| Autor: |
Ciavola, G., Barbarino, S., Catalano, R. S., Celona, L., Consoli, F., Gammino, S., Maimone, F., Mascali, D., Tumino, L. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 9/15/2007, Vol. 933 Issue 1, p497-500, 4p, 1 Diagram, 2 Graphs |
| Abstrakt: |
A number of phenomena related to the electron cyclotron resonance ion sources (ECRIS) has been better understood recently by means of the improvement of comprehension of the coupling mechanism between microwave generators and ECR plasma. In particular, the two frequency heating and the frequency tuning effect, that permit a remarkable increase of the current for the highest charge states ions, can be explained in terms of modes excitation in the cylindrical cavity of the plasma chamber. Calculations based on this theoretical approach have been performed, and the major results will be presented. It will be shown that the electric field pattern completely changes for a few MHz frequency variations and the changes in ECRIS performances can be correlated to the efficiency of the power transfer between electromagnetic field and plasma. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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