skip to main content

Title: Non-modal analysis of the diocotron instability for cylindrical geometry with conducting boundary

The temporal evolution of the linear diocotron instability of a cylindrical annular plasma column surrounded by a conducting boundary has been investigated by using the methodology of the cylindrical shearing modes. The linear solution of the initial and boundary-value problems is obtained which is valid for any time at which linear effects dominate. The solution reveals that the initial perturbations of the electron density pass through the stage of the non-modal evolution when the perturbation experiences spatio-temporal distortion pertinent to the considered geometry of the electron column. The result is confirmed by a two-dimensional cylindrical particle-in-cell simulation.
Authors:
; ; ;  [1] ;  [2] ;  [3]
  1. Department of Electrical Engineering, Pusan National University, Busan 609–735 (Korea, Republic of)
  2. V.N. Karazin Kharkiv National University, 61108 Kharkiv (Ukraine)
  3. (Ukraine)
Publication Date:
OSTI Identifier:
22252849
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 5; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BOUNDARY-VALUE PROBLEMS; CYLINDRICAL CONFIGURATION; DISTURBANCES; ELECTRON DENSITY; GEOMETRY; PERTURBATION THEORY; PLASMA; PLASMA INSTABILITY; SIMULATION; TWO-DIMENSIONAL CALCULATIONS