Plasma-Surface Interactions Within Helicon Plasma Sources

Helicon plasma sources do not require electrodes or grids directly immersed in the plasma, and also present an axial magnetic field confining the plasma discharge. These factors are believed to provide them with long operational lifetimes because of the reduced potential for surface etching. The phy...

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Main Authors: Juan I. Del Valle, Franklin R. Chang Diaz, Víctor H. Granados
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-04-01
Series:Frontiers in Physics
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fphy.2022.856221/full
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author Juan I. Del Valle
Juan I. Del Valle
Franklin R. Chang Diaz
Víctor H. Granados
Víctor H. Granados
author_facet Juan I. Del Valle
Juan I. Del Valle
Franklin R. Chang Diaz
Víctor H. Granados
Víctor H. Granados
author_sort Juan I. Del Valle
collection DOAJ
description Helicon plasma sources do not require electrodes or grids directly immersed in the plasma, and also present an axial magnetic field confining the plasma discharge. These factors are believed to provide them with long operational lifetimes because of the reduced potential for surface etching. The physics of helicon waves, cylindrical magnetized plasmas, sheaths, and plasma-surface interactions are discussed in the context of this claim. Practical implementation aspects are also reviewed, along with relevant experimental results. It is shown that understanding the distribution of ion density within the source, the presence of induced potentials in its surfaces, and the physics of low-energy sputtering reactions is essential to properly model erosion phenomena within helicons, and consequently predict their performance in practical applications.
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spelling doaj.art-ab8c2eb24797481185a069f84c785f2a2022-12-22T00:09:56ZengFrontiers Media S.A.Frontiers in Physics2296-424X2022-04-011010.3389/fphy.2022.856221856221Plasma-Surface Interactions Within Helicon Plasma SourcesJuan I. Del Valle0Juan I. Del Valle1Franklin R. Chang Diaz2Víctor H. Granados3Víctor H. Granados4Ad Astra Rocket Company Costa Rica, Liberia, Costa RicaDoctorado en Ciencias Naturales para el Desarrollo (DOCINADE) Program, Instituto Tecnológico de Costa Rica, Universidad Nacional de Costa Rica, Universidad Nacional a Distancia de Costa Rica, Cartago, Costa RicaAd Astra Rocket Company Costa Rica, Liberia, Costa RicaDoctorado en Ciencias Naturales para el Desarrollo (DOCINADE) Program, Instituto Tecnológico de Costa Rica, Universidad Nacional de Costa Rica, Universidad Nacional a Distancia de Costa Rica, Cartago, Costa RicaUniversidad Nacional, Heredia, Costa RicaHelicon plasma sources do not require electrodes or grids directly immersed in the plasma, and also present an axial magnetic field confining the plasma discharge. These factors are believed to provide them with long operational lifetimes because of the reduced potential for surface etching. The physics of helicon waves, cylindrical magnetized plasmas, sheaths, and plasma-surface interactions are discussed in the context of this claim. Practical implementation aspects are also reviewed, along with relevant experimental results. It is shown that understanding the distribution of ion density within the source, the presence of induced potentials in its surfaces, and the physics of low-energy sputtering reactions is essential to properly model erosion phenomena within helicons, and consequently predict their performance in practical applications.https://www.frontiersin.org/articles/10.3389/fphy.2022.856221/fullhelicon plasmasurfaceerosionsputteringinteractions
spellingShingle Juan I. Del Valle
Juan I. Del Valle
Franklin R. Chang Diaz
Víctor H. Granados
Víctor H. Granados
Plasma-Surface Interactions Within Helicon Plasma Sources
Frontiers in Physics
helicon plasma
surface
erosion
sputtering
interactions
title Plasma-Surface Interactions Within Helicon Plasma Sources
title_full Plasma-Surface Interactions Within Helicon Plasma Sources
title_fullStr Plasma-Surface Interactions Within Helicon Plasma Sources
title_full_unstemmed Plasma-Surface Interactions Within Helicon Plasma Sources
title_short Plasma-Surface Interactions Within Helicon Plasma Sources
title_sort plasma surface interactions within helicon plasma sources
topic helicon plasma
surface
erosion
sputtering
interactions
url https://www.frontiersin.org/articles/10.3389/fphy.2022.856221/full
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