Local plasma diagnostics research on Electron Cyclotron Resonance Ion Source

Kenéz, L. and Karácsony, J. and Kitagawa, A. and Muramatsu, M. and Biri, S. and Valek, A. (2005) Local plasma diagnostics research on Electron Cyclotron Resonance Ion Source. In: British-Romanian-Hungarian N+N+N Workshop for Young Researchers On Plasma- and Astrophysics: from laboratory to outer space Edited by I. Ballai, E. Forgács-Dajka, A. Marcu and K. Petrovay. Publications of the Astronomy Department of the Eötvös University (15). ELTE Sokszorosítóüzeme, Budapest, pp. 135-145.

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Abstract

Electron Cyclotron Resonance Ion Sources (ECRIS) are important tools of the atomic physics research, which find applications in the field of physics, medicine etc. The most important part of the ion sources is the complex plasma, which determines their performance but is still less known. Therefore we need to make efforts to find out more about them to improve ion sources. For this reason we started local plasma diagnostics research project, at the ATOMKI-ECRIS in Hungary and continued our work at the NIRS-ECRIS in Japan. In the framework of the project we studied the cold plasma of the source, developed a new method to evaluate the ion current flowing to the probe that is useful to calculate local electron density.We designed a mechanism to position the probe and determined various electron density distributions. Using emitting probes we determined the plasma potential and its distribution.

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