Automated W7-X sawtooth crashes detection and characterization

Autor: M. Zanini, E. Aymerich, D. Böckenhoff, A. Merlo, K. Aleynikova, C. Brandt, H. Braune, K.J. Brunner, M. Hirsch, U. Höfel, J. Knauer, H.P. Laqua, S. Marsen, A. Pavone, K. Rahbarnia, J. Schilling, T. Smith, T. Stange, H. Thomsen, R.C. Wolf, A. Zocco, W7-X Team

Publikováno v: Nuclear Fusion, Vol 64, Iss 7, p 076027 (2024)

Sawtooth crashes are observed during ECCD experiments at the superconducting optimized stellarator Wendelstein 7-X. The study and the characterization are necessary in order to understand under which condition ECCD can be driven without posing a risk

Externí odkaz: https://doaj.org/article/5b1e705970064a3099fb2963e9669223

4D and 5D phase-space tomography using slowing-down physics regularization

Autor: W7-X Team, Schmidt, B. S., Salewski, M., Moseev, D., Baquero-Ruiz, M., Hansen, P. C., Eriksson, J., Ford, O., Gorini, G., Järleblad, H., Kazakov, Ye O., Kulla, D., Lazerson, S., Mencke, J. E., Mykytchuk, D., Nocente, M., Poloskei, P., Rud, M., Snicker, A., Stagner, L., Äkäslompolo, S.

Publikováno v: Schmidt, B S, Salewski, M, Moseev, D, Baquero-Ruiz, M, Hansen, P C, Eriksson, J, Ford, O, Gorini, G, Järleblad, H, Kazakov, Y O, Kulla, D, Lazerson, S, Mencke, J E, Mykytchuk, D, Nocente, M, Poloskei, P, Rud, M, Snicker, A, Stagner, L, Äkäslompolo, S & the W7-X Team 2023, ' 4D and 5D phase-space tomography using slowing-down physics regularization ', Nuclear Fusion, vol. 63, no. 7, 076016 . https://doi.org/10.1088/1741-4326/acd6a6
Schmidt, B S, Salewski, M, Moseev, D, Baquero-Ruiz, M, Hansen, P C, Eriksson, J, Ford, O, Gorini, G, Järleblad, H, Kazakov, Y O, Kulla, D, Lazerson, S, Mencke, J E, Mykytchuk, D, Nocente, M, Poloskei, P, Rud, M, Snicker, A, Stagner, L & Äkäslompolo, S 2023, ' 4D and 5D phase-space tomography using slowing-down physics regularization ', Nuclear Fusion, vol. 63, no. 7, 076016 . https://doi.org/10.1088/1741-4326/acd6a6
Nuclear Fusion
Nuclear Fusion, 63 (7), Article no: 076016

Funding Information: This work has been carried out within the framework of the EUROfusion Consortium, partially funded by the European Union via the Euratom Research and Training Programme (Grant Agreement No. 101052200—EUROfusion). The Swiss cont

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::289ac40f73a982db243b5fcae7483b66
https://cris.vtt.fi/en/publications/9d0d2ebb-475f-42d9-be2e-4b38391ffa75

Physics-regularized neural network of the ideal-MHD solution operator in Wendelstein 7-X configurations

Autor: Merlo, Andrea, Böckenhoff, Daniel, Schilling, Jonathan, Lazerson, Samuel Aaron, Pedersen, Thomas Sunn, W7-X Team

Publikováno v: Nuclear Fusion
Nuclear Fusion, 63 (6), Arkl.Nr.: 066020

The computational cost of constructing 3D magnetohydrodynamic (MHD) equilibria is one of the limiting factors in stellarator research and design. Although data-driven approaches have been proposed to provide fast 3D MHD equilibria, the accuracy with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7a48a9dc76e1090c685a05bcbebbbfd

Identification of fast ion wall loads in Wendelstein 7-X from thermographic measurements

Autor: Mark J H Cornelissen, Samuel A Lazerson, Yu Gao, Josefine H E Proll, Paul McNeely, Norbert Rust, Dirk Hartmann, Marcin W Jakubowski, Adnan Ali, Fabio Pisano, Holger Niemann, Aleix Puig Sitjes, Ralf König, Robert C Wolf, the W7-X Team

Publikováno v: Plasma Physics and Controlled Fusion, 64(12):125015. Institute of Physics
Plasma Physics and Controlled Fusion

Fast ion wall loads can result in excessively high heat fluxes to the plasma-facing components (PFCs). To allow for the development of mitigation strategies, and thereby protect the PFCs, the fast ion losses have to be predicted by faithful models. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::280c1b7047195ab6563fb67edd3990bf
http://www.scopus.com/inward/record.url?scp=85142492840&partnerID=8YFLogxK

On the interaction between the island divertor heat fluxes, the scrape-off layer radial electric field and the edge turbulence in Wendelstein 7-X plasmas

Autor: Maragkoudakis, E., Carralero, D., Estrada, T., Windisch, T., Gao, Y., Killer, C., Jakubowski, M., Puig Sitjes, A., Pisano, F., Sándor, H., Vecsei, M., Zoletnik, S., Cappa, A., Gantenbein, Gerd, Illy, Stefan, Jelonnek, John, Krier, Laurent, Thumm, Manfred, the W7-X Team

Publikováno v: Nuclear Fusion, 63 (2), Artkl.Nr.: 026011
Nuclear Fusion

The formation of the radial electric field, E r in the scrape-off layer (SOL) has been experimentally studied for attached divertor conditions in stellarator W7-X. The main objective of this study is to test the validity in a complex three-dimensiona

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4af1054fb5765cdb233771d839b32229
http://arxiv.org/abs/2210.02134