| Autor: |
Bobkov, Volodymyr, Bilato, Roberto, Calarco, François, Faugel, Helmut, Girka, Oleksii, Helou, Walid, Lamalle, Philippe, Maquet, Vincent, Milanesio, Daniele, Ochoukov, Roman, Polli, Vincent, Tierens, Wouter, Usoltseva, Maria, Zhang, Wei |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2023, Vol. 2984 Issue 1, p1-6, 6p |
| Abstrakt: |
Full-size 3D model of ITER ICRF antenna with 1D plasma electron density (ne) and 3D ne (from EMC3-Eirene) was simulated using the RAPLICASOL (COMSOL-based) code. Impedance matrices and coupled power agree well with TOPICA with 1D ne. Cases with 3D ne show port-to-port differences compared to 1D ne, as well as a lower (about 10%) coupled power. Efficient minimization of ITER antenna near-fields (to reduce RF sheaths by optimizing feeding) calculated by TOPICA and RAPLICASOL is possible with [0;π;π;0] (about balanced strap powers) and is even lower with [0;π;0;π] toroidal phasing (with dominant power from central straps). Lowest near-fields are with [0;π] poloidal phasing, but [0;-π/2] will be used in a load resilience setup with 3dB splitters. Under EUROfusion prospective research and development, in-port ICRF antenna concept for EU-DEMO with 8 quadruplets (4x toroidal by 2x poloidal) is considered to deliver 16.7 MW (3 antennas yielding 50 MW). Areas around the equatorial port and cut-ins in breeding blankets are used, with emphasis on [0;π;π;0] optimization. High-resolution RAPLICASOL calculations with full ne profile (without imposing a minimum ne value) shed light on field distribution with propagative slow wave in detailed antenna geometry. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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