Cedric Kar-Wai Tsui

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

2018

Poloidal asymmetry in the narrow heat flux feature in the TCV scrape-off layer

Basil Duval, Ivo Furno, Holger Reimerdes, Stefano Coda, Jan Horacek, Benoît Labit, Joaquim Loizu Cisquella, Paolo Ricci, Christian Gabriel Theiler, Federico David Halpern, Federico Nespoli, Cedric Kar-Wai Tsui

Heat flux profiles inferred from a reciprocating probe at the outer midplane of the TCV tokamak during inner wall limited discharges feature radial fall-off lengths that shorten near the last closed flux surface (LCFS) consistent with the so-called narrow ...

American Institute of Physics (AIP)2017

Spectroscopic investigations of divertor detachment in TCV

The aim of this work is to provide an understanding of detachment at TCV with emphasis on analysis of the Balmer line emission. A new Divertor Spectroscopy System has been developed for this purpose. Further development of Balmer line analysis techniques h ...

Elsevier2017

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

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

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

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IOP Publishing Ltd2019

Leonardo Pigatto

Joan Decker

Arsène Stéphane Tema Biwole

Anna Ngoc Minh Trang Vu

Nicola Offeddu

Filippo Bagnato

Davide Galassi

IOP Publishing Ltd2019

Umar Sheikh

Cristian Galperti

Jonathan Marc Philippe Faustin

In ASDEX Upgrade, the propagation of cold pulses induced by type-I edge localized modes (ELMs) is studied using electron cyclotron emission measurements, in a dataset of plasmas with moderate triangularity. It is found that the edge safety factor or the pl ...

2019

Dalziel Joseph Wilson

Antoine Pierre Emmanuel Alexis Merle

Federico Nespoli

Heinz Mueller

Anna Teplukhina

Hamish William Patten

Jose Vicente Sanchez Mut

Joan Decker

Pamela Solange Valdés Undurraga

The aim of this paper is to present a signal processing algorithm that, applied to the raw Locked Mode signal, allows us to obtain a disruption indicator in principle exploitable on different tokamaks. A common definition of such an indicator for different ...

2019

Doohyun Kim

Wouter Vijvers

Wen Bin Chng

Hoang Bao Le

Michael Oliver Reinke

Zhouji Huang

Himank Anand

Claudio Marini

Antoine Pierre Emmanuel Alexis Merle

Federico Nespoli

Heinz Mueller

Stefano Mattei

Allan Svejstrup Nielsen

Ana Susnjara

Anna Teplukhina

Janir Nuno Ramos Antunes Da Cruz

Jose Vicente Sanchez Mut

Joan Decker

Daniel Molina Romero

Dahye Choi

Andrea Salmi

Giovanni Tardini

Raffaele Tito D'Agnolo

Erwan Fabrice Koch

Donghyun Kim

Jennifer Kaitlyn Olsen

In this paper we validate the finite element code RAPLICASOL, which models radiofrequency wave propagation in edge plasmas near ICRF antennas, against calculations with the TOPICA code. We compare the output of both codes for the ASDEX Upgrade 2-strap ante ...

IOP Publishing Ltd2019

Matteo Fontana

Umar Sheikh

Cristian Galperti

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