On the potential of physics-informed neural networks to solve inverse problems in tokamaks

R Rossi, M Gelfusa, A Murari - Nuclear Fusion, 2023 - iopscience.iop.org
Magnetic confinement nuclear fusion holds great promise as a source of clean and
sustainable energy for the future. However, achieving net energy from fusion reactors …

A systematic investigation of radiation collapse for disruption avoidance and prevention on JET tokamak

R Rossi, M Gelfusa, T Craciunescu… - Matter and Radiation …, 2023 - pubs.aip.org
To produce fusion reactions efficiently, thermonuclear plasmas have to reach extremely high
temperatures, which is incompatible with their coming into contact with material surfaces …

Stacking of predictors for the automatic classification of disruption types to optimize the control logic

A Murari, R Rossi, M Lungaroni, M Baruzzo… - Nuclear …, 2021 - iopscience.iop.org
Nowadays, disruption predictors, based on machine learning techniques, can perform well
but they typically do not provide any information about the type of disruption and cannot …

Development of robust indicators for the identification of electron temperature profile anomalies and application to JET

R Rossi, M Gelfusa, J Flanagan, A Murari… - Plasma Physics and …, 2022 - iopscience.iop.org
Recent experience with metallic devices operating in ITER relevant regions of the
operational space, has shown that the disruptivity of these plasmas is unacceptably high …

Detection of MARFEs using visible cameras for disruption prevention

L Spolladore, R Rossi, I Wyss, P Gaudio… - Fusion Engineering and …, 2023 - Elsevier
In metallic devices, various forms of radiation collapse are one of the major causes of
plasma degradation leading to disruptions. Some of the most advanced scenarios, with …

Investigating the physics of tokamak global stability with interpretable machine learning tools

A Murari, E Peluso, M Lungaroni, R Rossi, M Gelfusa… - Applied Sciences, 2020 - mdpi.com
Featured Application Machine-learning-based techniques have been applied to disruption
prediction in Tokamaks and, by symbolic regression via genetic programming, physically …

Acceleration of an algorithm based on the maximum likelihood bolometric tomography for the determination of uncertainties in the radiation emission on JET using …

M Ruiz, J Nieto, V Costa, T Craciunescu, E Peluso… - Applied Sciences, 2022 - mdpi.com
In recent years, a new tomographic inversion method based on the Maximum Likelihood
(ML) approach has been adapted to JET bolometry. Apart from its accuracy and reliability …

Dealing with artefacts in JET iterative bolometric tomography using masks

E Peluso, M Gelfusa, T Craciunescu… - Plasma Physics and …, 2022 - iopscience.iop.org
Bolometric tomography is a widely applied technique to infer important indirect quantities in
magnetically confined plasmas, such as the total radiated power. However, being an inverse …

Fully convolutional spatio-temporal models for representation learning in plasma science

G Dong, KG Felker, A Svyatkovskiy… - Journal of Machine …, 2021 - dl.begellhouse.com
We have trained a fully convolutional spatio-temporal model for fast and accurate
representation learning in the challenging exemplar application area of fusion energy …

Comparison of a fast low spatial resolution inversion method and peaking factors for the detection of anomalous radiation patterns and disruption prediction

I Wyss, A Murari, L Spolladore, E Peluso… - Fusion Engineering and …, 2023 - Elsevier
The prediction of a disruptive event is a fundamental task for future fusion reactors. On
current tokamaks, most remedial actions have the aim of mitigating their effects, but in future …