A4 Artikkeli konferenssijulkaisussa
Gas mixing and double frequency operation of the permanent magnet quadrupole minimum-B electron cyclotron resonance ion source CUBE-ECRIS (2024)
Toivanen, V., Kalvas, T., Koivisto, H., Kosonen, S., & Tarvainen, O. (2024). Gas mixing and double frequency operation of the permanent magnet quadrupole minimum-B electron cyclotron resonance ion source CUBE-ECRIS. In 20th International Conference on Ion Sources (Article 012047). IOP Publishing. Journal of Physics : Conference Series, 2743. https://doi.org/10.1088/1742-6596/2743/1/012047
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: Toivanen, Ville; Kalvas, Taneli; Koivisto, Hannu; Kosonen, Sami; Tarvainen, Olli
Emojulkaisu: 20th International Conference on Ion Sources
Konferenssi:
- International Conference on Ion Sources
Konferenssin paikka ja aika: Victoria, BC, Canada, 17.-22.9.2023
Lehti tai sarja: Journal of Physics : Conference Series
ISSN: 1742-6588
eISSN: 1742-6596
Julkaisuvuosi: 2024
Ilmestymispäivä: 01.05.2024
Sarjan numero: 2743
Artikkelinumero: 012047
Kustantaja: IOP Publishing
Julkaisumaa: Britannia
Julkaisun kieli: englanti
DOI: https://doi.org/10.1088/1742-6596/2743/1/012047
Julkaisun avoin saatavuus: Avoimesti saatavilla
Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/94947
Tiivistelmä
CUBE-ECRIS is a recently commissioned permanent magnet electron cyclotron resonance (ECR) ion source developed at the university of Jyväskylä accelerator laboratory. The special features of the new ion source design include an unconventional quadrupole minimum-B magnetic field structure and a slit beam extraction system necessitated by the line-shaped plasma loss fluxes. Gas mixing and double frequency operation are widely used methods to optimize high charge state ion production of conventional ECR ion sources. The work presented here demonstrates the applicability of these methods for boosting the high charge state beam currents of argon, krypton and xenon extracted from CUBE-ECRIS. Oxygen and helium were used as mixing gases and microwave frequencies between 10 and 11 GHz were used for single and double frequency operation. Gas mixing has a strong impact on the high charge state beam currents. For example, the highest observed charge state increased from 15+ to 19+ for krypton and from 16+ to 23+ for xenon with oxygen gas mixing. Double frequency operation provides an additional performance improvement, for example the currents of argon 9+ and 11+ beams, produced with gas mixing, increased 30% and 100% in double frequency operation at the same total power.
YSO-asiasanat: plasmafysiikka; syklotronit
Liittyvät organisaatiot
Hankkeet, joissa julkaisu on tehty
- Magneettikenttärakenteen vaikutus ECR-ionilähteen suorituskykyyn
- Koivisto, Hannu
- Suomen Akatemia
OKM-raportointi: Kyllä
Alustava JUFO-taso: 1