skip to main content

Title: Influence of ionization on reflection of solitary waves in a magnetized plasma

The reflection of nonlinear solitary waves is studied in a nonuniform, magnetized plasma diffusing from an ionization source along the magnetic field lines. Contribution of the ionization term is included in the continuity equation. The behavior of solitary waves is governed by modified form of Korteweg–de Vries equation (called mKdV equation). In order to investigate the reflection of solitary waves, the mKdV equations for the right and left going waves are derived, and solved by finding new transformations coupled at the point of reflection, for obtaining the expression of reflection coefficient. Contrary to the case of usual inhomogeneous plasma, the present analysis shows that a combination of usual sech{sup 2} structure and tanh structure (called the tail of soliton) arises due to the influence of ionization term. Interestingly, this tailing structure disappears after the reflection of the soliton and hence, the soliton is downshifted prominently.
Authors:
;  [1] ;  [2] ;  [3]
  1. Plasma Waves and Particle Acceleration Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi 110 016 (India)
  2. Department of Physics, Janta Vedic College Baraut, Uttar Pradesh 265 001 (India)
  3. Centre for Energy Studies, Indian Institute of Technology Delhi, New Delhi 110 016 (India)
Publication Date:
OSTI Identifier:
22220580
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 9; Other Information: (c) 2013 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; CONTINUITY EQUATIONS; INHOMOGENEOUS PLASMA; ION ACOUSTIC WAVES; IONIZATION; KORTEWEG-DE VRIES EQUATION; MAGNETIC FIELDS; NONLINEAR PROBLEMS; REFLECTION; SOLITONS; TRANSFORMATIONS