Diagnostics of highly charged plasmas with multicomponent 1+ ion injection
Luntinen, M., Toivanen, V., Koivisto, H., Angot, J., Thuillier, T., Tarvainen, O., & Castro, G. (2022). Diagnostics of highly charged plasmas with multicomponent 1+ ion injection. Physical Review E, 106(5), Article 055208. https://doi.org/10.1103/PhysRevE.106.055208
Published in
Physical Review EAuthors
Date
2022Copyright
©2022 American Physical Society
We establish multicomponent 1+ injection into a charge breeder electron cyclotron resonance ion source and an associated computational procedure as a noninvasive probe of the electron density ne, average electron energy ⟨Ee⟩, and the characteristic times of ionization, charge exchange, and ion confinement of stochastically heated, highly charged plasma. Multicomponent injection allows refining the ne, ⟨Ee⟩ ranges, reducing experimental uncertainty. Na/K injection is presented as a demonstration. The ⟨Ee⟩ and ne of a hydrogen discharge are found to be 600+600−300eV and 8+8−3×1011cm−3, respectively. The ionization, charge exchange, and confinement times of high charge state alkali ions are on the order of 1 ms–10 ms.
Publisher
American Physical Society (APS)ISSN Search the Publication Forum
2470-0045Keywords
Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/164832520
Metadata
Show full item recordCollections
Related funder(s)
Research Council of FinlandFunding program(s)
Academy Project, AoFAdditional information about funding
We acknowledge grants of computer capacity from the Finnish Grid and Cloud Infrastructure [39] and support of the Academy of Finland Project funding (Grant No. 315855).License
Related items
Showing items with similar title or keywords.
-
The effects of electron energy distribution and ionization cross section uncertainty on charge breeder ion source diagnostics with pulsed 1+ injection
Luntinen, M.; Angot, J.; Koivisto, H.; Tarvainen, O.; Thuillier, T.; Toivanen, V. (AIP Publishing, 2023)The consecutive transients (CT) method is a plasma diagnostic technique of charge breeder electron cyclotron resonance ion source plasmas. It is based on the short-pulse injection of singly charged ions and the measurement ... -
VUV-diagnostics of low temperature hydrogen plasmas
Komppula, Jani (University of Jyväskylä, 2015) -
Characteristic Kα emission of electron cyclotron resonance ion source plasmas
Sakieldien, Moenir (University of Jyväskylä, 2018)This thesis presents the results of an investigation of the volumetric Kα emission rate/inner shell ionization rate from an Electron Cyclotron Resonance Ion Source (ECRIS) plasma tuned predominantly for high charge state ... -
Plasma diagnostic tools for ECR ion sources : What can we learn from these experiments for the next generation sources
Tarvainen, O.; Kalvas, T.; Koivisto, H.; Kronholm, R.; Marttinen, M.; Sakildien, M.; Toivanen, V.; Izotov, I.; Skalyga, V.; Angot, J. (American Institute of Physics, 2019)The order-of-magnitude performance leaps of ECR ion sources over the past decades result from improvements to the magnetic plasma confinement, increases in the microwave heating frequency, and techniques to stabilize the ... -
Time resolved measurements of hydrogen ion energy distributions in a pulsed 2.45 GHz microwave plasma
Megía-Macías, A.; Cortázar, O. D.; Tarvainen, Olli; Koivisto, Hannu (AIP Publishing LLC, 2017)A plasma diagnostic study of the Ion Energy Distribution Functions (IEDFs) of H+, H+2H2+, and H+3H3+ ions in a 2.45 GHz hydrogen plasma reactor called TIPS is presented. The measurements are conducted by using a Plasma Ion ...