|Title||Tungsten dust remobilization under steady-state and transient plasma conditions|
|Publication Type||Journal Article|
|Year of Publication||2017|
|Authors||S. Ratynskaia, P. Tolias, M. de Angeli, V. Weinzettl, J. Matejicek, I. Bykov, D.L Rudakov, L. Vignitchouk, E. Thorén, G. Riva, D. Ripamonti, T. Morgan, R. Panek, G. De Temmerman|
|Journal||Nuclear Materials and Energy|
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.
|Alternate Title||Nucl. Mater. Energy|
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