Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Deuterium removal from beryllium co-deposits by simulated strike-point sweeping
Beryllium (Be) co-deposition with hydrogen isotopes will probably be the main mechanism of tritium accumulation in ITER. To reduce the use of baking of the first wall and divertor, raising strike-points during a pure deuterium (D) discharge has been proposed to heat the co-deposits directly and enhance tritium desorption. The feasibility of such plasma-induced removal as a potential means of tritium control has been investigated. Be-D co-deposited layers with a thickness of around 3 μm were created at 428–458 K and exposed to D or H plasma at various temperatures (673–873 K) for various times (180–1200 s). The remaining D content was measured by thermal desorption spectroscopy and compared to the control samples. Plasma-induced desorption was found to be efficient in removing significant amounts of D out of the co-deposits, removing 85% of D from the layer after D plasma exposure at 773 K for 1200 s and 84% of D after exposure at 873 K for only 180 s.
Deuterium removal from beryllium co-deposits by simulated strike-point sweeping
Beryllium (Be) co-deposition with hydrogen isotopes will probably be the main mechanism of tritium accumulation in ITER. To reduce the use of baking of the first wall and divertor, raising strike-points during a pure deuterium (D) discharge has been proposed to heat the co-deposits directly and enhance tritium desorption. The feasibility of such plasma-induced removal as a potential means of tritium control has been investigated. Be-D co-deposited layers with a thickness of around 3 μm were created at 428–458 K and exposed to D or H plasma at various temperatures (673–873 K) for various times (180–1200 s). The remaining D content was measured by thermal desorption spectroscopy and compared to the control samples. Plasma-induced desorption was found to be efficient in removing significant amounts of D out of the co-deposits, removing 85% of D from the layer after D plasma exposure at 773 K for 1200 s and 84% of D after exposure at 873 K for only 180 s.
Deuterium removal from beryllium co-deposits by simulated strike-point sweeping
Anže Založnik (Autor:in) / Russell P. Doerner (Autor:in) / Gregory De Temmerman (Autor:in)
2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Metadata by DOAJ is licensed under CC BY-SA 1.0
Dynamic control of low-Z material deposition and tungsten erosion by strike point sweeping on DIII-D
| DOAJ | 2017
AUTOMATIC SIDE BROOM STRIKE PATTERN POSITIONING SYSTEM FOR A STREET SWEEPING MACHINE
| Europäisches Patentamt | 2022
AUTOMATIC SIDE BROOM STRIKE PATTERN POSITIONING SYSTEM FOR A STREET SWEEPING MACHINE
| Europäisches Patentamt | 2022
Analytical approach for description of deuterium content in deuterium-beryllium co-deposited layers
| DOAJ | 2021