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Total secondary emission effect on the complex plasma sheath with superextensive electrons

Published online by Cambridge University Press:  24 October 2024

Z. Eljabiri ,
O. El Ghani ,
I. Driouch Open the ORCID record for I. Driouch [Opens in a new window]  and
H. Chatei
Z. Eljabiri
Affiliation:
Experimentation and Modelling in Mechanics and Energy Systems Team, Département de Génie Civil, Energétique Et Environnement, National School of Applied Sciences, University Abdelmalek Assaadi, BP 03, Ajdir Al-Hoceima, Morocco
O. El Ghani
Affiliation:
Experimentation and Modelling in Mechanics and Energy Systems Team, Département de Génie Civil, Energétique Et Environnement, National School of Applied Sciences, University Abdelmalek Assaadi, BP 03, Ajdir Al-Hoceima, Morocco
I. Driouch*
Affiliation:
Experimentation and Modelling in Mechanics and Energy Systems Team, Département de Génie Civil, Energétique Et Environnement, National School of Applied Sciences, University Abdelmalek Assaadi, BP 03, Ajdir Al-Hoceima, Morocco
H. Chatei
Affiliation:
Laboratory of Physics of Matter and Radiations, Department of Physics, Faculty of Science, University Mohammed I, B.P. 717, 60000 Oujda, Morocco
*
†Email address for correspondence: [email protected]
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Abstract

This study investigates the dynamics of various particles within the plasma sheath, focusing on the influence of secondary emissions from charged dust particles. The research concentrates on backscattered electron emission (BEE), inelastic reflection emission (IRE) and true-secondary electron emission (TEE) as key contributors to the behaviour of dust particles within the plasma sheath. Employing the semi-empirical model of Furman and Pivi (F-P model), the study defines the total emission of secondary electrons (EES), comprising these three types. The analysis aims to enhance our understanding of the complex interplay between secondary emission phenomena and the dynamics of charged particles within the plasma sheath, contributing valuable insights to the field. Furthermore, a comparative study has been conducted between the results obtained from the emission of secondary electrons according to the Sternglass theory and the emission of secondary electrons obtained using the F-P model. It is observed that the secondary electron emission (SEE) from the dust, based on the F-P model, demonstrates more pronounced effects on the sheath characteristics, particularly when considering lower values of the superextensive electron parameter ‘$q$’.

Keywords

dusty plasmasplasma sheathsplasma simulation
Type
Research Article
Information
Journal of Plasma Physics , Volume 90 , Issue 5 , October 2024 , 905900506
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Copyright
Copyright © The Author(s), 2024. Published by Cambridge University Press

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