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Christian Gabriel Theiler

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Related publications (153)

Divertor power load studies for attached L-mode single-null plasmas in TCV

Holger Reimerdes, Benoît Labit, Christian Gabriel Theiler, Wouter Vijvers, Cedric Kar-Wai Tsui, Roberto Maurizio

This paper investigates the power loads at the inner and outer divertor targets of attached, Ohmic L-mode, deuterium plasmas in the TCV tokamak, in various experimental situations using an Infrared thermography system. The study comprises variations of the ...

IOP Publishing Ltd2018

Impact of the plasma geometry on divertor power exhaust: experimental evidence from TCV and simulations with SolEdge2D and TOKAM3X

Holger Reimerdes, Christian Gabriel Theiler, Cedric Kar-Wai Tsui, Roberto Maurizio, Davide Galassi

A deep understanding of plasma transport at the edge of magnetically confined fusion plasmas is needed for the handling and control of heat loads on the machine first wall. Experimental observations collected on a number of tokamaks over the last three dec ...

2018

Experimental observations of modes with geodesic acoustic character from the core to the edge in the TCV tokamak

Stephan Brunner, Laurent Villard, Stefano Coda, Benoît Labit, Christian Gabriel Theiler, Zhouji Huang, Gabriele Merlo

2018

Analysis of wall-embedded Langmuir probe signals in different conditions on the Tokamak à Configuration Variable

Benoît Labit, Christian Gabriel Theiler, Hugo De Oliveira, Antoine Baillod

2018

Impurity seeding for suppression of the near scrape-off layer heat flux feature in tokamak limited plasmas

Ivo Furno, Benoît Labit, Christian Gabriel Theiler, Federico Nespoli, Cedric Kar-Wai Tsui, Umar Sheikh

American Institute of Physics (AIP)2018

Filamentary velocity scaling validation in the TCV tokamak

Basil Duval, Holger Reimerdes, Stefano Coda, Jan Horacek, Benoît Labit, Christian Gabriel Theiler, Wouter Vijvers, Federico Nespoli, Cedric Kar-Wai Tsui, Umar Sheikh, Kevin Henricus Annemarie Verhaegh, Nicola Vianello, Roberto Maurizio

American Institute of Physics (AIP)2018

Development of helium electron cyclotron wall conditioning on TCV

Patrick Blanchard, Timothy Goodman, Stefano Coda, Christian Gabriel Theiler, Kevin Henricus Annemarie Verhaegh

IOP Publishing Ltd2018

SOL transport and detachment in alternative divertor configurations in TCV L-and H-mode plasmas

Basil Duval, Holger Reimerdes, Benoît Labit, Christian Gabriel Theiler, Hugo De Oliveira, Wouter Vijvers, Curdin Tobias Wüthrich, Cedric Kar-Wai Tsui, Umar Sheikh, Kevin Henricus Annemarie Verhaegh, Nicola Vianello, Roberto Maurizio, Mirko Wensing, Davide Galassi, Artur Perek

2018

Dynamics of detachment in TCV with N2 seeding and flux expansion

Basil Duval, Holger Reimerdes, Benoît Labit, Christian Gabriel Theiler, Cedric Kar-Wai Tsui, Kevin Henricus Annemarie Verhaegh, Roberto Maurizio

2018

Sliding Surface Based Schemes for the Tokamak a Configuration Variable

Patrick Blanchard, Stefano Alberti, Basil Duval, Ambrogio Fasoli, Timothy Goodman, Xavier Llobet, Yves Martin, Jean-Marc Moret, Olivier Sauter, Minh Quang Tran, Henri Weisen, Ivo Furno, Holger Reimerdes, Jean-Philippe Hogge, Stefano Coda, Christian Schlatter, Marco Wischmeier, Jan Horacek, Alexander Karpushov, Laurie Porte, Yanis Andrebe, Yann Camenen, Jonathan Graves, Bernard Schneider, Duccio Testa, Benoît Labit, Rémy Jacquier, Paolo Ricci, Christian Gabriel Theiler, Federico Alberto Alfredo Felici, Miguel Filipe Silva Füglister, Fabio Riva, Wouter Vijvers, Josef Kamleitner, Hoang Bao Le, Zhouji Huang, Himank Anand, Falk Hans Braunmüller, Joyeeta Sinha, Claudio Marini, Antoine Pierre Emmanuel Alexis Merle, , , , , , , , , , , , , , , , , , ,

Dependence of the L-Mode scrape-off layer power fall-off length on the upper triangularity in TCV

Holger Reimerdes, Stefano Coda, Benoît Labit, Christian Gabriel Theiler, Antoine Pierre Emmanuel Alexis Merle, Roberto Maurizio, Bernhard Sieglin

This paper reports on experimental observations on TCV with a scan in upper triangularity

{\delta }_{\mathrm{up}}

, including negative triangularity, focusing on the power fall-off length

{\lambda }_{{\rm{q}}}

in L-Mode. The upper triangularity is scann ...

2018

The effect of the secondary x-point on the scrape-off layer transport in the TCV snowflake minus divertor

Basil Duval, Holger Reimerdes, Benoît Labit, Christian Gabriel Theiler, Cedric Kar-Wai Tsui, Umar Sheikh, Roberto Maurizio

The snowflake (SF) magnetic configuration is investigated as a potential power exhaust solution for a fusion reactor, but also to improve our understanding of divertor physics in general. Unlike a conventional single null (SN), it features an additional ne ...

IOP Publishing Ltd2018

The multi-spectral imaging diagnostic

Basil Duval, Yanis Andrebe, Christian Gabriel Theiler, Kevin Henricus Annemarie Verhaegh, Mirko Wensing

The Multi-Spectral Imaging system is a new diagnostic that captures simultaneous spectrally filtered images from a common line of sight while maintaining a large etendue and high throughput. Imaging several atomic line intensities simultaneously may enable ...

2018

Radial localization of edge modes in Alcator C-Mod pedestals using optical diagnostics

Christian Gabriel Theiler

Dedicated experiments in ion cyclotron range heated enhanced D-alpha (EDA) H-mode and I-mode plasmas have been performed on Alcator C-Mod to identify the location of edge fluctuations inside the pedestal and to determine their plasma frame phase velocity. ...

Institute of Physics2017

Exploring drift effects in TCV single-null plasmas with the UEDGE code

Holger Reimerdes, Benoît Labit, Christian Gabriel Theiler, Roberto Maurizio

This paper explores the effects of particle drifts across the magnetic field in TCV single-null plasmas using the two-dimensional edge plasma transport code UEDGE. In particular, it aims to reproduce a double-peaked density target profile, a feature which ...

Institute of Physics2017

Overview of progress in European medium sized tokamaks towards an integrated plasma-edge/wall solution

Patrick Blanchard, Roland Behn, Basil Duval, Timothy Goodman, Yves Martin, Jean-Marc Moret, Richard Pitts, Olivier Sauter, Holger Reimerdes, Stefano Coda, Marco Wischmeier, Jan Horacek, Alexander Karpushov, Laurie Porte, Yanis Andrebe, Yann Camenen, Thomas Binderup Jensen, Duccio Testa, Benoît Labit, Emiliano Fable, Javier García Hernández, Ben McMillan, Marc Gruber, Christian Gabriel Theiler, Federico Alberto Alfredo Felici, Dávid Wágner, Attila Bencze, Doohyun Kim, Wouter Vijvers, Hoang Bao Le, Zhouji Huang, Himank Anand, Claudio Marini, Antoine Pierre Emmanuel Alexis Merle, Federico Nespoli, Heinz Mueller, Anna Teplukhina, Joan Decker, Cedric Kar-Wai Tsui, Umar Sheikh, Cristian Galperti, , , , , , , , ,

Results from recent detachment experiments in alternative divertor configurations on TCV

Holger Reimerdes, Benoît Labit, Christian Gabriel Theiler, Wouter Vijvers, Federico Nespoli, Cedric Kar-Wai Tsui, Umar Sheikh, Kevin Henricus Annemarie Verhaegh, Nicola Vianello, Roberto Maurizio

Divertor detachment is explored on the TCV tokamak in alternative magnetic geometries. Starting from typical TCV single-null shapes, the poloidal flux expansion at the outer strikepoint is varied by a factor of 10 to investigate the X-divertor characterist ...

IOP Publishing Ltd2017

Effect of plasma geometry on divertor heat flux spreading: MONALISA simulations and experimental results from TCV

Holger Reimerdes, Benoît Labit, Christian Gabriel Theiler, Federico Nespoli, Roberto Maurizio

Safe ITER operations will rely on power spreading to keep the peak heat flux within divertor material constraints. A solid understanding and parameterization of heat flux profiles is therefore mandatory. This paper focuses on the impact of plasma geometry ...

Elsevier2017

TCV divertor upgrade for alternative magnetic configurations

Patrick Blanchard, Stefano Alberti, René Chavan, Basil Duval, Ambrogio Fasoli, Yves Martin, Jean-Marc Moret, Holger Reimerdes, Stefano Coda, Pierluigi Bruzzone, Marco Wischmeier, Duccio Testa, Benoît Labit, Christian Gabriel Theiler, Matthieu Toussaint, Davide Uglietti, Umar Sheikh, Nicola Vianello

The Swiss Plasma Center (SPC) is planning a divertor upgrade for the TCV tokamak. The upgrade aims at extending the research of conventional and alternative divertor configurations to operational scenarios and divertor regimes of greater relevance for a fu ...

Elsevier2017

Detachment evolution on the TCV tokamak

Basil Duval, Holger Reimerdes, Marco Wischmeier, Benoît Labit, Christian Gabriel Theiler, Wouter Vijvers, Cedric Kar-Wai Tsui, Umar Sheikh, Kevin Henricus Annemarie Verhaegh

Divertor detachment in the TCV tokamak has been investigated through experiments and modelling. Density ramp experiments were carried out in ohmic heated L-mode pulses with the ion del B drift directed away from the primary X-point, similar to previous stu ...

Elsevier2017

Page 5 of 8

Pedro Andres Molina Cabrera

Matteo Fontana

Umar Sheikh

Cristian Galperti

Kevin Henricus Annemarie Verhaegh

Fusion power may be seen as the energy of the future in the sense that it composes a potentially clean, cheap and unlimited power source that would reduce the worldwide dependency on non-renewable energies. Nevertheless, while nowadays the fusion reaction ...

IEEE2018

Kevin Henricus Annemarie Verhaegh

Nicola Vianello

Antonio José Pereira de Figueiredo

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 ...

IOP Publishing Ltd2017