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Effect of electric field emission on charging of dust particles in a plasma

Published online by Cambridge University Press:  17 July 2009

MAHENDRA SINGH SODHA ,
AMRIT DIXIT  and
GYAN PRAKASH
MAHENDRA SINGH SODHA
Affiliation:
Disha Institute of Management and Technology, Satya Vihar, Vidhan Sabha-Chandrakhuri Marg, Mandir Hasaud, Raipur 492101, Chhattisgarh, India (msodha@rediffmail.com)
AMRIT DIXIT
Affiliation:
Disha Institute of Management and Technology, Satya Vihar, Vidhan Sabha-Chandrakhuri Marg, Mandir Hasaud, Raipur 492101, Chhattisgarh, India (msodha@rediffmail.com)
GYAN PRAKASH
Affiliation:
Amity School of Engineering and Technology, Amity University, Lucknow 226010, Uttar Pradesh, India
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Abstract

The authors have considered the charging of spherical particles in a plasma, taking into account the electric field emission of electrons from the dust particles and the change in the electron/ion densities in the plasma. The dependence of the charge of a particle and electron/ion densities on the radius and number of dust particles and the density of electrons/ions and the temperature in the undisturbed plasma has been studied numerically without and with the inclusion of the electric field emission of electrons from the particles. It is seen that both the electric field emission and the electron/ion kinetics significantly affect the charging process.

Type
Papers
Information
Journal of Plasma Physics , Volume 76 , Issue 2 , April 2010 , pp. 159 - 168
Copyright
Copyright © Cambridge University Press 2009

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