Divertor impurity seeding experiments at the COMPASS tokamak

M Komm, I Khodunov, J Cavalier, P Vondracek… - Nuclear …, 2019 - iopscience.iop.org
Partial detachment is the desired regime for the baseline burning plasma scenario in ITER
and other next-step devices, as it allows for the dissipation of the majority of the energy …

Runaway electron experiments at COMPASS in support of the EUROfusion ITER physics research

J Mlynar, O Ficker, E Macusova… - Plasma Physics and …, 2018 - iopscience.iop.org
The role of the COMPASS tokamak in research of generation, confinement and losses of
runaway electron (RE) population is presented. Recently, two major groups of experiments …

Current research into applications of tomography for fusion diagnostics

J Mlynar, T Craciunescu, DR Ferreira, P Carvalho… - Journal of fusion …, 2019 - Springer
Retrieving spatial distribution of plasma emissivity from line integrated measurements on
tokamaks presents a challenging task due to ill-posedness of the tomography problem and …

Runaway electron beam stability and decay in COMPASS

O Ficker, E Macusova, J Mlynar, D Bren… - Nuclear …, 2019 - iopscience.iop.org
This paper presents two scenarios used for generation of a runaway electron (RE) beam in
the COMPASS tokamak with a focus on the decay phase and control of the beam. The first …

Progress in diagnostics of the COMPASS tokamak

V Weinzettl, J Adamek, M Berta, P Bilkova… - Journal of …, 2017 - iopscience.iop.org
The COMPASS tokamak at IPP Prague is a small-size device with an ITER-relevant plasma
geometry and operating in both the Ohmic as well as neutral beam assisted H-modes since …

[HTML][HTML] Implementing an X-ray tomography method for fusion devices

A Jardin, J Bielecki, D Mazon, Y Peysson, K Król… - The European Physical …, 2021 - Springer
In fusion devices, the X-ray plasma emissivity contains essential information on the
magnetohydrodynamic activity, the magnetic equilibrium and on the transport of impurities …

A maximum likelihood tomographic method applied to JET gamma ray emission during the current quench

M Gelfusa, T Craciunescu, E Peluso… - Fusion Engineering and …, 2021 - Elsevier
In recent years, a new inversion method has been adapted to JET tomographic diagnostics.
It is based on the Maximum Likelihood (ML) approach and has been applied to most …

Current quench and vessel currents characterisation at the COMPASS tokamak

E Matveeva, J Havlicek, FJ Artola… - Plasma Physics and …, 2022 - iopscience.iop.org
The characterisation of plasma current quench and understanding of its underlying physical
processes play a crucial role when designing large fusion devices such as ITER. For the first …

Reconstruction of the emissivity and flow for Doppler coherence imaging spectroscopy (CIS) on J-TEXT

B Li, T Wang, L Nie, T Long, X Zhang… - Fusion Engineering and …, 2022 - Elsevier
Doppler coherence imaging spectroscopy (CIS) has been installed on J-TEXT tokamak to
provide a wealth of information for carbon impurity ions (CIII). To obtain the local emissivity …

On the effects of missing chords and systematic errors on a new tomographic method for JET bolometry

E Peluso, T Craciunescu, M Gelfusa, A Murari… - Fusion Engineering and …, 2019 - Elsevier
The accurate quantification of the emitted radiation is an important element in the
interpretation of Tokamak performance and in the design of experiments. The spatial …