Institute of Plasma Physics - project detail 00144

Control of ELM size and frequency using externally imposed changes of the plasma position in the COMPASS tokamak
Project ID:	GAP205/11/2470
Provider:	Czech Science Foundation
Period:	Jan 01, 2011 - Dec 31, 2013
Principal Investigator:	Ing. Martin Hron, PhD.
Co-investigators	F. Janky, J. Havlíček, J. Stöckel, J. Horáček, R. Pánek, V. Weinzettl, J. Varju, P. Cahyna
Aims of the project: This project addresses control of the size and frequency of the ELM-type instabilities using an externally imposed fast movement of the plasma column on the COMPASS tokamak. For this purpose, first, a modelling of the COMPASS plasma equilibrium will be performed using a non-linear finite element meshing code MAXFEA. Next, validation of the model in the ohmic regime and in the H-mode will be done in series of testing experiments and the reaction of the plasma column on a fast externally induced position change will be studied. Finally, experiments on the ELM control itself will be prepared and performed in the ohmic H-mode and in the H-mode induced by the NBI heating on the COMPASS tokamak. The efficiency of the ELM control using the vertical position kicks method for the COMPASS plasma will be checked and compared with other tokamak devices with ITER-like cross-section of the plasma column (namely JET and ASDEX-U).
Results:
Hron M., Janky F., Pipek J., Sousa J., Carvalho B.B., Fernandes H., Vondráček P., Cahyna P., Urban J., Papřok R., Mikulín O., Aftanas M., Pánek R., Havlíček J., Fortunato J., Batista A.J.N., Santos B.A., Duarte A., Pereira T., Valcárcel D.: Overview of the COMPASS CODAC system. Fusion Engineering and Design 89 [3] (2014) 177-185. [ Abstract ] [ Link ]
Urban J., Pipek J., Hron M., Janky F., Papřok R., Peterka M., Duarte A.S.: Integrated Data Acquisition, Storage, Retrieval and Processing Using the COMPASS DataBase (CDB). Fusion Engineering and Design 89 [5] (2014) 712-716. [ Abstract ] [ Link ] [Ninth IAEA TM on Control, Data Acquisition, and Remote Participation for Fusion Research. Hefei, 06.05.2013-10.05.2013]
Mikulín O., Hron M., Böhm P., Naylor G., Bílková P., Janky F., Salášek J., Pánek R.: Timing and triggering of the Thomson scattering diagnostics on the COMPASS tokamak. Fusion Engineering and Design 89 [5] (2014) 693-697. [ Abstract ] [ Link ] [The 9th Technical Meeting on Control, Data Acquisition, and Remote Participation for Fusion Research/9./. Hefei, 06.05.2013-10.05.2013]
Janky F., Havlíček J., Batista A.J.N., Kudláček O., Seidl J., Neto A.C., Pipek J., Hron M., Mikulín O., Duarte A.S., Carvalho B.B., Stöckel J., Pánek R.: Upgrade of the COMPASS tokamak real-time control system. Fusion Engineering and Design 89 [3] (2014) 186-194. [ Abstract ] [ Link ]
Havlíček J., Hauptmann R., Peroutka O., Tadros M., Hron M., Janky F., Vondráček P., Cahyna P., Mikulín O., Šesták D., Junek P., Pánek R.: Power supplies for plasma column control in COMPASS tokamak. Fusion Engineering and Design 88 [9-10] (2013) 1640-1640. [ Abstract ] [ Link ] [Symposium on Fusion Technology (SOFT-27)/27./. Liège, 24.09.2012-28.09.2012]
Havlíček J., Zajac J.: Design and Preliminary Results of the COMPASS Power Supplies Filters. Proceedings of the 22nd Annual Conference of Doctoral Students – WDS 2013. Prague : MATFYZPRESS, 2013 - (Šafránková, J.; Pavlů, J.), s. 91-96 ISBN 978-80-7378-251-1. - (WDS). [ Abstract ] [ Link ] [Annual Conference of Doctoral Students – WDS 2013 /22./. Praha (CZ), 04.06.2013-07.06.2013]
Písačka J., Hron M., Janky F., Pánek R.: Cluster storage for COMPASS tokamak. Fusion Engineering and Design 87 [12] (2012) 2238-2241. [ Abstract ] [ Link ] [IAEA Technical Meeting on Control, Data Acquisition, and Remote Participation for Fusion Research/8./. San Francisco, 20.06.2011-24.06.2011]
Weinzettl V., Imríšek M., Havlíček J., Mlynář J., Naydenkova D., Háček P., Hron M., Janky F., Sarychev D., Berta M., Bencze A., Szabolics T.: On Use of Semiconductor Detector Arrays on COMPASS Tokamak. World Academy of Science [77] (2012) 844-850. [ Abstract ] [ICPP 2012 : International Conference on Plasma Physics. Venice, 14.11.2012-16.11.2012]
Havlíček J., Beňo R., Stöckel J.: A Simulation of the COMPASS Equilibrium Field Power Supply PID Controller. Proceedings of the 20th Annual Conference of Doctoral Students - WDS 2011. Prague : MATFYZPRESS, 2011 - (Šafránková, J.; Pavlů, J.) S. 221-226. ISBN 978-80-7378-185-9. - (WDS. 2). [ Abstract ] [ Link ] [Annual Conference of Doctoral Students - WDS 2011/20./. Prague (CZ), 31.05.2011-03.06.2011]