38 citations · 187 across the 17 of their papers we have counts for
17 papers
AXUV synthetic diagnostic for ASDEX Upgrade and its application for SPI simulations
Ferenc Lengyel, Weikang Tang, Matthias Hölzl +14
We introduce an Absolute eXtended UltraViolet (AXUV) diode-based camera forward-modelling tool to support the validation of mitigated disruption simulations and the interpretation…
A new model for runaway electron transport based on chaotic Hamiltonian systems
Dániel Jánosi, Anikó Horváth, Hannes Bergström +5
The transport of runaway electrons (RE) in ergodic magnetic geometries is an area of active study. Computing the transport from the direct simulation of particle trajectories is co…
The Atomic Beam Probe Synthetic Diagnostic and its Application in Fusion Plasmas
Mátyás Aradi, Dániel I. Réfy, Shimpei Futatani +6
The Atomic Beam Probe was installed on the COMPASS tokamak in Prague as an extension of the Beam Emission Spectroscopy. The construction and installation of the diagnostic were pre…
Runaway electron-induced plasma facing component damage in tokamaks
S. Ratynskaia, M. Hoelzl, E. Nardon +31
This Roadmap article addresses the critical and multifaceted challenge of plasma-facing component (PFC) damage caused by runaway electrons (REs) in tokamaks, a phenomenon that pose…
Feasibility of the EDICAM camera for runaway electron detection in JT-60SA disruptions
Soma Olasz, Mathias Hoppe, Tamás Szepesi +3
The visible camera system EDICAM (Event Detection Intelligent Camera), recently installed on JT-60SA, is simulated to assess whether it can be used for measuring synchrotron radiat…
Special behavior of alkali beam emission spectroscopy in low-ion-temperature plasma
P. Balázs, O. Asztalos, G. Anda +4
Beam emission spectroscopy (BES) is a powerful plasma diagnostic method especially suited for the measurement of plasma density and its fluctuations. As such, synthetic BES codes a…
Validity of models for Dreicer generation of runaway electrons in dynamic scenarios
S. Olasz, O. Embreus, M. Hoppe +6
Runaway electron modelling efforts are motivated by the risk these energetic particles pose to large fusion devices. The sophisticated kinetic models can capture most features of t…
Runaway electron modelling in the self-consistent core European Transport Simulator, ETS
Gergo I. Pokol, Soma Olasz, Boglarka Erdos +12
Relativistic runaway electrons are a major concern in tokamaks. The European framework for Integrated Modelling (EU-IM), facilitates the integration of different plasma simulation…
Inertial fusion without compression does not work either with or without nanoplasmonics
Istvan B Foldes, Gergo I Pokol
A recently published scheme for inertial fusion based on instantaneous heating of an uncompressed fuel is criticized. It is shown that efficient fusion and time-like fusion burn pr…
Spatiotemporal analysis of the runaway distribution function from synchrotron images in an ASDEX Upgrade disruption
M. Hoppe, L. Hesslow, O. Embreus +14
Synchrotron radiation images from runaway electrons (REs) in an ASDEX Upgrade discharge disrupted by argon injection are analyzed using the synchrotron diagnostic tool SOFT and cou…
Bicoherence analysis of nonstationary and nonlinear processes
Peter Zsolt Poloskei, Gergely Papp, Gabor Por +2
Bicoherence analysis is a well established method for identifying the quadratic nonlinearity of stationary processes. However, it is often applied without checking the basic assump…
Experimental investigation of the radial structure of energetic particle driven modes
L. Horvath, G. Papp, Ph. Lauber +8
Alfvén eigenmodes (AEs) and energetic particle modes (EPMs) are often excited by energetic particles (EPs) in tokamak plasmas. One of the main open questions concerning EP driven i…
Reducing systematic errors in time-frequency resolved mode number analysis
L. Horváth, P. Zs. Poloskei, G. Papp +3
The present paper describes the effect of magnetic pick-up coil transfer functions on mode number analysis in magnetically confined fusion plasmas. Magnetic probes mounted inside t…
Energetic electron transport in the presence of magnetic perturbations in magnetically confined plasmas
Gergely Papp, Michael Drevlak, Gergő I. Pokol +1
The transport of energetic electrons is sensitive to magnetic perturbations. By using 3D numerical simulation of test particle drift orbits we show that the transport of untrapped…
Quasi-linear analysis of the extraordinary electron wave destabilized by runaway electrons
G. I. Pokol, A. Kómár, A. Budai +2
Runaway electrons with strongly anisotropic distributions present in post-disruption tokamak plasmas can destabilize the extraordinary electron (EXEL) wave. The present work invest…
Three-dimensional modeling of beam emission spectroscopy measurements in fusion plasmas
D. Guszejnov, G. I. Pokol, I. Pusztai +4
One of the main diagnostic tools for measuring electron density profiles and the characteristics of long wavelength turbulent wave structures in fusion plasmas is Beam Emission Spe…
Electromagnetic waves destabilized by runaway electrons in near-critical electric fields
A. Kómár, G. I. Pokol, T. Fülöp
Runaway electron distributions are strongly anisotropic in velocity space. This anisotropy is a source of free energy that may destabilize electromagnetic waves through a resonant…