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The error field correction coils on the JET machine

I. Barlow, M. Bigi, J. Bird, G. Bonizzoni, M. Williams2001年Fusion Engineering and DesignIF 1.7出版社

AbstractThe non-axisymmetric magnetic field, naturally present in every tokamak, constraints the machine operational space. A set of dedicated ‘Error Field Correction Coils’ (EFCC) is proposed for JET, which will replace the unreliable existing ‘saddle coils’. The new coils are specified to compensate the main harmonic contribution to error field induced modes. The EFCC structural design comprises a cable coil wound in a metallic casing supported on the JET iron magnetic circuit. Existing power supplies will drive the coils. The EFCC are expected to be installed in 2001 JET shutdown.

日本語訳

要約 すべてのトカマクに自然に存在する非軸対称磁場は、装置の運転領域を制約する。JET用に、信頼性の低い既存の「サドルコイル」を置き換える専用の「誤差磁場補正コイル」(EFCC)一式が提案されている。新しいコイルは、誤差磁場誘起モードへの主要な高調波寄与を補償するように仕様が定められている。EFCCの構造設計は、JETの鉄磁気回路に支持された金属ケーシング内に巻かれたケーブルコイルで構成される。既存の電源がコイルを駆動する。EFCCは2001年のJETシャットダウン時に設置される予定である。

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