Tungsten dust remobilization under steady-state and transient plasma conditions
| Autor: | M. De Angeli, Jiri Matejicek, E. Thoren, G. Riva, Vladimir Weinzettl, Igor Bykov, Thomas Hunt Morgan, D.L. Rudakov, G. De Temmerman, Panagiotis Tolias, D. Ripamonti, Svetlana V. Ratynskaia, Radomir Panek, Ladislas Vignitchouk |
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| Rok vydání: | 2016 |
| Předmět: |
Nuclear and High Energy Physics
Steady state Materials science Materials Science (miscellaneous) Dust-in-plasma Metallurgy chemistry.chemical_element Gas dynamics Plasma Tungsten Thermal conduction lcsh:TK9001-9401 01 natural sciences complex mixtures 010305 fluids & plasmas Contact mechanics Nuclear Energy and Engineering chemistry Chemical physics 0103 physical sciences lcsh:Nuclear engineering. Atomic power Transient (oscillation) 010306 general physics |
| Zdroj: | Nuclear Materials and Energy, 12, 569-574 Nuclear Materials and Energy Nuclear materials and energy 12 (2017): 569–574. doi:10.1016/j.nme.2016.10.021 info:cnr-pdr/source/autori:Ratynskaia S.; Tolias P.; De Angeli M.; Weinzettl V.; Matejicek J.; Bykov I.; Rudakov D. L.; Vignitchouk L.; Thorén E.; Riva G.; Ripamonti D.; Morgan T.; Panek R.; De Temmerman G./titolo:Tungsten dust remobilization under steady-state and transient plasma conditions/doi:10.1016%2Fj.nme.2016.10.021/rivista:Nuclear materials and energy/anno:2017/pagina_da:569/pagina_a:574/intervallo_pagine:569–574/volume:12 Nuclear Materials and Energy, Vol 12, Iss, Pp 569-574 (2017) |
| ISSN: | 2352-1791 |
| DOI: | 10.1016/j.nme.2016.10.021 |
| Popis: | Remobilization is one of the most prominent unresolved fusion dust-relevant issues, strongly related to the lifetime of dust in plasma-wetted regions, the survivability of dust on hot plasma-facing surfaces and the formation of dust accumulation sites. A systematic cross-machine study has been initiated to investigate the remobilization of tungsten micron-size dust from tungsten surfaces implementing a newly developed technique based on controlled pre-adhesion by gas dynamics methods. It has been utilized in a number of devices and has provided new insights on remobilization under steady-state and transient conditions. The experiments are interpreted with contact mechanics theory and heat conduction models. |
| Databáze: | OpenAIRE |
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