILITY; ECR HEATING; ELECTRONS; MAGNETIC FIELDS; PLASMA WAVES