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Operational experience with the JET Impurity Processing system during and after DTE1

A Perevezentsev, A Bell, J.L Hemmerich, N Bainbridge, J Yorkshades1999年Fusion Engineering and DesignIF 1.7出版社

AbstractThe hydrogen-containing gases generated during operation and maintenance of a fusion machine need to be detritiated prior their discharge to the environment. The amounts of gaseous impurities with their chemical and isotopic compositions which were decontaminated in the JET impurity processing system during and after Deuterium–Tritium Experiment, DTE1, are presented. Two different techniques for impurities detritiation were tested. The first technique is based on catalytic oxidation of hydrogen-containing species followed by water decomposition in reaction with uranium at elevated temperature. The second technique is based on direct decomposition of impurities with molecular hydrogen liberation in reactions with uranium at elevated temperatures. The results of the impurity detritiation using both techniques are given.

日本語訳

核融合装置の運転および保守中に発生する水素含有ガスは、環境への放出前に除トリチウム化する必要がある。重水素・トリチウム実験(DTE1)中およびその後において、JET不純物処理システムで除染されたガス状不純物の量と、その化学的・同位体的組成を示す。不純物の除トリチウム化には2つの異なる技術が試験された。第1の技術は、水素含有種の触媒酸化と、それに続く高温でのウランとの反応による水の分解に基づくものである。第2の技術は、高温でのウランとの反応による分子状水素の放出を伴う不純物の直接分解に基づくものである。両技術を用いた不純物の除トリチウム化の結果を示す。

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