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New operational aspects of the ITER-FEAT primary vacuum pumping system

Chr Day, H Haas, A Mack, D.K Murdoch2001年Fusion Engineering and DesignIF 1.7出版社

AbstractAt Forschungszentrum Karlsruhe, a special cryosorption vacuum pump system is being developed for ITER-FEAT. The available R&D and design work performed so far originally supported the ITER-FDR machine, but only minor redirection has been needed. However, three new crucial aspects are described and critically discussed in this paper. These are the rather high throughputs per individual pump (which have almost doubled), the poisoning phenomena, and the use of the cryopumps during fine He leak detection. It could be demonstrated that all these aspects generated by the new ITER-FEAT design will not be a limiting factor for cryopump operation.

日本語訳

カールスルーエ研究センターでは、ITER-FEAT用の特殊な低温吸着真空ポンプシステムが開発されている。これまでに実施された利用可能なR&Dおよび設計作業は、当初はITER-FDR機を対象としたものであったが、わずかな方向修正のみが必要とされた。しかしながら、本論文では、3つの新たな重要側面について記述し、批判的に考察する。すなわち、個々のポンプあたりのかなり高い排気速度(ほぼ2倍に達する)、被毒現象、および微細ヘリウム漏れ検出中の低温ポンプの使用である。ITER-FEATの新設計によって生じるこれらすべての側面が、低温ポンプの運転にとって制限要因とはならないことが実証された。

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