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Jan Horacek

Cette personne n’est plus à l’EPFL

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Publications associées (204)

Overview of recent physics results from MAST

Wilfred Anthony Cooper, Ricardo Pérez Suárez, Marco Wischmeier, Jan Horacek, Ben McMillan, Paolo Ricci, Fabio Riva

IOP Publishing Ltd2017

A theoretical interpretation of the main scrape-off layer heat-flux width scaling for tokamak inner-wall limited plasmas

Richard Pitts, Jan Horacek, Paolo Ricci, Federico David Halpern

The International Tokamak Physics Activity Topical Group on scrape-off layer and divertor physics has amassed a database comprising hundreds of reciprocating Langmuir probe measurements of the main scrape-off layer heat-flux width lambda(q) in inner-wall l ...

Institute of Physics2016

The physics of the heat flux narrow decay length in the TCV scrape-off layer: experiments and simulations

Richard Pitts, Ivo Furno, Jan Horacek, Benoît Labit, Paolo Ricci, Christian Gabriel Theiler, Federico David Halpern, Federico Nespoli, Cedric Kar-Wai Tsui

2016

Overview of MAST results

Wilfred Anthony Cooper, Ricardo Pérez Suárez, Jan Horacek, Jonathan Graves, Mario Ludovico Podesta, Ben McMillan, Otto Asunta

The Mega Ampere Spherical Tokamak (MAST) programme is strongly focused on addressing key physics issues in preparation for operation of ITER as well as providing solutions for DEMO design choices. In this regard, MAST has provided key results in understand ...

Iop Publishing Ltd2015

Theory-based scaling of the SOL width in circular limited tokamak plasmas

Gilles Arnoux, Ivo Furno, Sébastien Jolliet, Jan Horacek, Benoît Labit, Joaquim Loizu Cisquella, Paolo Ricci, Annamaria Mosetto, Federico David Halpern

A theory-based scaling for the characteristic length of a circular, limited tokamak scrape-off layer (SOL) is obtained by considering the balance between parallel losses and non-linearly saturated resistive ballooning mode turbulence driving anomalous perp ...

IOP Publishing Ltd2013

ELM induced divertor heat loads on TCV

Richard Pitts, Jan Horacek, János Márki

Results are presented for heat loads at the TCV outer divertor target during ELMing H-mode using a fast IR camera. Benefitting from a recent surface cleaning of the entire first wall graphite armour, a comparison of the transient thermal response of freshl ...

Elsevier2009

Parallel SOL flow on TCV

Richard Pitts, Marco Wischmeier, Jan Horacek

Particle flow measurements parallel to the total magnetic field direction have been obtained for the first time in the TCV tokamak scrape-off layer. The plasma shape flexibility of TCV, coupled with carefully matched ohmic diverted discharges in forward an ...

2007

Time-dependent modelling of ELMing H-mode at TCV with SOLPS5

Roland Behn, Richard Pitts, Jan Horacek, János Márki, Barbora Bruant Gulejová

2007

Statistical properties of electrostatic turbulence in toroidal magnetized plasmas (Invited paper)

Ambrogio Fasoli, Ivo Furno, Jan Horacek, Mario Ludovico Podesta, Francesca Maria Poli, Benoît Labit, Gennady Plyushchev, Davoud Iraji, Paolo Ricci, Christian Gabriel Theiler

2007

Neoclassical and transport driven parallel SOL flows on TCV

Richard Pitts, Jan Horacek

2007

Time-dependent modelling of ELMing H-mode at TCV with SOLPS5

Roland Behn, Richard Pitts, Jan Horacek, János Márki, Barbora Bruant Gulejová

2007

Dissipative processes in interchange driven scrape-off layer turbulence

Richard Pitts, Jan Horacek, Jonathan Graves

First principles expressions are given for the parameters governing collisional diffusion and parallel losses of mass, momentum and energy in tokamak scrape-off layer (SOL) plasmas. These dissipative, or damping, coefficients are based on neoclassical perp ...

IOP Publishing Ltd2007

Discrepancy between modelled and measured radial electric fields in the scrape-off layer of divertor tokamaks: a challenge for 2D fluid codes?

Richard Pitts, Marco Wischmeier, Jan Horacek

Examination of radial electric field (E,.) profiles in the scrape-off layer (SOL) of ASDEX Upgrade (AUG) and JET revealed large discrepancies between 2D fluid edge modelling and experiment. Experimental profiles of plasma potential (V-p) in the outer (low ...

IOP Publishing Ltd2007

Collisionality dependent transport in TCV SOL plasmas

Richard Pitts, Jan Horacek

2007

Time-dependent modelling of ELMing H-mode at TCV with SOLPS5

Roland Behn, Richard Pitts, Jan Horacek, János Márki, Barbora Bruant Gulejová

2007

Sheath heat transmission factors on TCV

Richard Pitts, Jan Horacek, Francisco Sanchez, János Márki

Despite its importance in determining the calculated surface power flux predicted, for example, by scrape-off layer simulation codes, the sheath heat transmission factor, gamma remains a quantity whose theoretically predicted value has rarely been tested e ...

2007

Neoclassical and transport driven parallel SOL flows on TCV

Richard Pitts, Jan Horacek

2007

Neoclassical and transport driven parallel SOL flows on TCV

Richard Pitts, Jan Horacek

2007

Turbulent transport in the TCV SOL

Richard Pitts, Jan Horacek, Jonathan Graves

From probe measurements in the far SOL of TCV it is demonstrated that while the particle density profile becomes increasingly broader with increasing line averaged density, the radial variation of the fluctuation statistics remains the same. Excellent agre ...

2007

Fluctuations and transport in the TCV scrape-off layer

Richard Pitts, Jan Horacek

Fluctuations and particle transport in the scrape-off layer of TCV plasmas have been investigated by probe measurements and direct comparison with two-dimensional interchange turbulence simulations at the outer midplane. The experiments demonstrate that wi ...

IOP Publishing Ltd2007

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