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Simulations of current density profile control using lower hybrid current drive in the TdeV Tokamak

V. Fuchs, P.T. Bonoli, I.P. Shkarofsky, A. Cote, Y. Demers, C. Janicki1995年被引用 14Nuclear FusionIF 3出版社

The physics basis of a simulation model for lower hybrid current drive (LHCD) is discussed. Issues associated with LH power deposition-wave propagation, mode conversion and cut-offs in toroidal geometry, as well as linear and quasi-linear Landau damping-are analysed. A simulation model (ACCOME) is applied to the LHCD experiment now operating on the Tokamak de Varennes (TdeV). The profiles and values of density and temperature needed as inputs to ACCOME are taken from the experiment. The predictions of current density and loop voltage from ACCOME are then compared with experimental LHCD results. Possible LH current profile control experiments are also analysed for TdeV using composite LH spectra to control the location of RF power deposition. Finally the relevance of these current profile control results to future devices is discussed and an example is shown for ITER-like parameters

日本語訳

低域混成波電流駆動(LHCD)のシミュレーションモデルの物理的基礎について論じる。トロイダル幾何学における低域混成波パワー堆積、波動伝播、モード変換、カットオフ、ならびに線形および準線形ランダウ減衰に関連する問題を解析する。シミュレーションモデル(ACCOME)を、現在トカマク・ド・ヴァレンヌ(TdeV)で運転中のLHCD実験に適用する。ACCOMEへの入力として必要な密度と温度の分布および値は、実験から取得する。ACCOMEによる電流密度とループ電圧の予測を、実験によるLHCD結果と比較する。また、複合LHスペクトルを用いてRFパワー堆積位置を制御することによる、TdeVにおける可能な電流分布制御実験を解析する。最後に、これらの電流分布制御結果の将来の装置への関連性について論じ、ITER類似パラメータに対する例を示す。

装置

iter中精度(概要文一致)

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Current driveLower hybridDensity profilesLower hybrid current drive
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