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High-Efficiency Plasma Source Using a Magnetic Mirror Trap for Miniature-Ion Pumps
In this study, we design a highly efficient plasma source using a magnetic mirror trap with two opposing permanent magnets for a miniature high-efficiency ion pump. First, we simulated the distribution of the magnetic field line formed by the proposed magnetic mirror configuration. By optimizing the...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9865766/ https://www.ncbi.nlm.nih.gov/pubmed/36679836 http://dx.doi.org/10.3390/s23021040 |
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author | Kurashima, Yuichi Motomura, Taisei Yanagimachi, Shinya Matsumae, Takashi Watanabe, Mitsuhiro Takagi, Hideki |
author_facet | Kurashima, Yuichi Motomura, Taisei Yanagimachi, Shinya Matsumae, Takashi Watanabe, Mitsuhiro Takagi, Hideki |
author_sort | Kurashima, Yuichi |
collection | PubMed |
description | In this study, we design a highly efficient plasma source using a magnetic mirror trap with two opposing permanent magnets for a miniature high-efficiency ion pump. First, we simulated the distribution of the magnetic field line formed by the proposed magnetic mirror configuration. By optimizing the distance between two opposing permanent magnets and size of these magnets, a magnetic mirror ratio value of 27 could be obtained, which is an electron confinement efficiency of over 90%. We also conducted an experiment on a high-efficiency discharge plasma source for a miniature ion pump using an optimized magnetic circuit. As a result, we revealed that the proposed magnetic circuit has a pronounced effect on plasma generation, particularly in the high-vacuum region. |
format | Online Article Text |
id | pubmed-9865766 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-98657662023-01-22 High-Efficiency Plasma Source Using a Magnetic Mirror Trap for Miniature-Ion Pumps Kurashima, Yuichi Motomura, Taisei Yanagimachi, Shinya Matsumae, Takashi Watanabe, Mitsuhiro Takagi, Hideki Sensors (Basel) Communication In this study, we design a highly efficient plasma source using a magnetic mirror trap with two opposing permanent magnets for a miniature high-efficiency ion pump. First, we simulated the distribution of the magnetic field line formed by the proposed magnetic mirror configuration. By optimizing the distance between two opposing permanent magnets and size of these magnets, a magnetic mirror ratio value of 27 could be obtained, which is an electron confinement efficiency of over 90%. We also conducted an experiment on a high-efficiency discharge plasma source for a miniature ion pump using an optimized magnetic circuit. As a result, we revealed that the proposed magnetic circuit has a pronounced effect on plasma generation, particularly in the high-vacuum region. MDPI 2023-01-16 /pmc/articles/PMC9865766/ /pubmed/36679836 http://dx.doi.org/10.3390/s23021040 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Communication Kurashima, Yuichi Motomura, Taisei Yanagimachi, Shinya Matsumae, Takashi Watanabe, Mitsuhiro Takagi, Hideki High-Efficiency Plasma Source Using a Magnetic Mirror Trap for Miniature-Ion Pumps |
title | High-Efficiency Plasma Source Using a Magnetic Mirror Trap for Miniature-Ion Pumps |
title_full | High-Efficiency Plasma Source Using a Magnetic Mirror Trap for Miniature-Ion Pumps |
title_fullStr | High-Efficiency Plasma Source Using a Magnetic Mirror Trap for Miniature-Ion Pumps |
title_full_unstemmed | High-Efficiency Plasma Source Using a Magnetic Mirror Trap for Miniature-Ion Pumps |
title_short | High-Efficiency Plasma Source Using a Magnetic Mirror Trap for Miniature-Ion Pumps |
title_sort | high-efficiency plasma source using a magnetic mirror trap for miniature-ion pumps |
topic | Communication |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9865766/ https://www.ncbi.nlm.nih.gov/pubmed/36679836 http://dx.doi.org/10.3390/s23021040 |
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