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Neutral particle analyzer with feedback control system on HT-7 tokamak

Sheng Xia Liu, P.J. Qin, X.M. Zhang, B.N. Wan, HT-7 team2002年Fusion Engineering and DesignIF 1.7出版社

AbstractA neutral particle analyzer (NPA) employing a scanning mode and feedback control technique was developed and installed on the HT-7 tokamak. A horizontal view is used to measure ion temperature profiles. The spatial resolution is about 2 cm shot-by-shot. The performance of analyzer is improved greatly by employing feedback control system. The constructing of analyzer, data acquisition and the technique of feedback control are described. Preliminary measurement results in ohmic heated plasmas and lower-hybrid current drive plasmas are presented and simulated by Monte-Carlo code.

日本語訳

中性粒子分析器(NPA)は、走査モードとフィードバック制御技術を採用し、HT-7トカマクに開発・設置された。水平方向の視野を用いてイオン温度分布を測定する。空間分解能はショットごとに約2cmである。フィードバック制御システムを採用することにより、分析器の性能は大幅に向上した。分析器の構造、データ収集、およびフィードバック制御技術について説明する。オーミック加熱プラズマおよび低ハイブリッド電流駆動プラズマにおける予備的な測定結果を示し、モンテカルロコードによってシミュレーションを行った。

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