TOPICA is an innovative tool for the simulation of plasma facing antennas that incorporates commercial-grade 3D graphic interfaces and an accurate description of the plasma. The coaxial feeding line or waveguide are modeled as such; computation and visualization of relevant parameters (input scattering parameters, current and field distributions, etc.) complete the suite. The approach to the problem is based on an integral-equation formulation for the self-consistent evaluation of the current distribution on the conductors. The environment has been subdivided in two coupled region: the plasma region and the vacuum region. The two problems are linked self-consistently by representing the field continuity in terms of equivalent (unknown) sources. In the vacuum region all the calculations are executed in the spatial domain, and this allows triangular-facet description of the arbitrarily shaped conductors and associated currents; in the plasma region a spectral representation of the fields is used, which allows to enter the plasma effect via impedance matrix. This work is devoted to an extensive set of comparisons between system parameters measured during operation and simulated. The comparison demonstrates a very good agreement, leading to a validation of TOPICA as a reliable predictive tool.

A Predictive Simulation Tool for Plasma Facing Antennas / Maggiora, Riccardo; Lancellotti, Vito; Milanesio, Daniele; V., Kyrytsya; Vecchi, Giuseppe; A., Parisot; S. J., Wukitch. - In: BULLETIN OF THE AMERICAN PHYSICAL SOCIETY. - ISSN 0003-0503. - 50:(2005). (Intervento presentato al convegno 47th Annual Meeting of the Division of Plasma Physics tenutosi a Denver, Colorado, USA nel 24–28 October 2005).

A Predictive Simulation Tool for Plasma Facing Antennas

MAGGIORA, Riccardo;LANCELLOTTI, Vito;MILANESIO, DANIELE;VECCHI, Giuseppe;
2005

Abstract

TOPICA is an innovative tool for the simulation of plasma facing antennas that incorporates commercial-grade 3D graphic interfaces and an accurate description of the plasma. The coaxial feeding line or waveguide are modeled as such; computation and visualization of relevant parameters (input scattering parameters, current and field distributions, etc.) complete the suite. The approach to the problem is based on an integral-equation formulation for the self-consistent evaluation of the current distribution on the conductors. The environment has been subdivided in two coupled region: the plasma region and the vacuum region. The two problems are linked self-consistently by representing the field continuity in terms of equivalent (unknown) sources. In the vacuum region all the calculations are executed in the spatial domain, and this allows triangular-facet description of the arbitrarily shaped conductors and associated currents; in the plasma region a spectral representation of the fields is used, which allows to enter the plasma effect via impedance matrix. This work is devoted to an extensive set of comparisons between system parameters measured during operation and simulated. The comparison demonstrates a very good agreement, leading to a validation of TOPICA as a reliable predictive tool.
2005
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1678083
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