Suppression of cyclotron instability in Electron Cyclotron Resonance ion sources by two-frequency heating

Journal Article · Sat Aug 15 00:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4928428· OSTI ID:22490094

Skalyga, V. ^[1]; Izotov, I.; Mansfeld, D. ^[1]; Kalvas, T.; Koivisto, H.; Komppula, J.; Kronholm, R.; Laulainen, J.; Tarvainen, O. ^[2]

---

1. Institute of Applied Physics of Russian Academy of Sciences, 46 Ulyanova st., Nizhny Novgorod (Russian Federation)
2. Department of Physics, University of Jyväskylä, Jyväskylä (Finland)

Multiple frequency heating is one of the most effective techniques to improve the performance of Electron Cyclotron Resonance (ECR) ion sources. The method increases the beam current and average charge state of the extracted ions and enhances the temporal stability of the ion beams. It is demonstrated in this paper that the stabilizing effect of two-frequency heating is connected with the suppression of electron cyclotron instability. Experimental data show that the interaction between the secondary microwave radiation and the hot electron component of ECR ion source plasmas plays a crucial role in mitigation of the instabilities.

• OSTI ID: 22490094
• Journal Information: Physics of Plasmas, Vol. 22, Issue 8; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM CURRENTS
CHARGE STATES
CYCLOTRON INSTABILITY
ECR ION SOURCES
ELECTRON CYCLOTRON-RESONANCE
EXPERIMENTAL DATA
HEATING
ION BEAMS
MICROWAVE RADIATION
PLASMA