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Moiseenko VE, Kovtun YV, Lozin AV, Pavlichenko RO, Shapoval AN, Grigor’eva LI, Kozulya MM, Maznichenko SM, Korovin VB, Kramskoy ED, Zamanov NV, Siusko YV, Baron DI, Krasiuk AY, Romanov VS, Garkusha IE, Wauters T, Alonso A, Brakel R, Dinklage A, Hartmann D, Kazakov Y, Laqua H, Ongena J, Stange T. Plasma Production in ICRF in the Uragan-2M Stellarator in Hydrogen–Helium Gas Mixture. J Fusion Energ 2022. [DOI: 10.1007/s10894-022-00326-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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2
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Goriaev A, Wauters T, Möller S, Brakel R, Brezinsek S, Buermans J, Crombé K, Dinklage A, Habrichs R, Höschen D, Krause M, Kovtun Y, López-Rodríguez D, Louche F, Moon S, Nicolai D, Thomas J, Ragona R, Rubel M, Rüttgers T, Petersson P, Brunsell P, Linsmeier C, Van Schoor M. The upgraded TOMAS device: A toroidal plasma facility for wall conditioning, plasma production, and plasma-surface interaction studies. Rev Sci Instrum 2021; 92:023506. [PMID: 33648119 DOI: 10.1063/5.0033229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 01/12/2021] [Indexed: 06/12/2023]
Abstract
The Toroidal Magnetized System device has been significantly upgraded to enable development of various wall conditioning techniques, including methods based on ion and electron cyclotron (IC/EC) range of frequency plasmas, and to complement plasma-wall interaction research in tokamaks and stellarators. The toroidal magnetic field generated by 16 coils can reach its maximum of 125 mT on the toroidal axis. The EC system is operated at 2.45 GHz with up to 6 kW forward power. The IC system can couple up to 6 kW in the frequency range of 10 MHz-50 MHz. The direct current glow discharge system is based on a graphite anode with a maximum voltage of 1.5 kV and a current of 6 A. A load-lock system with a vertical manipulator allows exposure of material samples. A number of diagnostics have been installed: single- and triple-pin Langmuir probes for radial plasma profiles, a time-of-flight neutral particle analyzer capable of detecting neutrals in the energy range of 10 eV-1000 eV, and a quadrupole mass spectrometer and video systems for plasma imaging. The majority of systems and diagnostics are controlled by the Siemens SIMATIC S7 system, which also provides safety interlocks.
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Affiliation(s)
- A Goriaev
- Laboratory for Plasma Physics, LPP-ERM/KMS, Trilateral Euregio Cluster (TEC) Partner, Brussels, Belgium
| | - T Wauters
- Laboratory for Plasma Physics, LPP-ERM/KMS, Trilateral Euregio Cluster (TEC) Partner, Brussels, Belgium
| | - S Möller
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - R Brakel
- Max-Planck-Institute for Plasma Physics, Greifswald, Germany
| | - S Brezinsek
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - J Buermans
- Laboratory for Plasma Physics, LPP-ERM/KMS, Trilateral Euregio Cluster (TEC) Partner, Brussels, Belgium
| | - K Crombé
- Laboratory for Plasma Physics, LPP-ERM/KMS, Trilateral Euregio Cluster (TEC) Partner, Brussels, Belgium
| | - A Dinklage
- Max-Planck-Institute for Plasma Physics, Greifswald, Germany
| | - R Habrichs
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - D Höschen
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - M Krause
- Max-Planck-Institute for Plasma Physics, Greifswald, Germany
| | - Yu Kovtun
- Institute of Plasma Physics, NSC KIPT, Kharkov, Ukraine
| | | | - F Louche
- Laboratory for Plasma Physics, LPP-ERM/KMS, Trilateral Euregio Cluster (TEC) Partner, Brussels, Belgium
| | - S Moon
- Royal Institute of Technology (KTH), Stockholm, Sweden
| | - D Nicolai
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - J Thomas
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - R Ragona
- Laboratory for Plasma Physics, LPP-ERM/KMS, Trilateral Euregio Cluster (TEC) Partner, Brussels, Belgium
| | - M Rubel
- Royal Institute of Technology (KTH), Stockholm, Sweden
| | - T Rüttgers
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - P Petersson
- Royal Institute of Technology (KTH), Stockholm, Sweden
| | - P Brunsell
- Royal Institute of Technology (KTH), Stockholm, Sweden
| | - Ch Linsmeier
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - M Van Schoor
- Laboratory for Plasma Physics, LPP-ERM/KMS, Trilateral Euregio Cluster (TEC) Partner, Brussels, Belgium
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3
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van Eeten P, Bosch H, Brakel R, Degenkolbe S. Organizing Wendelstein 7-X device operation. Fusion Engineering and Design 2020. [DOI: 10.1016/j.fusengdes.2020.111843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Grahl M, Spring A, Bluhm T, Bosch HS, Brakel R, Dumke S, van Eeten P, Grün M, Hirsch M, Holtz A, Laqua H, Lewerentz M, Riemann H, Werner A. The new W7-X logbook – A software for effective experiment documentation and collaborative research at Wendelstein 7-X. Fusion Engineering and Design 2019. [DOI: 10.1016/j.fusengdes.2019.02.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Yamada H, Ida K, Murakami S, Watanabe KY, Ascasibar E, Brakel R, Dinklage A, Harris JH, Okamura S, Sano F, Stroth U, Inagaki S, Tanaka K, Goto M, Nishimura K, Narihara K, Morita S, Sakakibara S, Peterson BJ, Sakamoto R, Miyazawa J, Morisaki T, Osakabe M, Toi K, Tamura N, Ikeda K, Yamazaki K, Kawahata K, Kaneko O, Ohyabu N, Komori A, Motojima O. Configuration Effect on Energy Confinement and Local Transport in LHD and Contribution to the International Stellarator Database. Fusion Science and Technology 2017. [DOI: 10.13182/fst04-a543] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Yamada
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - K. Ida
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - S. Murakami
- Kyoto University, Department of Nuclear Engineering, Kyoto 606-8501, Japan
| | - K. Y. Watanabe
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | | | - R. Brakel
- Max-Planck-Institut für Plasmaphysik, D-17941 Greifswald, Germany
| | - A. Dinklage
- Max-Planck-Institut für Plasmaphysik, D-17941 Greifswald, Germany
| | - J. H. Harris
- Australian National University, Plasma Research Laboratory, Canberra, ACT 0200, Australia
| | - S. Okamura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - F. Sano
- Kyoto University, Department of Nuclear Engineering, Kyoto 606-8501, Japan
| | - U. Stroth
- University of Kiel, Institute of Experimental and Applied Physics, 24098 Kiel, Germany
| | - S. Inagaki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - K. Tanaka
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - M. Goto
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - K. Nishimura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - K. Narihara
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - S. Morita
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - S. Sakakibara
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - B. J. Peterson
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - R. Sakamoto
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | | | - T. Morisaki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - M. Osakabe
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - K. Toi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - N. Tamura
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - K. Ikeda
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - K. Yamazaki
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - K. Kawahata
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - O. Kaneko
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - N. Ohyabu
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - A. Komori
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
| | - O. Motojima
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi Gifu-ken 509-5292, Japan
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6
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Dinklage A, Ascasíbar E, Beidler CD, Brakel R, Geiger J, Harris JH, Kus A, Murakami S, Okamura S, Preuss R, Sano F, Stroth U, Suzuki Y, Talmadge J, Tribaldos V, Watanabe KY, Weller A, Yamada H, Yokoyama M. Assessment of Global Stellarator Confinement: Status of the International Stellarator Confinement Database. Fusion Science and Technology 2017. [DOI: 10.13182/fst07-a1281] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- A. Dinklage
- Max-Planck-Institut für Plasmaphysik, EURATOM-Association, Greifswald, Germany
| | - E. Ascasíbar
- Laboratorio Nacional de Fusión, EURATOM-CIEMAT, 28040 Madrid, Spain
| | - C. D. Beidler
- Max-Planck-Institut für Plasmaphysik, EURATOM-Association, Greifswald, Germany
| | - R. Brakel
- Max-Planck-Institut für Plasmaphysik, EURATOM-Association, Greifswald, Germany
| | - J. Geiger
- Max-Planck-Institut für Plasmaphysik, EURATOM-Association, Greifswald, Germany
| | - J. H. Harris
- Oak Ridge National Laboratory, Fusion Energy Division, Oak Ridge, Tennessee 37830
| | - A. Kus
- Max-Planck-Institut für Plasmaphysik, EURATOM-Association, Greifswald, Germany
| | | | - S. Okamura
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - R. Preuss
- Max-Planck-Institut für Plasmaphysik, EURATOM-Association, Greifswald, Germany
| | - F. Sano
- Kyoto University, Kyoto, Japan
| | - U. Stroth
- Universität Stuttgart, Institut für Plasmaforschung, Germany
| | - Y. Suzuki
- Max-Planck-Institut für Plasmaphysik, EURATOM-Association, Greifswald, Germany
| | - J. Talmadge
- University of Wisconsin, HSX Plasma Laboratory, 1415 Engineering Drive, Madison, Wisconsin 53706
| | - V. Tribaldos
- Laboratorio Nacional de Fusión, EURATOM-CIEMAT, 28040 Madrid, Spain
| | - K. Y. Watanabe
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - A. Weller
- Max-Planck-Institut für Plasmaphysik, EURATOM-Association, Greifswald, Germany
| | - H. Yamada
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - M. Yokoyama
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
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7
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Krychowiak M, Adnan A, Alonso A, Andreeva T, Baldzuhn J, Barbui T, Beurskens M, Biel W, Biedermann C, Blackwell BD, Bosch HS, Bozhenkov S, Brakel R, Bräuer T, Brotas de Carvalho B, Burhenn R, Buttenschön B, Cappa A, Cseh G, Czarnecka A, Dinklage A, Drews P, Dzikowicka A, Effenberg F, Endler M, Erckmann V, Estrada T, Ford O, Fornal T, Frerichs H, Fuchert G, Geiger J, Grulke O, Harris JH, Hartfuß HJ, Hartmann D, Hathiramani D, Hirsch M, Höfel U, Jabłoński S, Jakubowski MW, Kaczmarczyk J, Klinger T, Klose S, Knauer J, Kocsis G, König R, Kornejew P, Krämer-Flecken A, Krawczyk N, Kremeyer T, Książek I, Kubkowska M, Langenberg A, Laqua HP, Laux M, Lazerson S, Liang Y, Liu SC, Lorenz A, Marchuk AO, Marsen S, Moncada V, Naujoks D, Neilson H, Neubauer O, Neuner U, Niemann H, Oosterbeek JW, Otte M, Pablant N, Pasch E, Sunn Pedersen T, Pisano F, Rahbarnia K, Ryć L, Schmitz O, Schmuck S, Schneider W, Schröder T, Schuhmacher H, Schweer B, Standley B, Stange T, Stephey L, Svensson J, Szabolics T, Szepesi T, Thomsen H, Travere JM, Trimino Mora H, Tsuchiya H, Weir GM, Wenzel U, Werner A, Wiegel B, Windisch T, Wolf R, Wurden GA, Zhang D, Zimbal A, Zoletnik S. Overview of diagnostic performance and results for the first operation phase in Wendelstein 7-X (invited). Rev Sci Instrum 2016; 87:11D304. [PMID: 27910389 DOI: 10.1063/1.4964376] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Wendelstein 7-X, a superconducting optimized stellarator built in Greifswald/Germany, started its first plasmas with the last closed flux surface (LCFS) defined by 5 uncooled graphite limiters in December 2015. At the end of the 10 weeks long experimental campaign (OP1.1) more than 20 independent diagnostic systems were in operation, allowing detailed studies of many interesting plasma phenomena. For example, fast neutral gas manometers supported by video cameras (including one fast-frame camera with frame rates of tens of kHz) as well as visible cameras with different interference filters, with field of views covering all ten half-modules of the stellarator, discovered a MARFE-like radiation zone on the inboard side of machine module 4. This structure is presumably triggered by an inadvertent plasma-wall interaction in module 4 resulting in a high impurity influx that terminates some discharges by radiation cooling. The main plasma parameters achieved in OP1.1 exceeded predicted values in discharges of a length reaching 6 s. Although OP1.1 is characterized by short pulses, many of the diagnostics are already designed for quasi-steady state operation of 30 min discharges heated at 10 MW of ECRH. An overview of diagnostic performance for OP1.1 is given, including some highlights from the physics campaigns.
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Affiliation(s)
- M Krychowiak
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A Adnan
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A Alonso
- Laboratorio Nacional de Fusión, CIEMAT, Avenida Complutense, Madrid, Spain
| | - T Andreeva
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - J Baldzuhn
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Barbui
- University of Wisconsin, Engineering Drive, Madison, Wisconsin 53706, USA
| | - M Beurskens
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - W Biel
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
| | - C Biedermann
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - B D Blackwell
- Australian National University, Acton ACT, 2601 Canberra, Australia
| | - H S Bosch
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - S Bozhenkov
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - R Brakel
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Bräuer
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - B Brotas de Carvalho
- Instituto de Plasmas e Fusao Nuclear, Avenue Rovisco Pais 1, 1049-001 Lisboa, Portugal
| | - R Burhenn
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - B Buttenschön
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A Cappa
- Laboratorio Nacional de Fusión, CIEMAT, Avenida Complutense, Madrid, Spain
| | - G Cseh
- Wigner Research Centre for Physics, Konkoly Thege 29-33, H-1121 Budapest, Hungary
| | - A Czarnecka
- Institute of Plasma Physics and Laser Microfusion, Hery Street 23, 01-497 Warsaw, Poland
| | - A Dinklage
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - P Drews
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
| | - A Dzikowicka
- University of Szczecin, al. Papieża Jana Pawła II 22A, Szczecin, Poland
| | - F Effenberg
- University of Wisconsin, Engineering Drive, Madison, Wisconsin 53706, USA
| | - M Endler
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - V Erckmann
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Estrada
- Laboratorio Nacional de Fusión, CIEMAT, Avenida Complutense, Madrid, Spain
| | - O Ford
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Fornal
- Institute of Plasma Physics and Laser Microfusion, Hery Street 23, 01-497 Warsaw, Poland
| | - H Frerichs
- University of Wisconsin, Engineering Drive, Madison, Wisconsin 53706, USA
| | - G Fuchert
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - J Geiger
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - O Grulke
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - J H Harris
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - H J Hartfuß
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - D Hartmann
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - D Hathiramani
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - M Hirsch
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - U Höfel
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - S Jabłoński
- Institute of Plasma Physics and Laser Microfusion, Hery Street 23, 01-497 Warsaw, Poland
| | - M W Jakubowski
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - J Kaczmarczyk
- Institute of Plasma Physics and Laser Microfusion, Hery Street 23, 01-497 Warsaw, Poland
| | - T Klinger
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - S Klose
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - J Knauer
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - G Kocsis
- Wigner Research Centre for Physics, Konkoly Thege 29-33, H-1121 Budapest, Hungary
| | - R König
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - P Kornejew
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A Krämer-Flecken
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
| | - N Krawczyk
- Institute of Plasma Physics and Laser Microfusion, Hery Street 23, 01-497 Warsaw, Poland
| | - T Kremeyer
- University of Wisconsin, Engineering Drive, Madison, Wisconsin 53706, USA
| | - I Książek
- Opole University, pl. Kopernika 11a, 45-040 Opole, Poland
| | - M Kubkowska
- Institute of Plasma Physics and Laser Microfusion, Hery Street 23, 01-497 Warsaw, Poland
| | - A Langenberg
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - H P Laqua
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - M Laux
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - S Lazerson
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA
| | - Y Liang
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
| | - S C Liu
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
| | - A Lorenz
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A O Marchuk
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
| | - S Marsen
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - V Moncada
- CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France
| | - D Naujoks
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - H Neilson
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA
| | - O Neubauer
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
| | - U Neuner
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - H Niemann
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - J W Oosterbeek
- Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - M Otte
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - N Pablant
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA
| | - E Pasch
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Sunn Pedersen
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - F Pisano
- University of Cagliari, Via Università, 40, 09124 Cagliari, Italy
| | - K Rahbarnia
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - L Ryć
- Institute of Plasma Physics and Laser Microfusion, Hery Street 23, 01-497 Warsaw, Poland
| | - O Schmitz
- University of Wisconsin, Engineering Drive, Madison, Wisconsin 53706, USA
| | - S Schmuck
- Culham Science Centre, Abingdon OX14 3DB, United Kingdom
| | - W Schneider
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Schröder
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - H Schuhmacher
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - B Schweer
- Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany
| | - B Standley
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Stange
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - L Stephey
- University of Wisconsin, Engineering Drive, Madison, Wisconsin 53706, USA
| | - J Svensson
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - T Szabolics
- Wigner Research Centre for Physics, Konkoly Thege 29-33, H-1121 Budapest, Hungary
| | - T Szepesi
- Wigner Research Centre for Physics, Konkoly Thege 29-33, H-1121 Budapest, Hungary
| | - H Thomsen
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - J-M Travere
- CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France
| | - H Trimino Mora
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - H Tsuchiya
- NIFS National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
| | - G M Weir
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - U Wenzel
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A Werner
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - B Wiegel
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - T Windisch
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - R Wolf
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - G A Wurden
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D Zhang
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A Zimbal
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - S Zoletnik
- Wigner Research Centre for Physics, Konkoly Thege 29-33, H-1121 Budapest, Hungary
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Bosch HS, Bykov V, Brakel R, van Eeten P, Feist JH, Gasparotto M, Grote H, Klinger T, Nagel M, Naujoks D, Neilson G, Rummel T, Schacht J, Vilbrandt R, Wegener L, Werner A. Experience with the commissioning of the superconducting stellarator Wendelstein 7-X. Fusion Engineering and Design 2015. [DOI: 10.1016/j.fusengdes.2015.05.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Brakel R, Eeten P, Hartmann D, Henkelmann K, Knauer J, Müller K, Okkenga-Wolf A, Wenzel U. Configuration Management for Wendelstein 7-X. Fusion Engineering and Design 2009. [DOI: 10.1016/j.fusengdes.2008.11.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Grigull P, McCormick K, Renner H, Masuzaki S, König R, Baldzuhn J, Bäumel S, Burhenn R, Brakel R, Ehmler H, Feng Y, Gadelmeier F, Giannone L, Hartmann D, Hildebrandt D, Hirsch M, Jaenicke R, Kisslinger J, Klinger T, Knauer J, Naujoks D, Niedermeyer H, Pasch E, Ramasubramanian N, Sardei F, Wagner F, Wenzel U, Werner A. Divertor operation in stellarators: results from W7-AS and implications for future devices. Fusion Engineering and Design 2003. [DOI: 10.1016/s0920-3796(03)00121-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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McCormick K, Grigull P, Burhenn R, Brakel R, Ehmler H, Feng Y, Gadelmeier F, Giannone L, Hildebrandt D, Hirsch M, Jaenicke R, Kisslinger J, Klinger T, Klose S, Knauer JP, König R, Kühner G, Laqua HP, Naujoks D, Niedermeyer H, Pasch E, Ramasubramanian N, Rust N, Sardei F, Wagner F, Weller A, Wenzel U, Werner A. New advanced operational regime on the W7-AS stellarator. Phys Rev Lett 2002; 89:015001. [PMID: 12097046 DOI: 10.1103/physrevlett.89.015001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2002] [Indexed: 05/23/2023]
Abstract
A promising new plasma operational regime on the Wendelstein stellarator W7-AS has been discovered. It is extant above a threshold density and characterized by flat density profiles, high energy and low impurity confinement times, and edge-localized radiation. Impurity accumulation is avoided. Quasistationary discharges with line-averaged densities n(e) to 4 x 10(20) m(-3), radiation levels to 90%, and partial plasma detachment at the divertor target plates can be simultaneously realized. Energy confinement is up to twice that of a standard scaling. At B(t) = 0.9 T, an average beta value of 3.1% is achieved. The high n(e) values allow demonstration of electron Bernstein wave heating using linear mode conversion.
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Affiliation(s)
- K McCormick
- Max-Planck-Institut für Plasmaphysik, EURATOM Association, D-85748 Garching, Germany.
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Weller A, Baldzuhn J, Brakel R, Burhenn R, Erckmann V, Feng Y, Fiedler S, Geiger J, Giannone L, Grigull P, Hartfuss H, Hirsch M, Hofmann J, Kick M, Konrad C, Maassberg H, Rust N, Sardei F, Suvorov E. Plasma diagnostics and physics in the W7-AS stellarator. Fusion Engineering and Design 1997. [DOI: 10.1016/s0920-3796(96)00669-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Erckmann V, Wagner F, Baldzuhn J, Brakel R, Burhenn R, Gasparino U, Grigull P, Hartfuss HJ, Hofmann JV, Jaenicke R, Niedermeyer H, Ohlendorf W, Rudyj A, Weller A, Bogdanov SD, Bomba B, Borschegovsky AA, Cattanei G, Dodhy A, Dorst D, Elsner A, Endler M, Geist T, Giannone L, Hacker H, Heinrich O, Herre G, Hildebrandt D, Hiznyak VI, Il'in VI, Kasparek W, Karger F, Kick M, Kubo S, Kuftin AN, Kurbatov VI, Lazaros A, Malygin SA, Malygin VI, McCormick K, Müller GA, Orlov VB, Pech P, Roi IN, Sardei F, Sattler S, Schneider F, Schneider U, Schüller PG, Siller G, Stroth U, Tutter M, Unger E, Wolff H, Würsching E, Zöpfel S. H mode of the W 7-AS stellarator. Phys Rev Lett 1993; 70:2086-2089. [PMID: 10053467 DOI: 10.1103/physrevlett.70.2086] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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