Oskar Vallhagen

Doctoral Student at Subatomic, High Energy and Plasma Physics

Source: chalmers.se
Image of Oskar Vallhagen

Showing 23 publications

2024

Runaway electron fluid model extension in JOREK and ITER relevant benchmarks

V. Bandaru, M. Hoelzl, F. J. Artola et al
Physics of Plasmas. Vol. 31 (8)
Journal article
2024

Disruption runaway electron generation and mitigation in the Spherical Tokamak for Energy Production (STEP)

A. Fil, L. Henden, Sarah Newton et al
Nuclear Fusion. Vol. 64 (10)
Journal article
2024

Fluid and kinetic studies of tokamak disruptions using Bayesian optimization

Ida Ekmark, M. Hoppe, Tünde-Maria Fülöp et al
Journal of Plasma Physics. Vol. 90 (3)
Journal article
2024

Runaway electron dynamics in ITER disruptions with shattered pellet injections

Oskar Vallhagen, Lise Hanebring, F. J. Artola et al
Nuclear Fusion. Vol. 64 (8)
Journal article
2023

Bayesian optimization of massive material injection for disruption mitigation in tokamaks

Istvan Pusztai, Ida Ekmark, H. Bergström et al
Journal of Plasma Physics. Vol. 89 (2)
Journal article
2023

Drift of ablated material after pellet injection in a tokamak

Oskar Vallhagen, Istvan Pusztai, P. Helander et al
Journal of Plasma Physics. Vol. 89 (3)
Journal article
2022

Runaway dynamics in disruptions with current relaxation events

Istvan Pusztai, M. Hoppe, Oskar Vallhagen et al
48th EPS Conference on Plasma Physics, EPS 2022
Paper in proceeding
2022

Effect of two-stage shattered pellet injection on tokamak disruptions

Oskar Vallhagen, Istvan Pusztai, Mathias Hoppe et al
Nuclear Fusion. Vol. 62 (11)
Journal article
2022

Runaway dynamics in reactor-scale spherical tokamak disruptions

Esmée Berger, Istvan Pusztai, Sarah Newton et al
Journal of Plasma Physics. Vol. 88 (6)
Journal article
2022

Disruption prediction with artificial intelligence techniques in tokamak plasmas

J. Vega, A. Murari, S. Dormido-Canto et al
Nature Physics. Vol. 18 (7), p. 741-750
Review article
2022

Enhanced performance in fusion plasmas through turbulence suppression by megaelectronvolt ions

J. Garcia, Ye. O. Kazakov, J. Ongena et al
Nature Physics. Vol. 18 (7), p. 776-782
Journal article
2022

Runaway dynamics in tokamak disruptions with current relaxation

Istvan Pusztai, Mathias Hoppe, Oskar Vallhagen
Journal of Plasma Physics. Vol. 88 (4)
Journal article
2022

Overview of JET results for optimising ITER operation

J. Mailloux, N. Abid, K. Abraham et al
Nuclear Fusion. Vol. 62 (4)
Review article
2021

Effects of magnetic perturbations and radiation on the runaway avalanche

Pontus Svensson, Ola Embréus, Sarah Newton et al
Journal of Plasma Physics. Vol. 87 (2)
Journal article
2021

Modelling of runaway electron dynamics during argon-induced disruptions in ASDEX Upgrade and JET

Klara Insulander Björk, Oskar Vallhagen, Gergely Papp et al
Plasma Physics and Controlled Fusion. Vol. 63 (8)
Journal article
2020

Effect of plasma elongation on current dynamics during tokamak disruptions

Tünde Fülöp, Per Helander, Oskar Vallhagen et al
Journal of Plasma Physics. Vol. 86 (1)
Journal article
2020

Runaway dynamics in the DT phase of ITER operations in the presence of massive material injection

Oskar Vallhagen, Ola Embréus, Istvan Pusztai et al
Journal of Plasma Physics. Vol. 86 (4)
Journal article
2020

Overview of the SPARC tokamak

A. J. Creely, M. J. Greenwald, S. B. Ballinger et al
Journal of Plasma Physics. Vol. 86 (5)
Journal article
2020

MHD stability and disruptions in the SPARC tokamak

R. Sweeney, A. J. Creely, J. Doody et al
Journal of Plasma Physics. Vol. 86 (5)
Journal article
2020

Kinetic modelling of runaway electron generation in argon-induced disruptions in ASDEX Upgrade

Klara Insulander Björk, G. Papp, Ola Embréus et al
Journal of Plasma Physics. Vol. 86 (4)
Journal article
2019

Evaluation of the Dreicer runaway generation rate in the presence of high-impurities using a neural network

Linnea Hesslow, Lucas Unnerfelt, Oskar Vallhagen et al
Journal of Plasma Physics. Vol. 85 (6)
Journal article
2019

Influence of massive material injection on avalanche runaway generation during tokamak disruptions

Linnea Hesslow, Ola Embréus, Oskar Vallhagen et al
Nuclear Fusion. Vol. 59 (8)
Journal article

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Showing 1 research projects

2015–2020

Running away and radiating (PLASMA)

Ola Embréus Subatomic and Plasma Physics
Linnea Hesslow Subatomic and Plasma Physics
Longqing Yi Subatomic and Plasma Physics
Lucas Unnerfelt Subatomic and Plasma Physics
Tünde Fülöp Subatomic and Plasma Physics
Klara Insulander Björk Subatomic and Plasma Physics
Albert Johansson Subatomic and Plasma Physics
Andréas Sundström Subatomic and Plasma Physics
Julien Ferri Subatomic and Plasma Physics
Oskar Vallhagen Subatomic and Plasma Physics
Mathias Hoppe Subatomic and Plasma Physics
European Commission (EC)

24 publications exist
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