New H-mode regimes with small ELMs and high thermal confinement in the Joint European Torus

J. Garcia; E. De La Luna; M. Sertoli; F.J. Casson; S. Mazzi; Štancar; G. Szepesi; D. Frigione; L. Garzotti; F. Rimini; D. van Eester; P. Lomas; C. Sozzi; N. Aiba; M. Dicorato; A. Mariani; R. Coelho; L. Frasinetti; G.T.A. Huijsmans; F. Liu

doi:10.1063/5.0072236

New H-mode regimes with small ELMs and high thermal confinement in the Joint European Torus

J. Garcia (Corresponding author), E. De La Luna, M. Sertoli, F.J. Casson, S. Mazzi, Štancar, G. Szepesi, D. Frigione, L. Garzotti, F. Rimini, D. van Eester, P. Lomas, C. Sozzi, N. Aiba, M. Dicorato, A. Mariani, R. Coelho, L. Frasinetti, G.T.A. Huijsmans, F. Liu

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New H-mode regimes with high confinement, low core impurity accumulation, and small edge-localized mode perturbations have been obtained in magnetically confined plasmas at the Joint European Torus tokamak. Such regimes are achieved by means of optimized particle fueling conditions at high input power, current, and magnetic field, which lead to a self-organized state with a strong increase in rotation and ion temperature and a decrease in the edge density. An interplay between core and edge plasma regions leads to reduced turbulence levels and outward impurity convection. These results pave the way to an attractive alternative to the standard plasmas considered for fusion energy generation in a tokamak with a metallic wall environment such as the ones expected in ITER.

Originele taal-2	Engels
Artikelnummer	032505
Aantal pagina's	10
Tijdschrift	Physics of Plasmas
Volume	29
Nummer van het tijdschrift	3
DOI's	https://doi.org/10.1063/5.0072236
Status	Gepubliceerd - 1 mrt. 2022

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© 2022 Author(s).

Financiering

This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014–2018 and 2019–2020 under Grant Agreement No. 633053. The views and opinions express herein do not necessarily reflect those of the European Commission. This research was supported in part by Grant No. FIS2017–85252-R of the Spanish Research Agency, including ERDF-European Union funding.

Financiers	Financiernummer
Spanish Research Agency
European Union’s Horizon Europe research and innovation programme
H2020 Euratom	FIS2017–85252-R, 633053

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Garcia, J., De La Luna, E., Sertoli, M., Casson, F. J., Mazzi, S., Štancar, Szepesi, G., Frigione, D., Garzotti, L., Rimini, F., van Eester, D., Lomas, P., Sozzi, C., Aiba, N., Dicorato, M., Mariani, A., Coelho, R., Frasinetti, L., Huijsmans, G. T. A., & Liu, F. (2022). New H-mode regimes with small ELMs and high thermal confinement in the Joint European Torus. Physics of Plasmas, 29(3), Artikel 032505. https://doi.org/10.1063/5.0072236

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title = "New H-mode regimes with small ELMs and high thermal confinement in the Joint European Torus",

abstract = "New H-mode regimes with high confinement, low core impurity accumulation, and small edge-localized mode perturbations have been obtained in magnetically confined plasmas at the Joint European Torus tokamak. Such regimes are achieved by means of optimized particle fueling conditions at high input power, current, and magnetic field, which lead to a self-organized state with a strong increase in rotation and ion temperature and a decrease in the edge density. An interplay between core and edge plasma regions leads to reduced turbulence levels and outward impurity convection. These results pave the way to an attractive alternative to the standard plasmas considered for fusion energy generation in a tokamak with a metallic wall environment such as the ones expected in ITER. ",

author = "J. Garcia and {De La Luna}, E. and M. Sertoli and F.J. Casson and S. Mazzi and {\v S}tancar and G. Szepesi and D. Frigione and L. Garzotti and F. Rimini and {van Eester}, D. and P. Lomas and C. Sozzi and N. Aiba and M. Dicorato and A. Mariani and R. Coelho and L. Frasinetti and G.T.A. Huijsmans and F. Liu",

note = "Funding Information: This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014–2018 and 2019–2020 under Grant Agreement No. 633053. The views and opinions express herein do not necessarily reflect those of the European Commission. This research was supported in part by Grant No. FIS2017–85252-R of the Spanish Research Agency, including ERDF-European Union funding.",

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Garcia, J, De La Luna, E, Sertoli, M, Casson, FJ, Mazzi, S, Štancar, Szepesi, G, Frigione, D, Garzotti, L, Rimini, F, van Eester, D, Lomas, P, Sozzi, C, Aiba, N, Dicorato, M, Mariani, A, Coelho, R, Frasinetti, L, Huijsmans, GTA & Liu, F 2022, 'New H-mode regimes with small ELMs and high thermal confinement in the Joint European Torus', Physics of Plasmas, vol. 29, nr. 3, 032505. https://doi.org/10.1063/5.0072236

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AU - Garcia, J.

AU - De La Luna, E.

AU - Sertoli, M.

AU - Casson, F.J.

AU - Mazzi, S.

AU - Štancar,

AU - Szepesi, G.

AU - Frigione, D.

AU - Garzotti, L.

AU - Rimini, F.

AU - van Eester, D.

AU - Lomas, P.

AU - Sozzi, C.

AU - Aiba, N.

AU - Dicorato, M.

AU - Mariani, A.

AU - Coelho, R.

AU - Frasinetti, L.

AU - Huijsmans, G.T.A.

AU - Liu, F.

N1 - Funding Information: This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014–2018 and 2019–2020 under Grant Agreement No. 633053. The views and opinions express herein do not necessarily reflect those of the European Commission. This research was supported in part by Grant No. FIS2017–85252-R of the Spanish Research Agency, including ERDF-European Union funding.

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N2 - New H-mode regimes with high confinement, low core impurity accumulation, and small edge-localized mode perturbations have been obtained in magnetically confined plasmas at the Joint European Torus tokamak. Such regimes are achieved by means of optimized particle fueling conditions at high input power, current, and magnetic field, which lead to a self-organized state with a strong increase in rotation and ion temperature and a decrease in the edge density. An interplay between core and edge plasma regions leads to reduced turbulence levels and outward impurity convection. These results pave the way to an attractive alternative to the standard plasmas considered for fusion energy generation in a tokamak with a metallic wall environment such as the ones expected in ITER.

AB - New H-mode regimes with high confinement, low core impurity accumulation, and small edge-localized mode perturbations have been obtained in magnetically confined plasmas at the Joint European Torus tokamak. Such regimes are achieved by means of optimized particle fueling conditions at high input power, current, and magnetic field, which lead to a self-organized state with a strong increase in rotation and ion temperature and a decrease in the edge density. An interplay between core and edge plasma regions leads to reduced turbulence levels and outward impurity convection. These results pave the way to an attractive alternative to the standard plasmas considered for fusion energy generation in a tokamak with a metallic wall environment such as the ones expected in ITER.

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New H-mode regimes with small ELMs and high thermal confinement in the Joint European Torus

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