High stability microwave discharge ion sources

A new plasma heating mechanism for Microwave Discharge Ion Sources (MDIS) was discovered. Unprecedented beam stability was observed during the commissioning of the Proton Source for the European Spallation Source (PS-ESS) where several thousand source configurations were tested using a custom softwa...

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Detalles Bibliográficos
Autores principales: Neri, L., Celona, L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8866414/
https://www.ncbi.nlm.nih.gov/pubmed/35197487
http://dx.doi.org/10.1038/s41598-022-06937-7
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author Neri, L.
Celona, L.
author_facet Neri, L.
Celona, L.
author_sort Neri, L.
collection PubMed
description A new plasma heating mechanism for Microwave Discharge Ion Sources (MDIS) was discovered. Unprecedented beam stability was observed during the commissioning of the Proton Source for the European Spallation Source (PS-ESS) where several thousand source configurations were tested using a custom software tool. Data analysis and plasma simulation revealed that the new behaviour is generated by a completely new plasma heating schema activated by a precise magnetic configuration peculiarity. The stability showed in this configuration, denominated High Stability Microwave Discharge Ion Source (HSMDIS), is excellent and the emittance of the produced beam is lower than produced by standard MDIS configuration. High linearity between power and beam current was observed making easier the use of the source. This new mode of operation can be easily implemented in all existing sources.
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spelling pubmed-88664142022-02-25 High stability microwave discharge ion sources Neri, L. Celona, L. Sci Rep Article A new plasma heating mechanism for Microwave Discharge Ion Sources (MDIS) was discovered. Unprecedented beam stability was observed during the commissioning of the Proton Source for the European Spallation Source (PS-ESS) where several thousand source configurations were tested using a custom software tool. Data analysis and plasma simulation revealed that the new behaviour is generated by a completely new plasma heating schema activated by a precise magnetic configuration peculiarity. The stability showed in this configuration, denominated High Stability Microwave Discharge Ion Source (HSMDIS), is excellent and the emittance of the produced beam is lower than produced by standard MDIS configuration. High linearity between power and beam current was observed making easier the use of the source. This new mode of operation can be easily implemented in all existing sources. Nature Publishing Group UK 2022-02-23 /pmc/articles/PMC8866414/ /pubmed/35197487 http://dx.doi.org/10.1038/s41598-022-06937-7 Text en © The Author(s) 2022, corrected publication 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Neri, L.
Celona, L.
High stability microwave discharge ion sources
title High stability microwave discharge ion sources
title_full High stability microwave discharge ion sources
title_fullStr High stability microwave discharge ion sources
title_full_unstemmed High stability microwave discharge ion sources
title_short High stability microwave discharge ion sources
title_sort high stability microwave discharge ion sources
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8866414/
https://www.ncbi.nlm.nih.gov/pubmed/35197487
http://dx.doi.org/10.1038/s41598-022-06937-7
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