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Electron temperature determination from neutron rate measurements for NBI-heated high-density TEXTOR plasmas

B Wolle, S Helbing, A Krämer-Flecken, G Bonheure, G Van Wassenhove1997年Plasma Physics and Controlled FusionIF 2.2出版社

A fast computer code for the simulation and analysis of neutron signals is used to map out parameter ranges where relevant plasma parameters can be determined from neutron rate measurements of plasmas heated by neutral beam injection (NBI). The comparison with experimental values from the TEXTOR database identifies a small number of NBI-heated high-density discharges where the measurement of the central electron temperature by using second harmonic ECE emission becomes in principle impossible although its determination by using third harmonic emission is possible. The calculations show that the electron temperatures can be determined with sufficient accuracy from neutron emission rate measurements. As an example of this novel application, core electron temperatures are evaluated for TEXTOR discharges.

日本語訳

高速コンピュータコードによる中性子信号のシミュレーションと解析を用いて、中性子ビーム入射(NBI)により加熱されたプラズマの中性子率測定から関連するプラズマパラメータを決定できるパラメータ範囲をマッピングする。TEXTORデータベースの実験値との比較により、NBI加熱された高密度放電のうち少数のケースでは、第2高調波ECEを用いた中心電子温度の測定が原理的に不可能となるが、第3高調波ECEを用いれば可能となることが特定される。計算により、中性子率測定から電子温度を十分な精度で決定できることが示される。この新規応用の例として、TEXTOR放電におけるコア電子温度が評価される。

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textor高精度(タイトル一致)

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Neutral beam injectionTEXTOR
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