@article{MTMT:32603870, title = {Frontiers in data analysis methods: from causality detection to data driven experimental design}, url = {https://m2.mtmt.hu/api/publication/32603870}, author = {Murari, A. and Peluso, E. and Craciunescu, T. and Dormido-Canto, S. and Lungaroni, M. and Rossi, R. and Spolladore, L. and Vega, J. and Gelfusa, M. and Plasma, Frigyes}, doi = {10.1088/1361-6587/ac3ded}, journal-iso = {PLASMA PHYS CONTR F}, journal = {PLASMA PHYSICS AND CONTROLLED FUSION}, volume = {64}, unique-id = {32603870}, issn = {0741-3335}, abstract = {On the route to the commercial reactor, the experiments in magnetical confinement nuclear fusion have become increasingly complex and they tend to produce huge amounts of data. New analysis tools have therefore become indispensable, to fully exploit the information generated by the most relevant devices, which are nowadays very expensive to both build and operate. The paper presents a series of innovative tools to cover the main aspects of any scientific investigation. Causality detection techniques can help identify the right causes of phenomena and can become very useful in the optimisation of synchronisation experiments, such as the pacing of sawteeth instabilities with ion cyclotron radiofrequency heating modulation. Data driven theory is meant to go beyond traditional machine learning tools, to provide interpretable and physically meaningful models. The application to very severe problems for the tokamak configuration, such as disruptions, could help not only in understanding the physics but also in extrapolating the solutions to the next generation of devices. A specific methodology has also been developed to support the design of new experiments, proving that the same progress in the derivation of empirical models could be achieved with a significantly reduced number of discharges.}, keywords = {PREDICTION; experimental design; TIME-SERIES; Scaling laws; genetic programming; Tokamaks; Symbolic regression; causality detection; sawteeth pacing}, year = {2022}, eissn = {1361-6587} } @article{MTMT:32467474, title = {Impact of magnetic islands on plasma flow and turbulence in W7-X}, url = {https://m2.mtmt.hu/api/publication/32467474}, author = {Estrada, T. and Maragkoudakis, E. and Carralero, D. and Windisch, T. and Velasco, J.L. and Killer, C. and Andreeva, T. and Geiger, J. and Dinklage, A. and Krämer-Flecken, A. and Wurden, G.A. and Beurskens, M. and Bozhenkov, S. and Damm, H. and Fuchert, G. and Pasch, E. and Plasma, Frigyes}, doi = {10.1088/1741-4326/ac146f}, journal-iso = {NUCL FUSION}, journal = {NUCLEAR FUSION}, volume = {61}, unique-id = {32467474}, issn = {0029-5515}, year = {2021}, eissn = {1741-4326} } @article{MTMT:32467349, title = {Steady State ECRH Operation at the W7-X Stellarator}, url = {https://m2.mtmt.hu/api/publication/32467349}, author = {Laqua, HP and Plasma, Frigyes}, doi = {10.1585/pfr.16.2402058}, journal-iso = {PLASMA FUSION RES}, journal = {PLASMA AND FUSION RESEARCH}, volume = {16}, unique-id = {32467349}, issn = {1880-6821}, year = {2021} } @article{MTMT:32285770, title = {Comparing particle transport in JET and DIII-D plasmas: gyrokinetic and gyrofluid modelling}, url = {https://m2.mtmt.hu/api/publication/32285770}, author = {Fransson, E and Eriksson, F and Oberparleiter, M and Held, M and Mordijck, S and Nordman, H and Salmi, A and Strand, P and Tala, T and Plasma, Frigyes}, doi = {10.1088/1741-4326/abbf63}, journal-iso = {NUCL FUSION}, journal = {NUCLEAR FUSION}, volume = {61}, unique-id = {32285770}, issn = {0029-5515}, year = {2021}, eissn = {1741-4326} } @article{MTMT:32282428, title = {Overview of the results from divertor experiments with attached and detached plasmas at Wendelstein 7-X and their implications for steady-state operation}, url = {https://m2.mtmt.hu/api/publication/32282428}, author = {Jakubowski, M and Endler, M and Feng, Y and Gao, Y and Killer, C and Konig, R and Krychowiak, M and Perseo, V and Reimold, F and Schmitz, O and Pedersen, TS and Brezinsek, S and Dinklage, A and Drewelow, P and Niemann, H and Otte, M and Gruca, M and Hammond, K and Kremeyer, T and Kubkowska, M and Jablonski, S and Pandey, A and Wurden, G and Zhang, D and Bozhenkov, S and Bockenhoff, D and Dhard, CP and Baldzuhn, J and Gradic, D and Effenberg, F and Kornejew, P and Lazerson, S and Lore, J and Naujoks, D and Sitjes, AP and Schlisio, G and Sleczka, M and Wenzel, U and Winters, V and Plasma, Frigyes and Anda, Gábor and Cseh, Gábor and Ilkei, Tamás and Kocsis, Lajos Gábor and Náfrádi, Gábor and Récsei, S. and Szabó, V. and Szabolics, Tamás and Szepesi, Tamás Zoltán and Szőkefalvi-Nagy, Zoltán and Tulipán, S. and Vano, L. and Zoletnik, Sándor}, doi = {10.1088/1741-4326/ac1b68}, journal-iso = {NUCL FUSION}, journal = {NUCLEAR FUSION}, volume = {61}, unique-id = {32282428}, issn = {0029-5515}, year = {2021}, eissn = {1741-4326} } @article{MTMT:32282397, title = {Modelling of tungsten contamination and screening in WEST plasma discharges}, url = {https://m2.mtmt.hu/api/publication/32282397}, author = {Di, Genova S and Gallo, A and Fedorczak, N and Yang, H and Ciraolo, G and Romazanov, J and Marandet, Y and Bufferand, H and Guillemaut, C and Gunn, JP and Gil, C and Serre, E and Brezinsek, S and Plasma, Frigyes}, doi = {10.1088/1741-4326/ac2026}, journal-iso = {NUCL FUSION}, journal = {NUCLEAR FUSION}, volume = {61}, unique-id = {32282397}, issn = {0029-5515}, year = {2021}, eissn = {1741-4326} } @article{MTMT:32282097, title = {Deposition of 13C tracer and impurity elements on the divertor of Wendelstein 7-X}, url = {https://m2.mtmt.hu/api/publication/32282097}, author = {Vuoriheimo, T and Hakola, A and Likonen, J and Brezinsek, S and Dittmar, T and Mayer, M and Dhard, CP and Naujoks, D and Tuomisto, F and Plasma, Frigyes}, doi = {10.1088/1402-4896/ac2381}, journal-iso = {PHYS SCR}, journal = {PHYSICA SCRIPTA}, volume = {96}, unique-id = {32282097}, issn = {0031-8949}, year = {2021}, eissn = {1402-4896} } @article{MTMT:32183706, title = {Demonstration of Safe Termination of Megaampere Relativistic Electron Beams in Tokamaks}, url = {https://m2.mtmt.hu/api/publication/32183706}, author = {Reux, C and Paz-Soldan, C and Aleynikov, P and Bandaru, V and Ficker, O and Silburn, S and Hoelzl, M and Jachmich, S and Eidietis, N and Lehnen, M and Sridhar, S and Plasma, Frigyes}, doi = {10.1103/PhysRevLett.126.175001}, journal-iso = {PHYS REV LETT}, journal = {PHYSICAL REVIEW LETTERS}, volume = {126}, unique-id = {32183706}, issn = {0031-9007}, year = {2021}, eissn = {1079-7114} } @article{MTMT:32183553, title = {ASCOT orbit-following simulations of ion cyclotron heating with synthetic fast ion loss diagnostic: a first application to ASDEX Upgrade}, url = {https://m2.mtmt.hu/api/publication/32183553}, author = {Sipila, S and Varje, J and Johnson, T and Bilato, R and Galdon-Quiroga, J and Snicker, A and Kurki-Suonio, T and Sanchis, L and Gonzalez-Martin, J and Silvagni, D and Plasma, Frigyes}, doi = {10.1088/1741-4326/ac0e71}, journal-iso = {NUCL FUSION}, journal = {NUCLEAR FUSION}, volume = {61}, unique-id = {32183553}, issn = {0029-5515}, year = {2021}, eissn = {1741-4326} } @article{MTMT:32183549, title = {The separatrix operational space of ASDEX Upgrade due to interchange-drift-Alfven turbulence}, url = {https://m2.mtmt.hu/api/publication/32183549}, author = {Eich, T and Manz, P and Plasma, Frigyes}, doi = {10.1088/1741-4326/ac0412}, journal-iso = {NUCL FUSION}, journal = {NUCLEAR FUSION}, volume = {61}, unique-id = {32183549}, issn = {0029-5515}, year = {2021}, eissn = {1741-4326} }