Movement of liquid beryllium during melt events in JET with ITER-like wall

G Sergienko, G Arnoux, S Devaux, G F Matthews, I Nunes, V Riccardo, A Sirinelli, A Huber, S Brezinsek, J W Coenen, Ph Mertens, V Philipps (+1 others)
2014 Physica Scripta  
REFERENCES [1] G. Arnoux this conference [2] K. Tsuzuki et al., Fusion Engineering and Design 81 (2006) 925-929 [3] R. ACKNOWLEDGEMENTS This work was supported by EURATOM and carried out within the framework of the European Fusion Development Agreement. The views and opinions expressed herein do not necessarily reflect those of the European Commission. CONCLUSIONS  Thermo-emission current which is important for the liquid tungsten motion against gravity [4] is too small for the case of liquid
more » ... eryllium  In contrast to liquid tungsten, pressure force due to plasma flow to liquid beryllium is comparable with Lorentz force  For electron temperatures above 40 eV, the total secondary emission from beryllium δ SEE >1 and its current could be sufficient to move the liquid beryllium.  The current along the liquid metal jet moving on the conducting surface prevents the detachment of the jet from the surface.  After the melt damage, beryllium limiters could operate afterwards in divertor configuration without defradation of the plasma performance MOTIVATION
doi:10.1088/0031-8949/2014/t159/014041 fatcat:2gcryrr54nd6ncocltbtmfti5i