Nonlinear Effects Near Antennas in Tokamaks
Project ID:GA202/07/0044
Provider:Czech Science Foundation
Period:Jan 01, 2007 - Dec 31, 2011
Recipient - coordinatorInstitute of Plasma Physics, Czech Academy of Sciences, Prague
Principal Investigator:Ing. Václav Petržílka, DrSc.
Co-recepient(s) / PI(s):Faculty of Mathematics and Physics, Charles University, Prague -- Prof. RNDr. Milan Tichý, DrSc.
Co-investigators from IPPV. Fuchs, P. Pavlo, F. Žáček, R. Pánek, J. Stöckel, L. Krlín

Aims of the project: We suggest to explore in detail nonlinear effects resulting from the action of waves launched by antennas in fusion devices, like tokamaks. The focus of this study will be the nonlinear changes in the wave coupling, e.g. due to the direct ionization of neutrals near the antenna, and the generation of fast electrons and ions just near the antenna, due to the absorption of the launched wave. The fast particles can cause high thermal loads at locations, where they hit the wall. In addition, they can create electrostatic field near the antennas. The consequent plasma flows can then lead to asymmetric heat loads on the antennas, and asymmetric wave coupling features.

Results:

Kurian M., Krlín L., Cahyna P., Pánek R.: Particle dynamics in the rmp ergodic layer under the influence of edge plasma turbulence. Acta polytechnica 53 [4] (2013) 359-364. [ Abstract ] [ Link ]

Adámek J., Peterka M., Gyergyek T., Kudrna P., Ramisch M., Stroth U., Cavalier J., Tichý M.: Application of the Ball-Pen Probe in Two Low-Temperature Magnetised Plasma Devices and in Torsatron TJ-K. Contributions to Plasma Physics 53 [1] (2013) 39-44. [ Abstract ] [ Link ]
[International Workshop on Electric Probes in Magnetized Plasmas/9./. Iasi, 21.09.2011-23.09.2011]

Adámek J., Peterka M., Gyergyek T., Kudrna P., Tichý M.: Diagnostics of magnetized low temperature plasma by ball-pen probe. Nukleonika 57 [2] (2012) 297-300. [ Abstract ] [ Link ]
[International Conference on Research and Applications of Plasmas (PLASMA). Warsaw, 12.09.2011-16.09.2011]

Goniche M., Frincu B., Ekedahl A., Petržílka V., Berger-By G., Hillairet J., Litaudon X., Preynas M., Voyer D.: Experimental Investigation of Nonlinear Coupling of Lower Hybrid Waves on Tore Supra. Fusion Science and Technology 62 [2] (2012) 322-332. [ Abstract ]

Ekedahl A., Petržílka V., Baranov Y., Biewer T.M., Brix M., Goniche M., Jacquet P., Kirov K.K., Klepper C.C., Mailloux J., Mayoral M.-L., Nave M.F.F., Ongena J., Rachlew E.: Influence of gas puff location on the coupling of lower hybrid waves in JET ELMy H-mode plasmas. Plasma Physics and Controlled Fusion 54 [7] (2012) 074004-074004. [ Abstract ] [ Link ]
[IAEA Fusion Energy Conference 2010/23./. Daejeon, 11.10.2010-16.10.2010]

Petržílka V., Mailloux J., Ongena J., Corrigan G., Fuchs V., Goniche M., Parail V., Belo P., Ekedahl A., Jacquet P., Mayoral M.-L., Silva C., Stamp M.: JET scrape-off-layer ionization at lower hybrid wave launching. Plasma Physics and Controlled Fusion 54 [7] (2012) 074005-074005. [ Abstract ] [ Link ]
[IAEA Fusion Energy Conference /23rd./. Daejon, 11.10.2010-16.10.2010]

Krlín L., Papřok R., Seidl J., Pánek R., Stöckel J.: Anomalous Diffusion of Particles in Edge Plasma Turbulence in Tokamaks and Random and Lévy Walk Distributions. Statistical Mechanics and Random Walks: Principles, Processes and Applications. New York : Nova Science Publisher, 2011 - (Skogseid, A.; Fasano, V.) S. 65-90. ISBN 978-1-61470-966-4 [ Abstract ]

Fuchs V., Harvey R.W., Cairns R.A., Urban J., Žáček F., Peysson Y., Decker J., Preynas M., Goniche M., Hillairet J.: Assessment of Lower Hybrid Current Drive System for COMPASS. EPS Europhysics Conference Abstracts Volume 35G – Contributed papers. Mulhouse : European Physical Society, 2011 - (Becoulet, A.; Hoang, T.; Stroth, U.) P1.100-P1.100. ISBN 2-914771-68-1. - (EPS. 35G). [ Abstract ] [ Link ]
[European Physical Society Conference on Plasma Physics /38th./. Strasbourg (FR), 27.06.2011-01.07.2011]

Petržílka V., Gunn J., Ekedahl A., Delpech L., Fuchs V., Goniche M., Kubic M., Pascal J. Y.: Comparison of fast electron fluxes generated in front of Passive-Active and Fully-Active Multijunction LH antennas in Tore Supra. EPS Europhysics Conference Abstracts Volume 35G – Contributed papers. Mulhouse : European Physical Society, 2011 - (Becoulet, A.; Hoang, T.; Stroth, U.) P4.100-P4.100. ISBN 2-914771-68-1. - (EPS. 35G). [ Abstract ] [ Link ]
[European Physical Society Conference on Plasma Physics /38th./. Strasbourg (FR), 27.06.2011-01.07.2011]

Petržílka V., Corrigan G., Fuchs V., Ekedahl A., Goniche M., Jacquet P., Mailloux J., Mayoral M.-L., Ongena J., Parail V.: Modelling of the density modifications in front of the LH launcher during gas injection in ITER. EPS Europhysics Conference Abstracts Volume 35G – Contributed papers. Mulhouse : European Physical Society, 2011 - (Becoulet, A.; Hoang, T.; Stroth, U.) P4.099-P4.099. ISBN 2-914771-68-1. - (EPS. 35G). [ Abstract ] [ Link ]
[European Physical Society Conference on Plasma Physics /38th./. Strasbourg (FR), 27.06.2011-01.07.2011]

Petržílka V., Fuchs V., Gunn J., Fedorczak N., Ekedahl A., Goniche M., Hillairet J., Pavlo P.: Theory of fast particle generation in front of LH grills. Plasma Physics and Controlled Fusion 53 [5] (2011) 054016-054016. [ Link ]
[Joint Varenna-Lausanne Workshop on the Theory of Fusion Plasmas. Varenna, 30.08.2010-03.09.2010]

Jacquet P., Colas L., Mayoral M.-L., Arnoux G., Bobkov V., Brix M., Coad P., Czarnecka A., Dodt D., Durodie F., Ekedahl A., Frigione D., Fursdon M., Gauthier E., Goniche M., Graham M., Joffrin E., Korotkov A., Lerche E., Mailloux J., Monakhov I., Noble C., Ongena J., Petržílka V., Portafaix C., Rimini F., Sirinelli A., Riccardo V., Vizvary Z., Widdowson A., Zastrow K.-D.: Heat loads on JET plasma facing components from ICRF and LH waveabsorption in the SOL. Nuclear Fusion 51 [10] (2011) 103018-103018. [ Link ]

Matveev D., Kirschner A., Litnovsky A., Borodin D., Philipps V., Van Oost G., Komm M.: Modelling of impurity deposition in gaps of castellated surfaces with the 3D-GAPS code. Plasma Physics and Controlled Fusion 52 [7] (2010) 075007-075007. [ Abstract ] [ Link ]

Tierens W., Komm M., Stöckel J., Van Oost G.: Novel cylindrical probe for measuring ion temperature in magnetized plasmas. Contributions to Plasma Physics 50 [9] (2010) 841-846. [ Abstract ] [ Link ]

Havlíček J., Kudláček O., Janky F., Horáček J., Beňo R., Valcárcel D.F., Fixa J., Brotánková J., Zajac J., Hron M., Pánek R., Cahyna P.: Status of Magnetic Diagnostics on COMPASS. WDS’10 Proceedings of Contributed Papers: Part II – Physics of Plasmas and Ionized Media. Prague : MATFYZPRESS, 2010 - (Šafránková, J.; Pavlů, J.) S. 12-17. ISBN 978-80-7378-140-8. [ Abstract ] [ Link ]
[Annual Student Conference Week of Doctoral Students 2010/19th./. Prague (CZ), 01.06.2010-04.06.2010]

Fuchs V., Gunn J., Petržílka V., Horáček J., Seidl J., Ekedahl A., Goniche M., Hillairet J.: A note on the Radial Extent of LH wave – tokamak SOL interaction. Contributed Papers 36th European Physical Society Conference on Plasma Physics. Sofia : European Physical Society, 2009 - (Mateev, M.; Benova, E.) P-5.201. ISBN 2-914771-61-4. - (Europhysics conference abstracts). [ Abstract ] [ Link ]
[European Physical Society Conference on Plasma Physics /36th./. Sofia (BG), 29.06.2009-03.07.2009]

Ekedahl A., Rantamäki K., Goniche M., Mailloux J., Petržílka V., Alper B., Baranov Y., Basiuk V., Beaumont P., Corrigan G., Delpech L., Erents K., Granucci G., Hawkes N., Hobirk J., Imbeaux F., Joffrin E., Kirov K., Loarer T., McDonald D., Nave M.F.F., Nunes I., Ongena J., Parail V., Piccolo F., Rachlew E., Silva C., Sirinelli A., Stamp M., Zastrow K.D., JET EFDA Contributors.: Effect of gas injection during LH wave coupling at ITER-relevant plasma–wall distances in JET. Plasma Physics and Controlled Fusion 51 [4] (2009) 044001-17. [ Abstract ] [ Link ]

Kirov K.K., Mayoral M.-L., Mailloux J., Colas L., Ekedahl A., Erents K., Goniche M., Korotkov A., Morgan P., Petržílka V., Ongena J., Rantamäki K., Stamp M., JET EFDA Contributors., Baranov Yu.: Effects of ICRF induced density modifications on LH wave coupling at JET. Plasma Physics and Controlled Fusion 51 [4] (2009) 044003-20. [ Abstract ] [ Link ]

Fuchs V., Gunn J. P., Petržílka V., Horáček J., Seidl J., Ekedahl A., Goniche M., Hillairet J.: Landau damping of the lower hybrid grill spectrum by tokamak edge electrons. RADIO FREQUENCY POWER IN PLASMAS: Proceedings of the 18th Topical Conference. AIP Conference Proceedings. Melville : American Institute of Physics, 2009 - (Bobkov, V.; Noterdaeme, J.) S. 383-386. ISBN 978-0-7354-0753-3. - (AIP Conference Proceedings. 1187). [ Abstract ]
[Topical Conference on Radio Frequency Power in Plasmas/18th./. Ghent (BE), 24.06.2009-26.06.2009]

Cairns R.A., Fuchs V.: Lower hybrid radiation pattern from ray tracing. Contributed Papers 36th European Physical Society Conference on Plasma Physics. Sofia : European Physical Society, 2009 - (Mateev, M.; Benova, E.) P1.134. ISBN 2-914771-61-4. - (Europhysics conference abstracts). [ Abstract ] [ Link ]
[European Physical Society Conference on Plasma Physics /36th./. Sofia (BG), 29.06.2009-03.07.2009]

Havlíček J., Horáček J., Weinzettl V., Hronová-Bilyková O., Naydenkova D., Zajac J.: Magnetic Diagnostics for Start-up Phase of COMPASS. WDS’09 Proceedings of Contributed Papers. Prague : MATFYZPRESS, Prague, 2009 - (Šafránková, J.; Pavlů, J.) S. 148-152. ISBN 978-80-7378-102-6. [ Abstract ] [ Link ]
[Annual Conference of Doctoral Students - WDS 2009 /18th./. Prague (CZ), 02.06.2009-05.06.2009]

Gunn J. P., Petržílka V., Ekedahl A., Fuchs V., Gauthier E., Goniche M., Kočan M., Pascal J.Y., Saint-Laurent F.: Measurement of lower hybrid hot spots using a retarding field analyzer in Tore Supra. Journal of Nuclear Materials 390-391 [1] (2009) 904-906. [ Abstract ] [ Link ]
[International Conference on Plasma-Surface Interactions in Controlled Fusion Devices/18th./. Toledo, 26.05.2008-30.5.2008]

Gunn J. P., Petržílka V., Fuchs V., Ekedahl A., Goniche M., Hillaret J., Kocan M., Saint-Laurent F.: Radial-Poloidal Mapping of the Energy Distribution of Electrons Accelerated by Lower Hybrid Waves in the Scrape-Off Layer. RADIO FREQUENCY POWER IN PLASMAS: Proceedings of the 18th Topical Conference. AIP Conference Proceedings. Melville : American Institute of Physics, 2009 - (Bobkov, V.; Noterdaeme, J.) S. 391-394. ISBN 978-0-7354-0753-3. - (AIP Conference Proceedings. 1187). [ Abstract ]
[Topical Conference on Radio Frequency Power in Plasmas/18th./. Ghent (BE), 24.06.2009-26.06.2009]

Petržílka V., Corrigan G., Belo P., Goniche M., Biewer T.M., Ekedahl A., Jacquet P., Mailloux J., Mayoral M.-L., Ongena J., Parail V., JET EFDA Contributors.: Scrape-off-layer variations during Lower Hybrid ionization and ELMs. Contributed Papers 36th European Physical Society Conference on Plasma Physics. Sofia : European Physical Society, 2009 - (Mateev, M.; Benova, E.) P5.166. ISBN 2-914771-61-4. - (Europhysics conference abstracts). [ Abstract ] [ Link ]
[European Physical Society Conference on Plasma Physics /36th./. Sofia (BG), 29.06.2009-03.07.2009]

Seidl J., Krlín L., Pánek R., Pavlo P., Stöckel J., Svoboda V.: Simulations of anomalous ion diffusion in experimentally measured turbulent potential. European Physical Journal D 54 [2] (2009) 399-407. [ Abstract ] [ Link ]
[Symposium on Plasma Physics and Technology/23rd./. Prague, 16.06.2008-19.06.2008]

Goniche M., Ekedahl A., Mailloux J., Petržílka V., Rantamäki K., Belo P., Corrigan G., Delpech L., Erents K., Jacquet P., Kirov K., Mayoral M.-L., Ongena J., Portafaix C., Stamp M., JET EFDA Contributors., Zastrow K-D.: SOL characterization and LH coupling measurements on JET in ITER-relevant conditions. Plasma Physics and Controlled Fusion 51 [4] (2009) 044002-18. [ Abstract ] [ Link ]

Ongena J., Baranov Y., Bobkov V., Challis C., Colas I., Conroy S., Durodié F., Ekedahl A., Ericsson G., Eriksson L.-G., Jacquet Ph., Jenkins I., Johnson T., Giacomelli L., Goniche M., Granucci G., Hellsten T., Hjalmarsson A., Holmström K., Huygen S., Källne J., Kiptily V., Kirov K., Krasilnikov A., Laxaback M., Lerche E., Mailloux J., Mayoral M.L., Monakhov I., Nave M., Nightingale M., Noterdaeme J.M., Lennholm M., Petržílka V., Rantamaki K., Salmi A., Santala M., Solano E., Van Eester D., Vervier M., Vrancken M., Walden A., Hellesen C.: ITER-relevant Heating and Current Drive Studies on JET. The 22nd IAEA Fusion Energy Conference (FEC). Geneva, : IAEA, 2008. S. 83-90. ISBN N. [ Abstract ]
[The 22nd IAEA Fusion Energy Conference (FEC 2008)/22nd./. Geneva (CH), 13.10.2008-18.10.2008]

Goniche M., Ekedahl A., Rantamaki K., Mailloux J., Petržílka V., Arnoux G., Baranov Y., Delpech L., Erents K., Jacquet Ph., Kirov K., Mayoral M.-L., Ongena J., Piccolo F., Sirinelli A., Stamp M., Zastrow K.D.: Lower Hybrid Current Drive Experiments on JET in ITER-Relevant Coupling Conditions. 22nd IAEA Fusion Energy Conference. Geneva : IAEA, 2008. S. 90-99. ISBN N. [ Abstract ]
[IAEA Fusion Energy Conference/22nd./. Geneva (CH), 13.10.2008-18.10.2008]

Gunn J., Petržílka V., Ekedahl A., Fuchs V., Gauthier E., Goniche M., Kocan M., Saint-Laurent F.: Measurement of LH hot spots using a retarding field analyzer in Tore Supra. Proceedings of 18th International Conference on Plasma Surface Interactions. Toledo : The National Fusion Laboratory, 2008. S. 11-26. ISBN N. [ Abstract ]
[International Conference on Plasma Surface Interactions/18th./. Toledo (ES), 26.05.2008-30.05.2008]

Petržílka V., Goniche M., Fuchs V., Clairet F., Corrigan G., Belo P., Ongena J.: On SOL Variations as a Function of LH Power. Biennial European Plasma Conference HTTP-10/10th./. Hersonissos : University of Patras Plasma Technology Lab, 2008. P1.106-P1.106. ISBN N. - (European Physical Society). [ Abstract ]
[EPS Plasma Physics Conference/35th./. Hersonissos (GR), 09.06.2008-13.06.2008]

Krlín L., Papřok R., Svoboda V.: Modelling of Lévy walk kinetics of charged particles in edge electrostatic turbulence in tokamaks. European Physical Journal D 48 [1] (2008) 95-109. [ Abstract ] [ Link ]

Gunn J. P., Colas L., Ekedahl A., Faudot E., Fuchs V., Heuraux S., Goniche M., Kočan M., Ngadjeu A., Petržílka V., Saint-Laurent F., Vulliez K.: Extreme Scrape-off Layer Phenomena during RF Heating in Tore Supra. 22nd IAEA Fusion Energy Conference. Geneva : IAEA, 2008. S. 100-107. ISBN N. [ Abstract ]
[IAEA Fusion Energy Conference/22nd./. Geneva (CH), 13.10.2008-18.10.2008]

Havlíček J., Urban J.: A Magnetic Equilibrium Reconstruction in Tokamak. WDS'07 - Proceedings of Contributed Papers. Part II: Physics of Plasmas and Ionized Media. Praha : MATFYZPRESS, 2007 - (Šafránková, J.; Pavlů, J.) S. 234-239. ISBN 978-80-7378-024-1. [ Abstract ] [ Link ]
[Annual Conference of Doctoral Students/16th./. Praha (CZ), 05.06.2007-08.06.2007]

Ekedahl A., Goniche M., Balorin C., Basiuk V., Bibet Ph., Chantant M., Colas L., Delpech L., Desgranges C., Eriksson L.-G., Joffrin E., Kazarian F., Lowry C., Moreau Ph., Petržílka V., Portafaix C., Prou M., Roche H.: Thermal and non-thermal particle interaction with the LHCD launchers in Tore Supra. Journal of Nuclear Materials 363-365 [8] (2007) 1329-1333. [ Abstract ]