H
Heinrich P. Laqua
Researcher at Max Planck Society
Publications - 55
Citations - 1408
Heinrich P. Laqua is an academic researcher from Max Planck Society. The author has contributed to research in topics: Stellarator & Gyrotron. The author has an hindex of 16, co-authored 55 publications receiving 1231 citations.
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Journal ArticleDOI
Resonant and Nonresonant Electron Cyclotron Heating at Densities above the Plasma Cutoff by O-X-B Mode Conversion at the W7-As Stellarator
TL;DR: In this paper, mode conversion from an O-wave to an X-wave and finally to an electron Bernstein (O-X-B) wave was investigated and successfully demonstrated at the W7-AS stellarator.
Journal ArticleDOI
Electron Bernstein wave heating and diagnostic
TL;DR: In this article, a review on the experiments with electron Bernstein waves (EBWs) in fusion devices is given, where different methods of EBW generation are described and compared with experimental results.
Journal ArticleDOI
Overview of first Wendelstein 7-X high-performance operation
Thomas Klinger,Thomas Klinger,Tamara Andreeva,S. Bozhenkov,Christian Brandt,R. Burhenn,B. Buttenschön,G. Fuchert,Benedikt Geiger,Olaf Grulke,Olaf Grulke,H. P. Laqua,N. A. Pablant,Kian Rahbarnia,Torsten Stange,A. von Stechow,Naoki Tamura,H. Thomsen,Yu. Turkin,T. Wegner,I. Abramovic,Simppa Äkäslompolo,J. A. Alcuson,P. Aleynikov,K. Aleynikova,Adnan Ali,A. Alonso,G. Anda,E. Ascasíbar,J.P. Bähner,Seung Gyou Baek,M. Balden,J. Baldzuhn,M. Banduch,T. Barbui,Wilfried Behr,C. D. Beidler,A. Benndorf,Christoph Biedermann,Wolfgang Biel,Boyd Blackwell,E. Blanco,M. Blatzheim,S. B. Ballinger,Torsten Bluhm,D. Böckenhoff,B. Böswirth,L.-G. Böttger,L.-G. Böttger,M. Borchardt,V. Borsuk,J. Boscary,Hans-Stephan Bosch,M. N. A. Beurskens,R. Brakel,H. Brand,T. Bräuer,H. Braune,S. Brezinsek,Kai Jakob Brunner,R. Bussiahn,V. Bykov,J. Cai,Ivan Calvo,Barbara Cannas,A. Cappa,A. Carls,D. Carralero,L. Carraro,Bernardo B. Carvalho,Francisco Castejón,A. Charl,N. Chaudhary,Didier Chauvin,F. V. Chernyshev,Mark Cianciosa,Roberto Guglielmo Citarella,G. Claps,J. W. Coenen,Michael Cole,M.J. Cole,Francesco Cordella,Gábor Cseh,A. Czarnecka,K. Czerski,M. Czerwinski,G. Czymek,A. da Molin,A. da Silva,H. Damm,A. de la Peña,S. Degenkolbe,Chandra Prakash Dhard,M. Dibon,Andreas Dinklage,T. Dittmar,Michael Drevlak,P. Drewelow,P. Drews,F. Durodié,E.M. Edlund,P. van Eeten,Florian Effenberg,G. Ehrke,S. Elgeti,M. Endler,David Ennis,H. Esteban,T. Estrada,Joris Fellinger,Y. Feng,E. Flom,Horacio Fernandes,Walter H. Fietz,W. Figacz,J M Fontdecaba,O. P. Ford,T. Fornal,H. Frerichs,Alexandra M. Freund,T. Funaba,A. Galkowski,Gerd Gantenbein,Yu Gao,J. M. García Regaña,David Gates,J. Geiger,Venanzio Giannella,A. Gogoleva,B. Gonçalves,A. Goriaev,Dorothea Gradic,M. Grahl,Jonathan T. Green,H. Greuner,A. Grosman,Heinz Grote,M. Gruca,C. Guerard,P. Hacker,X. Han,J. H. Harris,D. A. Hartmann,Dag Hathiramani,B. Hein,Bernd Heinemann,Per Helander,Per Helander,S. A. Henneberg,Malte Henkel,J.M. Hernández Sánchez,C. Hidalgo,M. Hirsch,K. P. Hollfeld,U. Höfel,A. Hölting,D. Höschen,M. Houry,J. Howard,X. Huang,Z. Huang,M. Hubeny,Martina Huber,H. Hunger,Katsumi Ida,T. Ilkei,Stefan Illy,B. Israeli,S. Jablonski,M. W. Jakubowski,John Jelonnek,H. Jenzsch,T. Jesche,M. Jia,P. Junghanns,J. Kacmarczyk,J. P. Kallmeyer,U. Kamionka,Hiroshi Kasahara,W. Kasparek,Ye. O. Kazakov,Naoki Kenmochi,Carsten Killer,A. Kirschner,R. Kleiber,J. P. Knauer,M. Knaup,A. Knieps,T. Kobarg,G. Kocsis,F. Köchl,Ya. I. Kolesnichenko,Axel Könies,R. König,P. Kornejew,J. P. Koschinsky,F. Köster,Michael Kramer,R. Krampitz,A. Krämer-Flecken,N. Krawczyk,T. Kremeyer,J. Krom,M. Krychowiak,I. Ksiazek,Monika Kubkowska,Georg Kühner,Taina Kurki-Suonio,P.A. Kurz,Sehyun Kwak,Matt Landreman,Peter Lang,R. Lang,Andreas Langenberg,S. Langish,Heinrich P. Laqua,R. Laube,Samuel Lazerson,Carsten Lechte,M. Lennartz,W. Leonhardt,C. Li,Y. Li,Yunfeng Liang,Ch. Linsmeier,S. C. Liu,Jim-Felix Lobsien,D. Loesser,J. Loizu Cisquella,Jeremy Lore,A. Lorenz,M. Losert,A. Lücke,Arnold Lumsdaine,V. V. Lutsenko,H. Maaßberg,O. Marchuk,J.H. Matthew,S. Marsen,M. Marushchenko,Suguru Masuzaki,David Maurer,M. Mayer,K. J. McCarthy,P. McNeely,Andreas Meier,D. Mellein,B. Mendelevitch,Ph. Mertens,D. R. Mikkelsen,Alexey Mishchenko,B. Missal,J. Mittelstaedt,T. Mizuuchi,Albert Mollén,V. Moncada,T. Mönnich,Tomohiro Morisaki,Dmitry Moseev,S. Murakami,Gábor Náfrádi,M. Nagel,Dirk Naujoks,H. Neilson,R. Neu,Olaf Neubauer,Ulrich Neuner,T. Ngo,Dirk Nicolai,Stefan Kragh Nielsen,Holger Niemann,T. Nishizawa,Riccardo Nocentini,C. Nührenberg,J. Nührenberg,S. Obermayer,G. Offermanns,Kunihiro Ogawa,J. Ölmanns,J. Ongena,J. W. Oosterbeek,G. Orozco,Matthias Otte,L. Pacios Rodriguez,N. Panadero,N. Panadero Alvarez,Daniel Papenfuß,S. Paqay,E. Pasch,Andrea Pavone,Ewa Pawelec,Thomas Sunn Pedersen,Thomas Sunn Pedersen,G. Pelka,V. Perseo,B.J. Peterson,D. Pilopp,S. Pingel,Fabio Pisano,Burkhard Plaum,Gabriel G. Plunk,P. Pölöskei,Miklos Porkolab,J. H. E. Proll,M. E. Puiatti,A. Puig Sitjes,F. Purps,M. Rack,S. Récsei,A. H. Reiman,F. Reimold,Detlev Reiter,F. Remppel,S. Renard,R. Riedl,J. Riemann,K. Risse,V. Rohde,H. Röhlinger,Massimiliano Romé,D. Rondeshagen,P. Rong,B. Roth,L. Rudischhauser,K. Rummel,Th. Rummel,A. Runov,N. Rust,L. Ryć,S. Ryosuke,R. Sakamoto,Mirko Salewski,Andrey Samartsev,E. Sánchez,Fumimichi Sano,Shinsuke Satake,Jörg Schacht,G. Satheeswaran,Felix Schauer,T.A. Scherer,Jonathan Schilling,Andreas Schlaich,G. Schlisio,F. Schluck,K. H. Schlüter,J.C. Schmitt,H. Schmitz,Oliver Schmitz,S. Schmuck,Matthias F. Schneider,Wolf-Dieter Schneider,P. Scholz,R. Schrittwieser,M. Schröder,T. Schröder,R. Schroeder,H. Schumacher,B. Schweer,E. R. Scott,S. Sereda,B. Shanahan,M. Sibilia,P. Sinha,S. Sipliä,C. Slaby,M. Sleczka,H. M. Smith,W. Spiess,Donald A. Spong,Anett Spring,R. Stadler,Morten Stejner,Laurie Stephey,U. Stridde,C. Suzuki,J. Svensson,V. Szabó,T. Szabolics,Tamás Szepesi,Z. Szökefalvi-Nagy,A. Tancetti,J.L. Terry,J. P. Thomas,Manfred Thumm,J.-M. Travere,Peter Traverso,J. Tretter,H. Trimino Mora,Hayato Tsuchiya,Toru Ii Tsujimura,S. Tulipán,B. Unterberg,I. Vakulchyk,S. Valet,L. Vano,B. van Milligen,A. van Vuuren,Luis Vela Vela,José Luis Velasco,M. Vergote,M. Vervier,N. Vianello,H. Viebke,R. Vilbrandt,A. Vorköper,S. Wadle,F. Wagner,E. Wang,Nengchao Wang,Zhirui Wang,Felix Warmer,T. Wauters,L. Wegener,Jörg Weggen,Y. Wei,G. M. Weir,J. Wendorf,U. Wenzel,A. Werner,Anne White,B. Wiegel,Fabian Wilde,T. Windisch,M. Winkler,A. Winter,Victoria Winters,S. Wolf,R. C. Wolf,R. C. Wolf,A.H. Wright,G. A. Wurden,P. Xanthopoulos,Hiroshi Yamada,I. Yamada,Ryo Yasuhara,M. Yokoyama,M. Zanini,M. C. Zarnstorff,A. Zeitler,D. Zhang,H. Zhang,Jiawu Zhu,Manfred Zilker,Alessandro Zocco,S. Zoletnik,Matteo Zuin +445 more
TL;DR: The Wendelstein 7-X superconducting stellarator was used for the first high-performance plasma operation as discussed by the authors, achieving densities of up to 4.5 GHz with helium gas fueling.
Journal ArticleDOI
Major results from the first plasma campaign of the Wendelstein 7-X stellarator
R. C. Wolf,Adnan Ali,A. Alonso,J. Baldzuhn,C. D. Beidler,M. N. A. Beurskens,Christoph Biedermann,Hans-Stephan Bosch,S. A. Bozhenkov,R. Brakel,Andreas Dinklage,Y. Feng,G. Fuchert,J. Geiger,Olaf Grulke,Per Helander,M. Hirsch,U. Höfel,M. W. Jakubowski,J. P. Knauer,G. Kocsis,R. König,P. Kornejew,A. Krämer-Flecken,M. Krychowiak,Matt Landreman,Andreas Langenberg,Heinrich P. Laqua,Samuel Lazerson,H. Maaßberg,S. Marsen,M. Marushchenko,Dmitry Moseev,Holger Niemann,N. A. Pablant,E. Pasch,Kian Rahbarnia,G. Schlisio,Torsten Stange,T. Sunn Pedersen,J. Svensson,Tamás Szepesi,H. Trimino Mora,Yu. Turkin,Tom Wauters,G. M. Weir,U. Wenzel,T. Windisch,G. A. Wurden,D. Zhang,I. Abramovic,Simppa Äkäslompolo,P. Aleynikov,K. Aleynikova,Robertas Alzbutas,G. Anda,Tamara Andreeva,E. Ascasíbar,J. Assmann,Seung Gyou Baek,M. Banduch,T. Barbui,Marek Barlak,K. Baumann,Wilfried Behr,A. Benndorf,O. Bertuch,Wolfgang Biel,D. Birus,Boyd Blackwell,E. Blanco,M. Blatzheim,Torsten Bluhm,D. Böckenhoff,P. Bolgert,M. Borchardt,V. Borsuk,J. Boscary,L.-G. Böttger,H. Brand,Ch. Brandt,T. Bräuer,H. Braune,S. Brezinsek,Kai Jakob Brunner,B. Brünner,R. Burhenn,B. Buttenschön,V. Bykov,Ivan Calvo,Barbara Cannas,A. Cappa,A. Carls,L. Carraro,Bernardo B. Carvalho,Francisco Castejón,A. Charl,F. V. Chernyshev,Mark Cianciosa,Roberto Guglielmo Citarella,Łukasz Ciupiński,G. Claps,Michael Cole,M.J. Cole,Francesco Cordella,Gábor Cseh,A. Czarnecka,A. Czermak,K. Czerski,M. Czerwinski,G. Czymek,A. da Molin,A. da Silva,Günter Dammertz,J. R. Danielson,A. de la Peña,S. Degenkolbe,P. Denner,D.P. Dhard,M. Dostal,Michael Drevlak,P. Drewelow,Ph. Drews,A. Dudek,Gintautas Dundulis,F. Durodié,P. van Eeten,Florian Effenberg,G. Ehrke,M. Endler,David Ennis,E. Erckmann,H. Esteban,T. Estrada,N. Fahrenkamp,J.-H. Feist,Joris Fellinger,Horacio Fernandes,Walter H. Fietz,W. Figacz,J M Fontdecaba,O. P. Ford,T. Fornal,H. Frerichs,Alexandra M. Freund,M. Führer,T. Funaba,A. Galkowski,Gerd Gantenbein,Yu Gao,J. M. García Regaña,M. Garcia-Munoz,David Gates,Grzegorz Gawlik,Benedikt Geiger,Venanzio Giannella,N. Gierse,A. Gogoleva,B. Gonçalves,A. Goriaev,D. Gradic,M. Grahl,Jonathan T. Green,A. Grosman,Heinz Grote,M. Gruca,C. Guerard,L. Haiduk,X. Han,F. Harberts,J. H. Harris,H.-J. Hartfuß,D. A. Hartmann,Dag Hathiramani,B. Hein,Bernd Heinemann,P.J. Heitzenroeder,S. A. Henneberg,Christine Hennig,J.M. Hernández Sánchez,C. Hidalgo,H. Hölbe,K. P. Hollfeld,A. Hölting,D. Höschen,M. Houry,John Howard,X. Huang,Martina Huber,V. Huber,H. Hunger,Katsumi Ida,T. Ilkei,Stefan Illy,B. Israeli,A. A. Ivanov,S. Jablonski,Jacek Jagielski,John Jelonnek,H. Jenzsch,P. Junghans,J. Kacmarczyk,Tadas Kaliatka,J. P. Kallmeyer,U. Kamionka,R. Karalevicius,Hiroshi Kasahara,W. Kasparek,Naoki Kenmochi,M. Keunecke,A. Khilchenko,D. Kinna,R. Kleiber,Thomas Klinger,M. Knaup,Th. Kobarg,F. Köchl,Ya. I. Kolesnichenko,Axel Könies,Martin Köppen,J. Koshurinov,R. Koslowski,F. Köster,R. Koziol,Michael Kramer,R. Krampitz,P. Kraszewsk,N. Krawczyk,T. Kremeyer,T. Krings,J. Krom,G. Krzesiński,I. Ksiazek,Monika Kubkowska,Georg Kühner,Taina Kurki-Suonio,Sehyun Kwak,R. Lang,S. Langish,H. P. Laqua,R. Laube,Carsten Lechte,M. Lennartz,W. Leonhardt,L. Lewerentz,Yunfeng Liang,Ch. Linsmeier,S. C. Liu,Jim-Felix Lobsien,D. Loesser,J. Loizu Cisquella,Jeremy Lore,A. Lorenz,M. Losert,L. V. Lubyako,A. Lücke,Arnold Lumsdaine,V. V. Lutsenko,J. Majano-Brown,O. Marchuk,M. Mardenfeld,P. Marek,S. Massidda,Suguru Masuzaki,David Maurer,K. J. McCarthy,P. McNeely,Andreas Meier,D. Mellein,B. Mendelevitch,Ph. Mertens,D. R. Mikkelsen,O. Mishchenko,B. Missal,J. Mittelstaedt,T. Mizuuchi,Albert Mollén,V. Moncada,T. Mönnich,T. Morizaki,R. Munk,Sadayoshi Murakami,F. Musielok,Gábor Náfrádi,M. Nagel,Dirk Naujoks,H. Neilson,Olaf Neubauer,Ulrich Neuner,T. Ngo,Riccardo Nocentini,C. Nührenberg,J. Nührenberg,S. Obermayer,G. Offermanns,Kunihiro Ogawa,J. Ongena,J. W. Oosterbeek,G. Orozco,Matthias Otte,L. Pacios Rodriguez,W. Pan,N. Panadero,N. Panadero Alvarez,Anatoly Panin,Daniel Papenfuß,S. Paqay,Andrea Pavone,Ewa Pawelec,G. Pelka,X. Peng,V. Perseo,B.J. Peterson,A. Pieper,D. Pilopp,S. Pingel,Fabio Pisano,Burkhard Plaum,Gabriel G. Plunk,Mantas Povilaitis,Josef Preinhaelter,J. H. E. Proll,M. E. Puiatti,A. Puig Sitjes,F. Purps,M. Rack,S. Récsei,A. H. Reiman,Detlev Reiter,F. Remppel,S. Renard,R. Riedl,J. Riemann,Sigitas Rimkevicius,K. Riße,A. Rodatos,H. Röhlinger,Massimiliano Romé,P. Rong,H.-J. Roscher,B. Roth,L. Rudischhauser,K. Rummel,Th. Rummel,A. Runov,N. Rust,L. Ryć,S. Ryosuke,R. Sakamoto,Andrey Samartsev,María Sánchez,Fumimichi Sano,Shinsuke Satake,G. Satheeswaran,Jörg Schacht,Felix Schauer,T.A. Scherer,Andreas Schlaich,K. H. Schlüter,J.C. Schmitt,H. Schmitz,Oliver Schmitz,S. Schmuck,Matthias F. Schneider,Wolf-Dieter Schneider,Marek Scholz,P. Scholz,R. Schrittwieser,M. Schröder,T. Schröder,R. Schroeder,H. Schumacher,B. Schweer,B. Shanahan,I.V. Shikhovtsev,M. Sibilia,P. Sinha,S. Sipliä,Jan Skodzik,C. Slaby,H. M. Smith,W. Spiess,Donald A. Spong,Anett Spring,R. Stadler,B. Standley,Laurie Stephey,M. R. Stoneking,U. Stridde,Z. Sulek,Clifford M Surko,Yasuhiro Suzuki,V. Szabó,T. Szabolics,Z. Szökefalvi-Nagy,Naoki Tamura,Alexis Terra,J.L. Terry,J. Thomas,H. Thomsen,Manfred Thumm,C.P. von Thun,Dirk Timmermann,Peter Titus,K. Toi,J.-M. Travere,Peter Traverso,J. Tretter,Hayato Tsuchiya,Toru Ii Tsujimura,S. Tulipán,M. Turnyanskiy,B. Unterberg,Jakub Urban,Egidijus Urbonavicius,I. Vakulchyk,S. Valet,B. van Millingen,Luis Vela Vela,José Luis Velasco,M. Vergote,M. Vervier,N. Vianello,H. Viebke,R. Vilbrandt,A. Vorkörper,S. Wadle,F. Wagner,E. Wang,Nengchao Wang,Felix Warmer,L. Wegener,Jörg Weggen,Y. Wei,J. Wendorf,A. Werner,B. Wiegel,Fabian Wilde,E. Winkler,Victoria Winters,S. Wolf,J. Wolowski,A.H. Wright,P. Xanthopoulos,Hiroshi Yamada,I. Yamada,Ryo Yasuhara,M. Yokoyama,J. Zajac,M. C. Zarnstorff,A. Zeitler,Han Zhang,Jiawu Zhu,M. Zilker,Andreas Zimbal,Alessandro Zocco,S. Zoletnik,Matteo Zuin +457 more
TL;DR: The Wendelstein 7-X (W7-X) as mentioned in this paper is a state-of-the-art ECRH-based system for plasma start-up and operation using electron cyclotron resonance heating (ECRH).
Journal ArticleDOI
First island divertor experiments on the W7-AS stellarator
P. Grigull,K. McCormick,J. Baldzuhn,R. Burhenn,R. Brakel,H. Ehmler,Y. Feng,F. Gadelmeier,L. Giannone,D. Hartmann,D. Hildebrandt,M. Hirsch,R. Jaenicke,J. Kisslinger,J. P. Knauer,Ralf König,Georg Kühner,Heinrich P. Laqua,Dirk Naujoks,H. Niedermeyer,N. Ramasubramanian,N. Rust,F. Sardei,F. Wagner,A. Weller,U. Wenzel +25 more
TL;DR: In this paper, the authors evaluate the performance of the island divertor concept in a NBI-heated, very high density (up to e = 3.5 × 1020 m-3) operating regime with promising confinement properties.