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Multipoint vessel-temperature monitoring system for TPE-RX

Y Yagi, H Sakakita, H Koguchi, S Sekine1999年Fusion Engineering and DesignIF 1.7出版社

AbstractA multipoint, vessel-temperature monitoring system is developed for a large reversed-field pinch machine, the TPE-RX at the Electrotechnical Laboratory. It consists of a total of 268 thermocouples attached mainly on the outer surface of the vacuum vessel and a multipoint, stand-alone data acquisition system. Simultaneous data sampling for all the signals every 0.5 s is possible with the data acquisition system dedicated to this purpose. This system is used to clarify the spatial distribution of the heat load on the first wall around a torus from a magnetically confined plasma. The entire system is currently used in routine operations and has been proven to be very effective for the detection of a localized plasma–wall interaction due to plasma distortion. Details of the specifications, characteristics and typical examples are reported.

日本語訳

抄録 大型逆転磁場ピンチ装置TPE-RX(電総研)用に、多点容器温度監視システムを開発した。本システムは、主に真空容器外面に取り付けられた合計268本の熱電対と、専用の多点独立データ収集システムから構成される。このデータ収集システムにより、全信号を0.5秒間隔で同時サンプリングすることが可能である。本システムは、磁気閉じ込めプラズマによるトーラス第一壁周辺の熱負荷の空間分布を明らかにするために使用される。現在、本システムは定常運転において使用されており、プラズマ変形による局所的なプラズマ・壁相互作用の検出に非常に有効であることが実証されている。本論文では、その仕様、特性、および典型的な例について報告する。

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