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Absorption efficiency of the second harmonic ECRH waves and comparative plasma transport simulation in the TJ-II stellarator and T-10 tokamak

Yu N Dnestrovskij, A V Melnikov, D Lopez-Bruna, A Yu Dnestrovskij, S V Cherkasov, A V Danilov, L G Eliseev, P O Khabanov, S E Lysenko, D Yu Sychugov2023年Plasma Physics and Controlled FusionIF 2.2出版社

The concept of equivalent tokamak and stellarator discharges with the same electron and ion temperatures and with full absorption of the injected ECRH power was introduced in Dnestrovskij et al (2021 Plasma Phys. Control. Fusion63 055012). In the present paper, the concept of the discharges equivalence is extended to the case of partial ECRH power absorption. The conditions of discharges equivalence for this case are formulated. It is shown that in equivalent discharges not only the electron temperatures, but also the absorbed powers are the same. Examples of equivalent experimental discharges of the TJ-II stellarator and simulated discharges of the T-10 tokamak with partial ECRH power absorption are studied. The absorbed ECRH power and energy confinement time are found for TJ-II low-density shots heated with ECRH only.

日本語訳

等価トカマクとステラレーター放電の概念は、電子温度とイオン温度が同じで、注入されたECRHパワーが完全に吸収される場合について、Dnestrovskijら(2021 Phys. Plasma Control. Fusion 63 055012)によって導入された。本論文では、この放電等価性の概念を、ECRHパワーが部分的にしか吸収されない場合に拡張する。この場合の放電等価性の条件を定式化する。等価な放電では、電子温度だけでなく吸収パワーも同じであることが示される。ECRHのみで加熱されるTJ-IIの低密度ショットについて、等価な実験放電とT-10トカマクのシミュレーション放電の例を調べる。TJ-IIの低密度ショットについて、吸収されたECRHパワーとエネルギー閉じ込め時間を求める。

装置

tj-ii高精度(タイトル一致)

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StellaratorElectron cyclotron heatingTJ-II
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