Overview of progress in European medium sized tokamaks towards an integrated plasma-edge/wall solution a a In the future we will refer to the author list of the paper as the EUROfusion MST1 Team

Meyer, H. and Eich, T. and Beurskens, M. and Coda, S. and Hakola, A. and Martin, P and Adamek, J. and Agostini, M. and Aguiam, D. and Ahn, J. and Aho-Mantila, L. and Akers, R. and Albanese, R. and Aledda, R. and Alessi, E. and Allan, S. and Alves, D. and Ambrosino, R. and Amicucci, L. and Anand, H. and Anastassiou, G. and Andrèbe, Y. and Angioni, C. and Apruzzese, G. and Ariola, M. and Arnichand, H. and Arter, W. and Baciero, A. and Barnes, M. and Barrera, L. and Behn, R. and Bencze, A. and Bluteau, M. and Gao, Y. and Hall, S. and Henderson, S. and Jones, O. and Jonsson, T. and Kim, D. and Kirk, A. and Li, L. and Liang, Y. and Liu, Y. Q. and McDermott, R. and McMillan, B. and Mayer, O. and Pisano, F. and Silva, A. and Simpson, J. and Zhang, W., ASDEX Upgrade team, MAST Team, TCV team (2017) Overview of progress in European medium sized tokamaks towards an integrated plasma-edge/wall solution a a In the future we will refer to the author list of the paper as the EUROfusion MST1 Team. Nuclear Fusion, 57 (10). 102014. ISSN 0029-5515 (https://doi.org/10.1088/1741-4326/aa6084)

[thumbnail of Meyer-etal-NF2017-Overview-progress-European-medium-sized-tokamaks-towards-integrated-plasma-edge-wall-solution]
Text. Filename: Meyer_etal_NF2017_Overview_progress_European_medium_sized_tokamaks_towards_integrated_plasma_edge_wall_solution.pdf
Final Published Version
License: Creative Commons Attribution 3.0 logo

Download (3MB)| Preview


Integrating the plasma core performance with an edge and scrape-off layer (SOL) that leads to tolerable heat and particle loads on the wall is a major challenge. The new European medium size tokamak task force (EU-MST) coordinates research on ASDEX Upgrade (AUG), MAST and TCV. This multi-machine approach within EU-MST, covering a wide parameter range, is instrumental to progress in the field, as ITER and DEMO core/pedestal and SOL parameters are not achievable simultaneously in present day devices. A two prong approach is adopted. On the one hand, scenarios with tolerable transient heat and particle loads, including active edge localised mode (ELM) control are developed. On the other hand, divertor solutions including advanced magnetic configurations are studied. Considerable progress has been made on both approaches, in particular in the fields of: ELM control with resonant magnetic perturbations (RMP), small ELM regimes, detachment onset and control, as well as filamentary scrape-off-layer transport. For example full ELM suppression has now been achieved on AUG at low collisionality with n = 2 RMP maintaining good confinement HH(98, y2)≈0.95 . Advances have been made with respect to detachment onset and control. Studies in advanced divertor configurations (Snowflake, Super-X and X-point target divertor) shed new light on SOL physics. Cross field filamentary transport has been characterised in a wide parameter regime on AUG, MAST and TCV progressing the theoretical and experimental understanding crucial for predicting first wall loads in ITER and DEMO. Conditions in the SOL also play a crucial role for ELM stability and access to small ELM regimes.


Meyer, H., Eich, T., Beurskens, M., Coda, S., Hakola, A., Martin, P, Adamek, J., Agostini, M., Aguiam, D., Ahn, J., Aho-Mantila, L., Akers, R., Albanese, R., Aledda, R., Alessi, E., Allan, S., Alves, D., Ambrosino, R., Amicucci, L., Anand, H., Anastassiou, G., Andrèbe, Y., Angioni, C., Apruzzese, G., Ariola, M., Arnichand, H., Arter, W., Baciero, A., Barnes, M., Barrera, L., Behn, R., Bencze, A., Bluteau, M. ORCID logoORCID: https://orcid.org/0000-0001-9498-8475, Gao, Y., Hall, S., Henderson, S. ORCID logoORCID: https://orcid.org/0000-0002-8205-4437, Jones, O., Jonsson, T., Kim, D., Kirk, A., Li, L., Liang, Y., Liu, Y. Q., McDermott, R., McMillan, B., Mayer, O., Pisano, F., Silva, A., Simpson, J. and Zhang, W.;