A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Diagnostic techniques of minimum-B ECR ion source plasma instabilities (2022)

Toivanen, V., Bhaskar, B. S., Izotov, I. V., Koivisto, H., & Tarvainen, O. (2022). Diagnostic techniques of minimum-B ECR ion source plasma instabilities. Review of Scientific Instruments, 93(1), Article 013302. https://doi.org/10.1063/5.0075443

JYU-tekijät tai -toimittajat

Toivanen, Ville
Subhash Bhasi Bhaskar, Bichu
Koivisto, Hannu

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Toivanen, V.; Bhaskar, B. S.; Izotov, I. V.; Koivisto, H.; Tarvainen, O.

Lehti tai sarja: Review of Scientific Instruments

ISSN: 0034-6748

eISSN: 1089-7623

Julkaisuvuosi: 2022

Ilmestymispäivä: 01.01.2022

Volyymi: 93

Lehden numero: 1

Artikkelinumero: 013302

Kustantaja: American Institute of Physics

Julkaisumaa: Yhdysvallat (USA)

Julkaisun kieli: englanti

DOI: https://doi.org/10.1063/5.0075443

Julkaisun avoin saatavuus: Ei avoin

Julkaisukanavan avoin saatavuus: 

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/79381

Tiivistelmä

The performance of a minimum-B Electron Cyclotron Resonance Ion Source (ECRIS) is traditionally quantified by measuring the beam current and quality of the extracted ion beams of different charge state ions. The stability of the extracted ion beam currents has drawn more attention recently as the technology is pushing its limits toward higher ion charge states and beam intensities. The stability of the extracted beam is often compromised by plasma instabilities manifesting themselves as rapid oscillations of the beam currents in millisecond scale. This paper focuses on practical aspects of diagnostics techniques of the instabilities, showcases examples of instability-related diagnostics signals, and links them to the plasma physics of ECR ion sources. The reviewed techniques include time-resolved microwave emission diagnostics, bremsstrahlung measurements, direct measurement of electron and ion fluxes, measurement of the ion beam energy spread, and optical emission diagnostics. We list the advantages and disadvantages of each technique and outline the development needs of further diagnostics. Finally, we discuss the implications of the instabilities in both historical and forward-looking context of ECRIS development.

YSO-asiasanat: plasmafysiikka; hiukkaskiihdyttimet; syklotronit

Liittyvät organisaatiot

Hankkeet, joissa julkaisu on tehty

OKM-raportointi: Kyllä

Raportointivuosi: 2022

JUFO-taso: 1