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Recent fully non-inductive operation results in Tore Supra with 6 min, 1 GJ plasma discharges

D. van Houtte, G. Martin, A. Bécoulet, J. Bucalossi, G. Giruzzi, G.T. Hoang, Th. Loarer, B. Saoutic, (on behalf of the Tore Supra Team)2004年被引用 147Nuclear FusionIF 3出版社

The experimental programme of Tore Supra, the largest superconducting tokamak in the world (a = 0.72 m, R = 2.4 m, Ip < 1.7 MA, BT < 4.5 T) was devoted in 2003 to studying the heat removal capability and particle exhaust in steady-state fully non-inductive current drive discharges simultaneously. This required both advanced technology integration and steady-state real-time plasma control. In particular, an improvement of the plasma position to within a range of few millimetres, and new real-time controls of radio frequency power and various actuators built around a shared memory network, have allowed Tore Supra to access a powerful steady-state regime with an improved safety level for the actively cooled plasma facing components. Feedback controlled fully non-inductive plasma discharges have been sustained in a steady-state regime for up to 6 min with a new world record for injected–extracted energy exceeding 1 GJ. Experimental results and an analysis of the physics involved in these discharges are reported and discussed.

日本語訳

Tore Supra(世界最大の超伝導トカマク、a = 0.72 m、R = 2.4 m、Ip < 1.7 MA、BT < 4.5 T)の2003年の実験プログラムは、定常状態の完全非誘導電流駆動放電における熱除去能力と粒子排気の研究に充てられた。これには、先進的な技術統合と、定常状態でのリアルタイムプラズマ制御の両方が必要であった。特に、プラズマ位置制御の改善(数ミリメートル範囲内への精度向上)、および共有メモリネットワークを基盤とした高周波電力と各種アクチュエータの新しいリアルタイム制御により、Tore Supraは、能動冷却されたプラズマ対向機器に対する安全性を向上させた強力な定常状態運転領域へのアクセスが可能となった。フィードバック制御による完全非誘導プラズマ放電は、最大6分間にわたり定常状態で維持され、投入・抽出エネルギーが1 GJを超える新記録を達成した。これらの放電に関わる実験結果と物理の解析について報告し、考察する。

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Tore Supra
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