| Title |
Automatic classification of plasma states in an ECR-type ion source |
| Authors |
- A. Fernández-Rua, I. Arredondopresenter, R. Justo, P. Usabiaga, J. Feuchtwanger
University of the Basque Country (UPV/EHU), Leioa, Spain
- J. Feuchtwanger
Ikerbasque, Bilbao, Spain
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| Abstract |
In this paper we present the methodology used to acquire the data needed to obtain and train a neural network that will be used in an ECR source to infer the state of the plasma. All the data is the combination of the control signals and a set of non-intrusive measurements that can be accessed during normal operation. For this purpose, machine learning techniques are explored. First, a set of characterisation experiments are carried out in which the state of the plasma is detected for different operating conditions that are fed to a clustering algorithm. Second, a supervised learning paradigm is adopted to train a neural network that is capable of determining the state of the plasma at different working states. The variables that are controlled are: the input RF power and gas flow, the non-intrusive measurements that are acquired are: transmitted and reflected RF power and a ccd camera is used to measure the relative luminosity of the plasma. Based on these variables the state of the plasma is determined. This methodology has been applied to the low-power ECR source in which low-density hydrogen plasmas are generated at the IZPILab laboratory of the University of the Basque Country.
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| Paper |
download MOP08.PDF [0.814 MB / 4 pages] |
| Cite |
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| Conference |
ECRIS2024 |
| Series |
International Workshop on Electron Cyclotron Resonance Ion Sources (26th) |
| Location |
Darmstadt, Germany |
| Date |
15-19 September 2024 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Fabio Maimone (GSI, Darmstadt, Germany); Volker RW Schaa (GSI, Darmstadt, Germany); Raphael Mueller (GSI, Darmstadt, Germany) |
| Online ISBN |
978-3-95450-257-8 |
| Online ISSN |
2222-5692 |
| Received |
13 September 2024 |
| Revised |
07 February 2025 |
| Accepted |
28 February 2025 |
| Issued |
25 March 2025 |
| DOI |
doi:10.18429/JACoW-ECRIS2024-MOP08 |
| Pages |
45-48 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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