Overview of the TJ-II stellarator research programme towards model validation in fusion plasmas

C. Hidalgo; E. Ascasíbar; D. Alegre; A. Alonso; J. Alonso; R. Antón; A. Baciero; J. Baldzuhn; J. M. Barcala; L. Barrera; E. Blanco; J. Botija; L. Bueno; S. Cabrera; A. De Castro; E. De La Cal; I. Calvo; A. Cappa; D. Carralero; R. Carrasco; B. Carreras; R. Castro; A. De Castro; L. Cebrián; A. A. Chmyga; M. Chamorro; P. Colino; F. De Aragón; M. Drabinskiy; J. Duque; L. Eliseev; F. J. Escoto; T. Estrada; M. Ezzat; F. Fraguas; D. Fernández-Ruiz; J. M. Fontdecaba; A. Gabriel; D. Gadariya; L. García; I. García-Cortés; R. García-Gómez; J. M. García-Regaña; A. González-Jerez; G. Grenfell; J. Guasp; V. Guisse; J. Hernández-Sánchez; J. Hernanz; A. Jiménez-Denche; P. Khabanov; N. Kharchev; R. Kleiber; F. Koechl; T. Kobayashi; G. Kocsis; M. Koepke; A. S. Kozachek; L. Krupnik; F. Lapayese; M. Liniers; B. Liu; D. López-Bruna; B. López-Miranda; U. Losada; E. De La Luna; S. E. Lysenko; F. Martín-Díaz; G. Martín-Gómez; E. Maragkoudakis; J. Martínez-Fernández; K. J. McCarthy; F. Medina; M. Medrano; A. V. Melnikov; P. Méndez; F. J. Miguel; B. Van Milligen; A. Molinero; G. Motojima; S. Mulas; Y. Narushima; M. Navarro; I. Nedzelskiy; R. Nuñez; M. Ochando; S. Ohshima; E. Oyarzábal; J. L. De Pablos; F. Palomares; N. Panadero; F. Papoušek; F. Parra; C. Pastor; I. Pastor; A. De La Peña; R. Peralta; A. Pereira; P. Pons-Villalonga; H. Polaino; A. B. Portas; E. Poveda; F. J. Ramos; G. A. Rattá; M. Redondo; C. Reynoso; E. Rincón; C. Rodríguez-Fernández; L. Rodríguez-Rodrigo; A. Ros; E. Sánchez; J. Sánchez; E. Sánchez-Sarabia; S. Satake; J. A. Sebastián; R. Sharma; N. Smith; C. Silva; E. R. Solano; A. Soleto; M. Spolaore; T. Szepesi; F. L. Tabarés; D. Tafalla; H. Takahashi; N. Tamura; H. Thienpondt; A. Tolkachev; R. Unamuno; J. Varela; J. Vega; J. L. Velasco; I. Voldiner; S. Yamamoto; Tj-Ii Team The Tj-Ii Team

doi:10.1088/1741-4326/ac2ca1

Overview of the TJ-II stellarator research programme towards model validation in fusion plasmas

C. Hidalgo, E. Ascasíbar, D. Alegre, A. Alonso, J. Alonso, R. Antón, A. Baciero, J. Baldzuhn, J. M. Barcala, L. Barrera, E. Blanco, J. Botija, L. Bueno, S. Cabrera, A. De Castro, E. De La Cal, I. Calvo, A. Cappa, D. Carralero, R. CarrascoB. Carreras, R. Castro, A. De Castro, L. Cebrián, A. A. Chmyga, M. Chamorro, P. Colino, F. De Aragón, M. Drabinskiy, J. Duque, L. Eliseev, F. J. Escoto, T. Estrada, M. Ezzat, F. Fraguas, D. Fernández-Ruiz, J. M. Fontdecaba, A. Gabriel, D. Gadariya, L. García, I. García-Cortés, R. García-Gómez, J. M. García-Regaña, A. González-Jerez, G. Grenfell, J. Guasp, V. Guisse, J. Hernández-Sánchez, J. Hernanz, A. Jiménez-Denche, P. Khabanov, N. Kharchev, R. Kleiber, F. Koechl, T. Kobayashi, G. Kocsis, M. Koepke, A. S. Kozachek, L. Krupnik, F. Lapayese, M. Liniers, B. Liu, D. López-Bruna, B. López-Miranda, U. Losada, E. De La Luna, S. E. Lysenko, F. Martín-Díaz, G. Martín-Gómez, E. Maragkoudakis, J. Martínez-Fernández, K. J. McCarthy, F. Medina, M. Medrano, A. V. Melnikov, P. Méndez, F. J. Miguel, B. Van Milligen, A. Molinero, G. Motojima, S. Mulas, Y. Narushima, M. Navarro, I. Nedzelskiy, R. Nuñez, M. Ochando, S. Ohshima, E. Oyarzábal, J. L. De Pablos, F. Palomares, N. Panadero, F. Papoušek, F. Parra, C. Pastor, I. Pastor, A. De La Peña, R. Peralta, A. Pereira, P. Pons-Villalonga, H. Polaino, A. B. Portas, E. Poveda, F. J. Ramos, G. A. Rattá, M. Redondo, C. Reynoso, E. Rincón, C. Rodríguez-Fernández, L. Rodríguez-Rodrigo, A. Ros, E. Sánchez, J. Sánchez, E. Sánchez-Sarabia, S. Satake, J. A. Sebastián, R. Sharma, N. Smith, C. Silva, E. R. Solano, A. Soleto, M. Spolaore, T. Szepesi, F. L. Tabarés, D. Tafalla, H. Takahashi, N. Tamura, H. Thienpondt, A. Tolkachev, R. Unamuno, J. Varela, J. Vega, J. L. Velasco, I. Voldiner, S. Yamamoto, Tj-Ii Team The Tj-Ii Team

Research output: Contribution to journal › Review article › peer-review

6 Scopus citations

Abstract

TJ-II stellarator results on modelling and validation of plasma flow asymmetries due to on-surface potential variations, plasma fuelling physics, Alfvén eigenmodes (AEs) control and stability, the interplay between turbulence and neoclassical (NC) mechanisms and liquid metals are reported. Regarding the validation of the neoclassically predicted potential asymmetries, its impact on the radial electric field along the flux surface has been successfully validated against Doppler reflectometry measurements. Research on the physics and modelling of plasma core fuelling with pellets and tracer encapsulated solid pellet injection has shown that, although post-injection particle radial redistributions can be understood qualitatively from NC mechanisms, turbulence and fluctuations are strongly affected during the ablation process. Advanced analysis tools based on transfer entropy have shown that radial electric fields do not only affect the radial turbulence correlation length but are also capable of reducing the propagation of turbulence from the edge into the scrape-off layer. Direct experimental observation of long range correlated structures show that zonal flow structures are ubiquitous in the whole plasma cross-section in the TJ-II stellarator. Alfvénic activity control strategies using ECRH and ECCD as well as the relation between zonal structures and AEs are reported. Finally, the behaviour of liquid metals exposed to hot and cold plasmas in a capillary porous system container was investigated.

Original language	English
Article number	042025
Journal	Nuclear Fusion
Volume	62
Issue number	4
DOIs	https://doi.org/10.1088/1741-4326/ac2ca1
State	Published - Apr 2022

Bibliographical 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 expressed herein do not necessarily reflect those of the European Commission. It has been partially funded by the Ministerio de Ciencia e Inovación of Spain under projects FIS2017-89326-R and PGC2018-097279-B-I00. The research done by Kurchatov team supported by Russian Science Foundation, Project 19-12-00312. FP thanks the ERASMUS+ programme for the opportunity to perform this research while visiting Ciemat. AVM was partly supported by the Competitiveness Program of NRNU MEPhI. MEK gratefully acknowledges partial support from US DOE Grant DE-SC0020269.

Publisher Copyright:
© EURATOM 2022.

Keywords

plasma
stellarator
transport

Access to Document

10.1088/1741-4326/ac2ca1

Cite this

Hidalgo, C., Ascasíbar, E., Alegre, D., Alonso, A., Alonso, J., Antón, R., Baciero, A., Baldzuhn, J., Barcala, J. M., Barrera, L., Blanco, E., Botija, J., Bueno, L., Cabrera, S., De Castro, A., Cal, E. D. L., Calvo, I., Cappa, A., Carralero, D., ... The Tj-Ii Team, T-I. T. (2022). Overview of the TJ-II stellarator research programme towards model validation in fusion plasmas. Nuclear Fusion, 62(4), Article 042025. https://doi.org/10.1088/1741-4326/ac2ca1

@article{413e90d639f540c6b9f3422f7fe29523,

title = "Overview of the TJ-II stellarator research programme towards model validation in fusion plasmas",

abstract = "TJ-II stellarator results on modelling and validation of plasma flow asymmetries due to on-surface potential variations, plasma fuelling physics, Alfv{\'e}n eigenmodes (AEs) control and stability, the interplay between turbulence and neoclassical (NC) mechanisms and liquid metals are reported. Regarding the validation of the neoclassically predicted potential asymmetries, its impact on the radial electric field along the flux surface has been successfully validated against Doppler reflectometry measurements. Research on the physics and modelling of plasma core fuelling with pellets and tracer encapsulated solid pellet injection has shown that, although post-injection particle radial redistributions can be understood qualitatively from NC mechanisms, turbulence and fluctuations are strongly affected during the ablation process. Advanced analysis tools based on transfer entropy have shown that radial electric fields do not only affect the radial turbulence correlation length but are also capable of reducing the propagation of turbulence from the edge into the scrape-off layer. Direct experimental observation of long range correlated structures show that zonal flow structures are ubiquitous in the whole plasma cross-section in the TJ-II stellarator. Alfv{\'e}nic activity control strategies using ECRH and ECCD as well as the relation between zonal structures and AEs are reported. Finally, the behaviour of liquid metals exposed to hot and cold plasmas in a capillary porous system container was investigated.",

keywords = "plasma, stellarator, transport",

author = "C. Hidalgo and E. Ascas{\'i}bar and D. Alegre and A. Alonso and J. Alonso and R. Ant{\'o}n and A. Baciero and J. Baldzuhn and Barcala, {J. M.} and L. Barrera and E. Blanco and J. Botija and L. Bueno and S. Cabrera and {De Castro}, A. and Cal, {E. De La} and I. Calvo and A. Cappa and D. Carralero and R. Carrasco and B. Carreras and R. Castro and {De Castro}, A. and L. Cebri{\'a}n and Chmyga, {A. A.} and M. Chamorro and P. Colino and {De Arag{\'o}n}, F. and M. Drabinskiy and J. Duque and L. Eliseev and Escoto, {F. J.} and T. Estrada and M. Ezzat and F. Fraguas and D. Fern{\'a}ndez-Ruiz and Fontdecaba, {J. M.} and A. Gabriel and D. Gadariya and L. Garc{\'i}a and I. Garc{\'i}a-Cort{\'e}s and R. Garc{\'i}a-G{\'o}mez and Garc{\'i}a-Rega{\~n}a, {J. M.} and A. Gonz{\'a}lez-Jerez and G. Grenfell and J. Guasp and V. Guisse and J. Hern{\'a}ndez-S{\'a}nchez and J. Hernanz and A. Jim{\'e}nez-Denche and P. Khabanov and N. Kharchev and R. Kleiber and F. Koechl and T. Kobayashi and G. Kocsis and M. Koepke and Kozachek, {A. S.} and L. Krupnik and F. Lapayese and M. Liniers and B. Liu and D. L{\'o}pez-Bruna and B. L{\'o}pez-Miranda and U. Losada and Luna, {E. De La} and Lysenko, {S. E.} and F. Mart{\'i}n-D{\'i}az and G. Mart{\'i}n-G{\'o}mez and E. Maragkoudakis and J. Mart{\'i}nez-Fern{\'a}ndez and McCarthy, {K. J.} and F. Medina and M. Medrano and Melnikov, {A. V.} and P. M{\'e}ndez and Miguel, {F. J.} and {Van Milligen}, B. and A. Molinero and G. Motojima and S. Mulas and Y. Narushima and M. Navarro and I. Nedzelskiy and R. Nu{\~n}ez and M. Ochando and S. Ohshima and E. Oyarz{\'a}bal and {De Pablos}, {J. L.} and F. Palomares and N. Panadero and F. Papou{\v s}ek and F. Parra and C. Pastor and I. Pastor and Pe{\~n}a, {A. De La} and R. Peralta and A. Pereira and P. Pons-Villalonga and H. Polaino and Portas, {A. B.} and E. Poveda and Ramos, {F. J.} and Ratt{\'a}, {G. A.} and M. Redondo and C. Reynoso and E. Rinc{\'o}n and C. Rodr{\'i}guez-Fern{\'a}ndez and L. Rodr{\'i}guez-Rodrigo and A. Ros and E. S{\'a}nchez and J. S{\'a}nchez and E. S{\'a}nchez-Sarabia and S. Satake and Sebasti{\'a}n, {J. A.} and R. Sharma and N. Smith and C. Silva and Solano, {E. R.} and A. Soleto and M. Spolaore and T. Szepesi and Tabar{\'e}s, {F. L.} and D. Tafalla and H. Takahashi and N. Tamura and H. Thienpondt and A. Tolkachev and R. Unamuno and J. Varela and J. Vega and Velasco, {J. L.} and I. Voldiner and S. Yamamoto and {The Tj-Ii Team}, {Tj-Ii Team}",

note = "Publisher Copyright: {\textcopyright} EURATOM 2022.",

year = "2022",

month = apr,

doi = "10.1088/1741-4326/ac2ca1",

language = "Ingl{\'e}s",

volume = "62",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing Ltd.",

number = "4",

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Hidalgo, C, Ascasíbar, E, Alegre, D, Alonso, A, Alonso, J, Antón, R, Baciero, A, Baldzuhn, J, Barcala, JM, Barrera, L, Blanco, E, Botija, J, Bueno, L, Cabrera, S, De Castro, A, Cal, EDL, Calvo, I, Cappa, A, Carralero, D, Carrasco, R, Carreras, B, Castro, R, De Castro, A, Cebrián, L, Chmyga, AA, Chamorro, M, Colino, P, De Aragón, F, Drabinskiy, M, Duque, J, Eliseev, L, Escoto, FJ, Estrada, T, Ezzat, M, Fraguas, F, Fernández-Ruiz, D, Fontdecaba, JM, Gabriel, A, Gadariya, D, García, L, García-Cortés, I, García-Gómez, R, García-Regaña, JM, González-Jerez, A, Grenfell, G, Guasp, J, Guisse, V, Hernández-Sánchez, J, Hernanz, J, Jiménez-Denche, A, Khabanov, P, Kharchev, N, Kleiber, R, Koechl, F, Kobayashi, T, Kocsis, G, Koepke, M, Kozachek, AS, Krupnik, L, Lapayese, F, Liniers, M, Liu, B, López-Bruna, D, López-Miranda, B, Losada, U, Luna, EDL, Lysenko, SE, Martín-Díaz, F, Martín-Gómez, G, Maragkoudakis, E, Martínez-Fernández, J, McCarthy, KJ, Medina, F, Medrano, M, Melnikov, AV, Méndez, P, Miguel, FJ, Van Milligen, B, Molinero, A, Motojima, G, Mulas, S, Narushima, Y, Navarro, M, Nedzelskiy, I, Nuñez, R, Ochando, M, Ohshima, S, Oyarzábal, E, De Pablos, JL, Palomares, F, Panadero, N, Papoušek, F, Parra, F, Pastor, C, Pastor, I, Peña, ADL, Peralta, R, Pereira, A, Pons-Villalonga, P, Polaino, H, Portas, AB, Poveda, E, Ramos, FJ, Rattá, GA, Redondo, M, Reynoso, C, Rincón, E, Rodríguez-Fernández, C, Rodríguez-Rodrigo, L, Ros, A, Sánchez, E, Sánchez, J, Sánchez-Sarabia, E, Satake, S, Sebastián, JA, Sharma, R, Smith, N, Silva, C, Solano, ER, Soleto, A, Spolaore, M, Szepesi, T, Tabarés, FL, Tafalla, D, Takahashi, H, Tamura, N, Thienpondt, H, Tolkachev, A, Unamuno, R, Varela, J, Vega, J, Velasco, JL, Voldiner, I, Yamamoto, S & The Tj-Ii Team, T-IT 2022, 'Overview of the TJ-II stellarator research programme towards model validation in fusion plasmas', Nuclear Fusion, vol. 62, no. 4, 042025. https://doi.org/10.1088/1741-4326/ac2ca1

TY - JOUR

T1 - Overview of the TJ-II stellarator research programme towards model validation in fusion plasmas

AU - Hidalgo, C.

AU - Ascasíbar, E.

AU - Alegre, D.

AU - Alonso, A.

AU - Alonso, J.

AU - Antón, R.

AU - Baciero, A.

AU - Baldzuhn, J.

AU - Barcala, J. M.

AU - Barrera, L.

AU - Blanco, E.

AU - Botija, J.

AU - Bueno, L.

AU - Cabrera, S.

AU - De Castro, A.

AU - Cal, E. De La

AU - Calvo, I.

AU - Cappa, A.

AU - Carralero, D.

AU - Carrasco, R.

AU - Carreras, B.

AU - Castro, R.

AU - De Castro, A.

AU - Cebrián, L.

AU - Chmyga, A. A.

AU - Chamorro, M.

AU - Colino, P.

AU - De Aragón, F.

AU - Drabinskiy, M.

AU - Duque, J.

AU - Eliseev, L.

AU - Escoto, F. J.

AU - Estrada, T.

AU - Ezzat, M.

AU - Fraguas, F.

AU - Fernández-Ruiz, D.

AU - Fontdecaba, J. M.

AU - Gabriel, A.

AU - Gadariya, D.

AU - García, L.

AU - García-Cortés, I.

AU - García-Gómez, R.

AU - García-Regaña, J. M.

AU - González-Jerez, A.

AU - Grenfell, G.

AU - Guasp, J.

AU - Guisse, V.

AU - Hernández-Sánchez, J.

AU - Hernanz, J.

AU - Jiménez-Denche, A.

AU - Khabanov, P.

AU - Kharchev, N.

AU - Kleiber, R.

AU - Koechl, F.

AU - Kobayashi, T.

AU - Kocsis, G.

AU - Koepke, M.

AU - Kozachek, A. S.

AU - Krupnik, L.

AU - Lapayese, F.

AU - Liniers, M.

AU - Liu, B.

AU - López-Bruna, D.

AU - López-Miranda, B.

AU - Losada, U.

AU - Luna, E. De La

AU - Lysenko, S. E.

AU - Martín-Díaz, F.

AU - Martín-Gómez, G.

AU - Maragkoudakis, E.

AU - Martínez-Fernández, J.

AU - McCarthy, K. J.

AU - Medina, F.

AU - Medrano, M.

AU - Melnikov, A. V.

AU - Méndez, P.

AU - Miguel, F. J.

AU - Van Milligen, B.

AU - Molinero, A.

AU - Motojima, G.

AU - Mulas, S.

AU - Narushima, Y.

AU - Navarro, M.

AU - Nedzelskiy, I.

AU - Nuñez, R.

AU - Ochando, M.

AU - Ohshima, S.

AU - Oyarzábal, E.

AU - De Pablos, J. L.

AU - Palomares, F.

AU - Panadero, N.

AU - Papoušek, F.

AU - Parra, F.

AU - Pastor, C.

AU - Pastor, I.

AU - Peña, A. De La

AU - Peralta, R.

AU - Pereira, A.

AU - Pons-Villalonga, P.

AU - Polaino, H.

AU - Portas, A. B.

AU - Poveda, E.

AU - Ramos, F. J.

AU - Rattá, G. A.

AU - Redondo, M.

AU - Reynoso, C.

AU - Rincón, E.

AU - Rodríguez-Fernández, C.

AU - Rodríguez-Rodrigo, L.

AU - Ros, A.

AU - Sánchez, E.

AU - Sánchez, J.

AU - Sánchez-Sarabia, E.

AU - Satake, S.

AU - Sebastián, J. A.

AU - Sharma, R.

AU - Smith, N.

AU - Silva, C.

AU - Solano, E. R.

AU - Soleto, A.

AU - Spolaore, M.

AU - Szepesi, T.

AU - Tabarés, F. L.

AU - Tafalla, D.

AU - Takahashi, H.

AU - Tamura, N.

AU - Thienpondt, H.

AU - Tolkachev, A.

AU - Unamuno, R.

AU - Varela, J.

AU - Vega, J.

AU - Velasco, J. L.

AU - Voldiner, I.

AU - Yamamoto, S.

AU - The Tj-Ii Team, Tj-Ii Team

PY - 2022/4

Y1 - 2022/4

N2 - TJ-II stellarator results on modelling and validation of plasma flow asymmetries due to on-surface potential variations, plasma fuelling physics, Alfvén eigenmodes (AEs) control and stability, the interplay between turbulence and neoclassical (NC) mechanisms and liquid metals are reported. Regarding the validation of the neoclassically predicted potential asymmetries, its impact on the radial electric field along the flux surface has been successfully validated against Doppler reflectometry measurements. Research on the physics and modelling of plasma core fuelling with pellets and tracer encapsulated solid pellet injection has shown that, although post-injection particle radial redistributions can be understood qualitatively from NC mechanisms, turbulence and fluctuations are strongly affected during the ablation process. Advanced analysis tools based on transfer entropy have shown that radial electric fields do not only affect the radial turbulence correlation length but are also capable of reducing the propagation of turbulence from the edge into the scrape-off layer. Direct experimental observation of long range correlated structures show that zonal flow structures are ubiquitous in the whole plasma cross-section in the TJ-II stellarator. Alfvénic activity control strategies using ECRH and ECCD as well as the relation between zonal structures and AEs are reported. Finally, the behaviour of liquid metals exposed to hot and cold plasmas in a capillary porous system container was investigated.

AB - TJ-II stellarator results on modelling and validation of plasma flow asymmetries due to on-surface potential variations, plasma fuelling physics, Alfvén eigenmodes (AEs) control and stability, the interplay between turbulence and neoclassical (NC) mechanisms and liquid metals are reported. Regarding the validation of the neoclassically predicted potential asymmetries, its impact on the radial electric field along the flux surface has been successfully validated against Doppler reflectometry measurements. Research on the physics and modelling of plasma core fuelling with pellets and tracer encapsulated solid pellet injection has shown that, although post-injection particle radial redistributions can be understood qualitatively from NC mechanisms, turbulence and fluctuations are strongly affected during the ablation process. Advanced analysis tools based on transfer entropy have shown that radial electric fields do not only affect the radial turbulence correlation length but are also capable of reducing the propagation of turbulence from the edge into the scrape-off layer. Direct experimental observation of long range correlated structures show that zonal flow structures are ubiquitous in the whole plasma cross-section in the TJ-II stellarator. Alfvénic activity control strategies using ECRH and ECCD as well as the relation between zonal structures and AEs are reported. Finally, the behaviour of liquid metals exposed to hot and cold plasmas in a capillary porous system container was investigated.

KW - plasma

KW - stellarator

KW - transport

UR - http://www.scopus.com/inward/record.url?scp=85128814453&partnerID=8YFLogxK

U2 - 10.1088/1741-4326/ac2ca1

DO - 10.1088/1741-4326/ac2ca1

M3 - Artículo de revisión

AN - SCOPUS:85128814453

SN - 0029-5515

VL - 62

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 4

M1 - 042025

ER -

Overview of the TJ-II stellarator research programme towards model validation in fusion plasmas

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