EFFECTS OF POSITRONS AND NONTHERMAL ELECTRONS ON THE ION-ACOUSTIC DOUBLE LAYERS IN WARM MULTICOMPONENT PLASMA

PDF

Published: 2021-12-23

Page: 44-60


INDRANI PAUL

Department of Physics, Jadavpur University, Kolkata-700032, India.

A. CHATTERJEE

East Kolkata Centre for Science Education and Research, P-1, B. P. Township, Kolkata-700 094, India.

S. N. PAUL *

Department of Physics, Jadavpur University, Kolkata-700032, India and East Kolkata Centre for Science Education and Research, P-1, B. P. Township, Kolkata-700 094, India.

*Author to whom correspondence should be addressed.


Abstract

The effects of isothermal positrons and nonthermal electrons on the ion-acoustic double layers in warm multicomponent plasma having positive and negative ions are studied using pseudo potential technique.. The expression of Sagdeev potential has been derived and the solution for ion-acoustic double layers has been obtained from the nonlinear equation. The profiles of double layers have been drawn taking different values of plasma parameters. It is observed that both compressive and rarefactive double layers would be excited in presence of positrons and nonthermal electrons in the plasma. The variation of amplitudes and widths of double layers have been discussed graphically for different positron density, positron temperature, nonthermal electrons, negative ion density including drift velocity of ions.

PACS Numbers: 52.35.-g . 52.35.Mw, 52.35 Sb.

Keywords: Ion acoustic wave, negative ions, sagdeev potential, double layer, positrons, nonthermal electrons


How to Cite

PAUL, I., CHATTERJEE, A., & PAUL, S. N. (2021). EFFECTS OF POSITRONS AND NONTHERMAL ELECTRONS ON THE ION-ACOUSTIC DOUBLE LAYERS IN WARM MULTICOMPONENT PLASMA. Journal of Applied Physical Science International, 13(3), 44–60. Retrieved from https://ikprress.org/index.php/JAPSI/article/view/7355

Downloads

Download data is not yet available.