Full-wave calculations of the O-X-B mode conversion scenario in the RFX-mod reversed field pinch device

A. Köhn, R. Bilato, F. Volpe, R. Paccagnella, D. Farina

Research output: Contribution to conferencePaper

Abstract

The possibility of coupling electron Bernstein waves (EBW) to the overdense plasma in RFX-mod has been explored. A frequency of 28 GHz has been chosen due to the plasma parameters and the commercial availability of this frequency. A two dimensional full-wave code has been used to model the O-X-B mode conversion process in which an incident O-mode is first converted to an X-mode and then to an EBW. Parameter studies have been carried out to optimise the mode-conversion efficiency. The maximum conversion efficiency for optimal launching conditions amounts to 56% for a single pass. The vacuum vessel has been included in the full-wave calculations to address the effects of multiple reflections between the vessel wall and the plasma boundary. A significant increase in conversion efficiency is observed as a result. © 2009 American Institute of Physics.
Original languageEnglish
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event18th Topical Conference on Radio Frequency Power in plasmas - , Belgium
Duration: 1 Jan 2009 → …

Conference

Conference18th Topical Conference on Radio Frequency Power in plasmas
CountryBelgium
Period1/1/09 → …

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Köhn, A., Bilato, R., Volpe, F., Paccagnella, R., & Farina, D. (2009). Full-wave calculations of the O-X-B mode conversion scenario in the RFX-mod reversed field pinch device. Paper presented at 18th Topical Conference on Radio Frequency Power in plasmas, Belgium. https://doi.org/10.1063/1.3273794