U-probe for the COMPASS Tokamak

0376672 - ÚFP 2013 RIV CZ eng C - Conference Paper (international conference)
Kovařík, Karel - Ďuran, Ivan - Stöckel, Jan - Seidl, Jakub - Šesták, David - Brotánková, J. - Spolaore, M. - Martines, E. - Vianello, N. - Hidalgo, C. - Pedrosa, M. A.
U-probe for the COMPASS Tokamak.
Proceedings of the 20th Annual Conference of Doctoral Students - WDS 2011. Prague: MATFYZPRESS, 2011 - (Šafránková, J.; Pavlů, J.), s. 227-232. WDS, 2. ISBN 978-80-7378-185-9.
[WDS 2011 - Annual Conference of Doctoral Students /20./. Prague (CZ), 31.05.2011-03.06.2011]
R&D Projects: GA ČR GD202/08/H057; GA MŠMT 7G09042; GA MŠMT 7G10072
Grant - others:EUROATOM(XE) FU07-CT-2007-00060
Institutional research plan: CEZ:AV0Z20430508
Keywords : edge plasma * filaments * tokamak
Subject RIV: BL - Plasma and Gas Discharge Physics

A complex electrostatic-magnetic probe diagnostics, baptized as 'U-probe', is being prepared for measurement of properties of the filamentary structures in the edge plasmas of COMPASS tokamak. Probe will be composed of two identical towers. Each tower will house 3 sets of 3D coils, balanced triple probe and six single Langmuir probes each. The design of the probe is based on that of U-probe used on reversed field pinch RFX-mod and our combined electromagnetic probe at TJ-II stellarator. This new COMPASS diagnostic will measure vorticity and longitudial electric current of the plasma filaments. Analysis of the properties and, particularly, the correlation between filament vorticity and its current is expected to shed light into physics of filamentary structures in the tokamak plasma edge. The simulation of the probe surface temperature evolution as a function of expected incident heat loads within the COMPASS edge plasmas is presented.
Permanent Link: http://hdl.handle.net/11104/0209015