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Tritium permeation through the first wall of the EU-HCPB blanket

Olga V Ogorodnikova, Xavier Raepsaet, Michael A Fütterer2000年Fusion Engineering and DesignIF 1.7出版社

AbstractThe Helium Cooled Pebble Bed (HCPB) blanket is one of the two concepts to be further developed for a European DEMO power reactor. Tritium leakage due to the permeation through the main structural materials constitutes one of the main problems of the fusion technology. In the present work, the tritium permeation through and inventory in the first wall between the plasma and the first wall coolant has been evaluated. The influence of temperature gradient, surface conditions, isotopic effect, and trapping in ion- and neutron-induced defects on the hydrogen isotope permeation and inventory has been considered.

日本語訳

ヘリウム冷却ペブルベッド(HCPB)ブランケットは、欧州DEMO発電炉に向けてさらに開発すべき2つの概念のうちの1つである。主要な構造材料を通した透過によるトリチウム漏洩は、核融合技術の主要な問題の1つを構成する。本研究では、プラズマと第一壁冷却材の間の第一壁におけるトリチウム透過とインベントリを評価した。温度勾配、表面状態、同位体効果、およびイオン・中性子誘起欠陥における捕捉が、水素同位体の透過とインベントリに及ぼす影響を考慮した。

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TritiumFirst wallHelium-cooled pebble bedTritium permeation
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