Evolution of heavy ion beam probing from the origins to study of symmetric structures in fusion plasmas

A Melnikov - Symmetry, 2021 - mdpi.com
The overview discusses development of the unique fusion plasma diagnostics—Heavy Ion
Beam Probing (HIBP) in application to toroidal magnetic plasma devices. The basis of the …

Turbulence dynamics during the pedestal evolution between edge localized modes in magnetic fusion devices

A Diallo, FM Laggner - Plasma Physics and Controlled Fusion, 2020 - iopscience.iop.org
Fusion performance has been shown to be related to the H-mode pedestal structure. The
pedestal is associated with steep gradients that are the source of free energy for …

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 …

[HTML][HTML] MHD activity induced coherent mode excitation in the edge plasma region of ADITYA-U tokamak

K Singh, S Dolui, B Hegde, L Lachhvani, S Patel… - Physics of …, 2024 - pubs.aip.org
In this paper, we report the excitation of coherent density and potential fluctuations induced
by magnetohydrodynamic (MHD) activity in the edge plasma region of ADITYA-U tokamak …

Overview of the RFX-mod fusion science activity

M Zuin, S Dal Bello, L Marrelli, ME Puiatti… - Nuclear …, 2017 - iopscience.iop.org
This paper reports the main recent results of the RFX-mod fusion science activity. The RFX-
mod device is characterized by a unique flexibility in terms of accessible magnetic …

Study of Geodesic Acoustic and Alfvén Modes in Toroidal Fusion Devices (Brief Review)

AV Melnikov, VA Vershkov, SA Grashin, MA Drabinskiy… - JETP Letters, 2022 - Springer
Geodesic acoustic modes, Alfvén eigenmodes, stationary and oscillating components of the
electric field, and their relations to plasma confinement have been studied. Theoretical …

Identification of Zonal Flows and Their Spatial Distribution in the TJ-II Stellarator Plasmas

GA Sarancha, LG Eliseev, PO Khabanov, NK Kharchev… - JETP Letters, 2022 - Springer
For low-frequency kHz) plasma electric potential oscillations, measured in two toroidally
spaced vertical cross sections of the TJ-II stellarator (m, m, T) using double heavy ion beam …

Stability optimization of energetic particle driven modes in nuclear fusion devices: the FAR3d gyro-fluid code

J Varela, D Spong, L Garcia, Y Ghai, J Ortiz… - Frontiers in …, 2024 - frontiersin.org
The development of reduced models provide efficient methods that can be used to perform
short term experimental data analysis or narrow down the parametric range of more …

Detection of Alfvén eigenmodes on COMPASS with generative neural networks

V Škvára, V Šmídl, T Pevný, J Seidl… - Fusion Science and …, 2020 - Taylor & Francis
Chirping Alfvén eigenmodes were observed at the COMPASS tokamak. They are believed
to be driven by runaway electrons (REs), and as such, they provide a unique opportunity to …

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 …