Characterization and modeling of plasma sheath in 2.45 GHz hydrogen ECR ion sources
Source abstract
Abstract
In this article, we present a multi-fluid numerical model developed for application on electron cyclotron resonance ion sources (ECRIS). The 1D-model is matured to compute the density of the ion species in the plasma sheath in the presence of an inhomogeneous magnetic field of a 2.45 GHz ECRIS. The multi-fluid model in cylindrical coordinates is focused on solving the continuity and momentum equations of hydrogen plasma particles to characterize their sheath properties. In addition, 28 important processes, including volume and surface collisions, have been included in the COMSOL Multiphysics package to simulate the ECR plasma. We study the elementary processes containing electron–atom, electron–molecule, atom–molecule, molecule–molecule, and particle–wall interactions. Then, the results of the model and the simulation of a 2D-hydrogen plasma are reported, and future perspectives are discussed throughout the paper.
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Research context
OpenAlex topics: Particle accelerators and beam dynamics · Plasma Diagnostics and Applications · Magnetic confinement fusion research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Radiation Application, Faculty of Nuclear Engineering, Shahid Beheshti University 1 , P.O. Box 19839-69411 Tehran, Iran
School of Physics and Accelerators, Nuclear Science and Technology Research Institute 2 , P.O. Box 14395-836 Tehran, Iran
INFN - Laboratori Nazionali del Sud 3 , Via S. Sofia 62, 95125 Catania, Italy
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