Výzkum okraje plazmatu tokamaku COMPASS pomocí dvojice hluboko zasunutých sond, interpretován počítačovými modely
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ID projektu: | GAP205/12/2327 | Poskytovatel: | Grantová agentura České republiky | Období: | 01.01.2012 - 31.12.2015 | Hlavní řešitel: | Mgr. Jan Horáček, Ph.D. | Spoluřešitelé | J. Adámek, J. Seidl, P. Bílková, J. Stöckel, D. Naydenkova, P. Vondráček, R. Dejarnac | Cíle projektu: Tokamak je nadějným globálním zdrojem energie tohoto tisíciletí. Snížení transportu horkého plazmatu směrem k vnitřnímu povrchu tokamaku je dlouhodobě klíčové téma mezinárodního výzkumu s cílem prodloužit životnost vnitřní stěny a snížit uvolňování nečistot do plazmatu. V rámci tohoto projektu budeme na pražském tokamaku COMPASS (a taky ASDEX-Upgrade) experimentálně studovat dvě klíčové součásti tohoto problému. a) turbulentní transport okrajového plazmatu, interpretován modelem ESEL, s cílem zpřesnit škálování šířky SOL (doplněn experimentem na tokamaku JET) na 10x větší tokamak ITER. Ideální diagnostika k tomuto studiu, dvojice skákavých (reciprocating) sond, je nainstalována, a je doplněná dalšími diagnostikami. b) Pokryjeme hlavici sondy diamantovou vrstvou a zrychlíme její pohyb za účelem přežití vyšších tepelných toků nežli je obvyklé, což umožní studovat turbulenci v pedestalu H-modu (zodpovědnému za lepší udržení plazmatu), jehož turbulentní struktury jsou zatím experimentálně neprozkoumány.
| Související výsledky: | Jirman T., Peterka M., Seidl J., Cavalier J., Weinzettl V., Brochard F., Cahyna P., Harrison J., Imríšek M., Kirk A., Pánek R.: Edge plasma study using a fast visible light camera in the COMPASS tokamak. Energy Procedia. Vol. 127. Amsterdam: Elsevier Ltd, 2017 - (Jimenez, G.; Capriotti, L.; Cao, L.), s. 360-368. Elsevier Science. ISSN 1876-6102. [ Link ] [International Youth Nuclear Congress 2016, IYNC 2016. Hangzhou (CN), 24.07.2016-30.07.2016] |
Horáček J., Pitts R.A., Adámek J., Arnoux G., Bak J.-G., Brezinsek S., Dimitrova M., Goldston R.J., Gunn J. P., Havlíček J., Hong S.-H., Janky F., LaBombard B., Marsen S., Maddaluno G., Nie L., Pericoli V., Popov Tsv., Pánek R., Rudakov D., Seidl J., Seo D.S., Shimada M., Silva C., Stangeby P.C., Viola B., Vondráček P., Wang H., Xu G.S., Xu Y.: Multi-machine scaling of the main SOL parallel heat flux width in tokamak limiter plasmas. Plasma Physics and Controlled Fusion 58 [7] (2016) 074005. [ Link ] |
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Melnikov A., Markovič T., Eliseev L.G., Adámek J., Aftanas M., Bílková P., Böhm P., Gryaznevich M., Imríšek M., Lysenko S.E., Medvedev S.Yu., Pánek R., Peterka M., Seidl J., Štefániková E., Stöckel J., Weinzettl V.: Quasicoherent modes on the COMPASS tokamak. Plasma Physics and Controlled Fusion 57 [6] (2015) 065006-065006. [ Link ] |
Silva C., Adámek J., Fernandes H., Figueiredo H.: Comparison of fluctuations properties measured by Langmuir and ball-pen probes in the ISTTOK boundary plasma. Plasma Physics and Controlled Fusion 57 [2] (2015) 025003-025003. [ Link ] |
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Garcia O.E., Horáček J., Pitts R.A.: Intermittent fluctuations in the TCV scrape-off layer. Nuclear Fusion 55 [6] (2015) 062002-062002. [ Link ] |
Horáček J., Vondráček P., Pánek R., Dejarnac R., Komm M., Pitts R.A., Kocan M., Goldston R.J., Stangeby P.C., Gauthier E., Háček P., Havlíček J., Hron M., Imríšek M., Janky F., Seidl J.: Narrow heat flux channels in the COMPASS limiter scrape-off layer. Journal of Nuclear Materials 463 [August] (2015) 385-388. [ Link ] [PLASMA-SURFACE INTERACTIONS 21: International Conference on Plasma-Surface Interactions in Controlled Fusion Devices. Kanazawa, 26.05.2014-30.05.2014] |
Ondáč P., Horáček J., Seidl J., Vondráček P., Müller H.W., Adámek J., Nielsen A.H.: Comparison Between 2D Turbulence Model ESEL and Experimental Data from AUG and Compass Tokamaks. Acta polytechnica 55 [2] (2015) 128-135. [ Link ] |
Popov T.S.V.K., Dimitrova M., Pedrosa M. A., López-Bruna D., Horáček J., Kovačič J., Dejarnac R., Stöckel J., Aftanas M., Böhm P., Bílková P., Hidalgo C., Pánek R.: Bi-Maxwellian electron energy distribution function in the vicinity of the last closed flux surface in fusion plasma. Plasma Physics and Controlled Fusion 57 [11] (2015) 115011-115011. [ Link ] |
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Horáček J., Pitts R.A., Gunn J., Silva C., Rudakov D., Arnoux G., Marsen S., Vondráček P., Maddaluno G., Pericoli V., Viola B., Xu G.S., Wang H., Nie L., LaBombard B., Brezinsek S., Xu Y., Shimada M., Adámek J., Popov Tsv., Dimitrova M., Seidl J., Janky F., Pánek R., Goldston R.J., Stangeby P.C.: Multi-machine scaling of main SOL parallel heat flux width in tokamak limiter plasmas. EPS 2015:42nd European Physical Society Conference on Plasma Physics. Vol. 39E. Mulhouse : European Physical Society, 2015, O2.105-O2.105. ISBN 2-914771-98-3. - (Europhysics Conference Abstracts. ECA. 39E). [ Link ] [EPS 2015 Conference on Plasma Physics/42./. Lisabon (PT), 22.06.2015-26.06.2015] |
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Vondráček P., Horáček J., Cahyna P., Pánek R., Uličný J.: Infrared Thermography on the COMPASS Tokamak. Proceedings of the 22nd Annual Conference of Doctoral Students – WDS 2013. Prague : MATFYZPRESS, 2013 - (Šafránková, J.; Pavlů, J.), s. 80-85 ISBN 978-80-7378-251-1. - (WDS). [ Link ] [Annual Conference of Doctoral Students – WDS 2013 /22./. Praha (CZ), 04.06.2013-07.06.2013] |
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