A new 18 GHz room temperature electron cyclotron resonance ion source for highly charged ion beams
Koivisto, H., Ikonen, A., Kalvas, T., Kosonen, S., Kronholm, R., Marttinen, M., Tarvainen, O., & Toivanen, V. (2020). A new 18 GHz room temperature electron cyclotron resonance ion source for highly charged ion beams. Review of Scientific Instruments, 91(2), Article 023303. https://doi.org/10.1063/1.5128860
Julkaistu sarjassa
Review of Scientific InstrumentsTekijät
Päivämäärä
2020Oppiaine
Ydin- ja kiihdytinfysiikan huippuyksikköKiihdytinlaboratorioCentre of Excellence in Nuclear and Accelerator Based PhysicsAccelerator LaboratoryTekijänoikeudet
© 2020 Author(s)
An innovative 18 GHz HIISI (Heavy Ion Ion Source Injector) room temperature Electron Cyclotron Resonance (ECR) ion source (ECRIS) has been designed and constructed at the Department of Physics, University of Jyväskylä (JYFL), for the nuclear physics program of the JYFL Accelerator Laboratory. The primary objective of HIISI is to increase the intensities of medium charge states (M/Q ≅ 5) by a factor of 10 in comparison with the JYFL 14 GHz ECRIS and to increase the maximum usable xenon charge state from 35+ to 44+ to serve the space electronics irradiation testing program. HIISI is equipped with a refrigerated permanent magnet hexapole and a noncylindrical plasma chamber to achieve very strong radial magnetic confinement with Brad = 1.42 T. The commissioning of HIISI began in Fall 2017, and in Spring 2019, it has met the main objectives. As an example, the intensity of the Xe27+ ion beam has improved from 20 μA to 230 μA. In addition, the beam intensity of the Xe44+ ion beam has exceeded the requirement set by the irradiation testing program. The performance of HIISI is comparable to superconducting ECR ion sources with the same maximum microwave frequency of 18 GHz and a total power of 3 kW. For example, Ar16+ and Xe30+ ion beam intensities of 130 μA and 106 μA, respectively, have been obtained with a total microwave power of 3 kW distributed between 18, 17.4, and 14.5 GHz frequencies. The ion beams have been extracted through an 8 mm plasma electrode aperture using 15–17 kV extraction voltage. The latest development work, extracted ion beam intensities, special features, and future prospects of HIISI are presented in this paper.
...
Julkaisija
American Institute of PhysicsISSN Hae Julkaisufoorumista
0034-6748Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/34538711
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Rahoittaja(t)
Lisätietoja rahoituksesta
This project received funding from the Academy of Finland under the Finnish Centre of Excellence Programme 2012-2017 (Nuclear and Accelerator Based Physics Research at JYFL, Project No. 213503) and from the Academy of Finland under the infrastructure funding (Grant No. 273526). This work was also funded by the European Space Research and Technology Centre, European Space Agency, under ESA/GSTP ESTEC/Contract No. 4000112736/14/NL/PA. ...Lisenssi
Samankaltainen aineisto
Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.
-
Ion source and low energy beam transport prototyping for a single-ended heavy ion ToF-ERDA facility
Tarvainen, Olli; Kalvas, Taneli; Toivanen, Ville; Kosonen, Sami; Koivisto, Hannu; Hill, Clive; Bainbridge, Alex; Hinton, Alex; Shepherd, Ben; Faircloth, Dan (Elsevier BV, 2023)We present the status of the ion source and low energy beam transport prototyping activities for a heavy ion time-of-flight elastic recoil detection analysis (ToF-ERDA) equipment, designed to accelerate a flux of 1–10 ... -
Slit extraction and emittance results of a permanent magnet minimum-B quadrupole electron cyclotron resonance ion source
Kosonen, Sami; Kalvas, Taneli; Koivisto, Hannu; Tarvainen, Olli; Toivanen, Ville (Elsevier, 2024)We present an experimental and simulation study of high charge state ion beams produced with a permanent magnet electron cyclotron resonance ion source (ECRIS) with minimum-B quadrupole magnetic field topology and slit ... -
Influence of axial mirror ratios on the kinetic instability threshold in electron cyclotron resonance ion source plasma
Toivanen, V.; Bhaskar, B. S.; Koivisto, H.; Maunoury, L.; Tarvainen, O.; Thuillier, T. (American Institute of Physics, 2022)Electron Cyclotron Resonance (ECR) ion source plasmas are prone to kinetic instabilities. The onset of the instabilities manifests as emission of microwaves, bursts of electrons expelled from the plasma volume, and the ... -
Quasi-periodical kinetic instabilities in minimum-B confined plasma
Bhaskar, B. S.; Koivisto, H.; Tarvainen, O.; Thuillier, T.; Toivanen, V. (AIP Publishing, 2022)We present the results of an experimental investigation of quasi-periodical kinetic instabilities exhibited by magnetically confined electron cyclotron resonance heated plasmas. The instabilities were detected by measuring ... -
Phase-Imaging Ion-Cyclotron-Resonance technique at the JYFLTRAP double Penning trap mass spectrometer
Nesterenko, Dmitrii; Eronen, Tommi; Kankainen, Anu; Canete, Laetitia; Jokinen, Ari; Moore, Iain; Penttilä, Heikki; Rinta-Antila, Sami; de Roubin, Antoine; Vilén, Markus (Springer, 2018)The Phase-Imaging Ion-Cyclotron-Resonance (PI-ICR) technique has been commissioned at the JYFLTRAP double Penning trap mass spectrometer. This technique is based on projecting the ion motion in the Penning trap onto a ...
Ellei toisin mainittu, julkisesti saatavilla olevia JYX-metatietoja (poislukien tiivistelmät) saa vapaasti uudelleenkäyttää CC0-lisenssillä.