ICRF Plasma Production with the W7-X Like Antenna in the Uragan-2M Stellarator Article Swipe

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Stellarator Plasma Cyclotron Antenna (radio) Physics Atomic physics Harmonic Harmonics Materials science Nuclear physics Electrical engineering Acoustics Engineering Voltage Quantum mechanics

Yu.V. Kovtun , V.Е. Moiseenko , Alexei V. LOZIN , R. Pavlichenko , A.N. Shapoval , Liudmila I. GRIGOR'EVA , D.I. Baron , M.M. Kozulya , Sergii M. MAZNICHENKO , V.B. Korovin , E.D. Kramskoy , Mykola V. ZAMANOV , Yevgen V. SIUSKO , Aleksandr Yu. KRASIUK , V.S. Romanov , I.E. Garkusha , T. Wauters , A. Alonso , R. Brakel , A. Dinklage , D. Hartmann , Y. Kazakov , H. P. Laqua , S. Lazerson , Josef ONGENA , H. Thomsen , G. Fuchert , T. Stange , S. Kamio ·

YOU? · · 2022 · Open Access · · DOI: https://doi.org/10.1585/pfr.17.2402034 · OA: W4280511413

The results of the plasma start-up with ICRH of U-2M RF discharges in H2+He mixture with newly implemented controlled gas H2 concentration are presented. The W7-X like ICRH antenna operated in monopole phasing with applied RF power of ∼ 100 kW. We investigated plasma start-up in the pressure range p = 6×10−4 - 9 × 10−2 Pa. Plasma production with an average density of up to Ne ∼ 1013 cm−3 was observed at frequencies the fundamental harmonic of the hydrogen cyclotron frequency.