Justin Ball

EPFL SB SPC-TH
PPB 117 (Bâtiment PPB)
Station 13
1015 Lausanne

Publications représentatives

Simulating background shear flow in local gyrokinetic simulations

B.F. McMillan, J. Ball, S. Brunner
Published in Plasma Physics and Controlled Fusion 61 (2019) 055006. in

Turbulent momentum transport due to the beating between different tokamak flux surface shaping effects

J. Ball and F.I. Parra
Published in Plasma Physics and Controlled Fusion 59 (2017) 024007. in

Effect of the Shafranov shift and the gradient of beta on intrinsic momentum transport in up-down asymmetric tokamaks

J. Ball, F.I. Parra, J. Lee, and A.J. Cerfon
Published in Plasma Physics and Controlled Fusion 58 (2016) 125015. in

Scaling of up-down asymmetric turbulent momentum flux with poloidal shaping mode number in tokamaks

J. Ball and F.I. Parra
Published in Plasma Physics and Controlled Fusion 58 (2016) 055016. in

Poloidal tilting symmetry of high order tokamak flux surface shaping in gyrokinetics

J. Ball, F.I. Parra, and M. Barnes
Published in Plasma Physics and Controlled Fusion 58 (2016) 045023. in

ARC: A compact, high-field, fusion nuclear science facility and demonstration power plant with demountable magnets

B. Sorbom, J. Ball, T.R. Palmer, F.J. Mangiarotti, J.M. Sierchio, P. Bonoli, C. Kasten, D.A. Sutherland, H.S. Barnard, C.B. Haakonsen, J. Goh, C. Sung, and D.G. Whyte
Published in Fusion Engineering and Design 100 (2015) 378. in

Intuition for the radial penetration of flux surface shaping in tokamaks

J. Ball, F.I. Parra, and M. Barnes
Published in Plasma Physics and Controlled Fusion 57 (2015) 035006. in

Conditions for up-down asymmetry in the core of tokamak equilibria

P. Rodrigues, N.F. Loureiro, J. Ball, F.I. Parra
Published in Nuclear Fusion 54 (2014) 093003. in

Nonlinear gyrokinetic simulations of intrinsic rotation in up-down asymmetric tokamaks

J. Ball
Published in Massachusetts Institute of Technology Master's Thesis (2013). in

Turbulence-generated stepped safety factor profiles in tokamaks with low magnetic shear

A. VolčokasJ. BallG. Di GiannataleS. Brunner

Physical Review E. 2025. DOI : 10.1103/958f-qzjf.

On the interplay between plasma triangularity and micro-tearing turbulence

A. BalestriJ. BallS. Coda

Plasma Physics and Controlled Fusion. 2025. DOI : 10.1088/1361-6587/ae1327.

On the feasibility of Ohmically heated negative triangularity tokamak power plants

A. BalestriJ. BallS. Coda

Nuclear Fusion. 2025. DOI : 10.1088/1741-4326/ae01bd.

Global electromagnetic gyrokinetic simulations of internal transport barriers in reversed-shear tokamaks

G. Di GiannataleA. VolčokasJ. BallA. BottinoS. Brunner  et al.

Plasma Physics and Controlled Fusion. 2025. DOI : 10.1088/1361-6587/ade1f7.

Reducing Turbulent Transport in Tokamaks by Combining Intrinsic Rotation and the Low Momentum Diffusivity Regime

H. SunJ. BallS. BrunnerA. FieldB. Patel  et al.

Nuclear Fusion. 2025. DOI : 10.1088/1741-4326/ade1ed.

A Quasilinear Model for Momentum Transport Including Rotation and Electron-scale Turbulence

H. SunJ. BallS. Brunner

PLASMA PHYSICS AND CONTROLLED FUSION. 2025. DOI : 10.1088/1361-6587/ade0e9.

Electromagnetic instability and turbulence in plasmas with positive and negative triangularity

M. J. PueschelP. MulhollandO. SauterR. CoosemansJ. Ball  et al.

Physics of Plasmas. 2025. DOI : 10.1063/5.0255557.

Numerical study of turbulent eddy self-interaction in tokamaks with low magnetic shear. Part II: Nonlinear simulations

A. VolcokasJ. BallS. Brunner

PLASMA PHYSICS AND CONTROLLED FUSION. 2025. DOI : 10.1088/1361-6587/ad8dfd.

Numerical study of turbulent eddy self-interaction in tokamaks with low magnetic shear. Part I: Linear simulations

A. VolcokasJ. BallS. Brunner

PLASMA PHYSICS AND CONTROLLED FUSION. 2025. DOI : 10.1088/1361-6587/ad9058.

Gyrokinetic investigation of plasma turbulence self-organization at low magnetic shear in tokamaks

A. Volčokas

Lausanne, EPFL, 2025. DOI : 10.5075/epfl-thesis-10964.

Negative triangularity scenarios: from TCV and AUG experiments to DTT predictions

A. MarianiL. AuconeA. BalestriP. ManticaG. Merlo  et al.

Nuclear Fusion. 2024. DOI : 10.1088/1741-4326/ad6ea0.

Physical insights from the aspect ratio dependence of turbulence in negative triangularity plasmas

A. BalestriJ. R. BallS. CodaD. J. Cruz-ZabalaM. Garcia-Munoz  et al.

Plasma Physics And Controlled Fusion. 2024. DOI : 10.1088/1361-6587/ad4d1d.

Study of impurity C transport and plasma rotation in negative triangularity on the TCV tokamak

F. BagnatoB. P. DuvalO. SauterS. CodaA. Karpushov  et al.

Plasma Physics And Controlled Fusion. 2024. DOI : 10.1088/1361-6587/ad5229.

Experiments and gyrokinetic simulations of TCV plasmas with negative triangularity in view of DTT operations

A. BalestriP. ManticaA. MarianiF. BagnatoT. Bolzonella  et al.

Plasma Physics And Controlled Fusion. 2024. DOI : 10.1088/1361-6587/ad4674.

Reducing transport via extreme flux-surface triangularity

M. J. PueschelS. CodaA. BalestriJ. R. BallR. J. J. Mackenbach  et al.

Nuclear Fusion. 2024. DOI : 10.1088/1741-4326/ad3563.

A new quasilinear model for turbulent momentum transport in tokamaks with flow shear and plasma shaping

H. SunJ. R. BallS. BrunnerA. Volcokas

Nuclear Fusion. 2024. DOI : 10.1088/1741-4326/ad2583.

Analysis of edge transport in L-mode negative triangularity TCV discharges

P. MuscenteP. InnocenteJ. BallS. Gorno

Nuclear Materials and Energy. 2023. DOI : 10.1016/j.nme.2023.101386.

Local gyrokinetic simulations of tokamaks with non-uniform magnetic shear

J. BallS. Brunner

Plasma Physics And Controlled Fusion. 2023. DOI : 10.1088/1361-6587/aca715.

Study of fast-ion-driven toroidal Alfvén eigenmodes impacting on the global confinement in TCV L-mode plasmas

S. MazziM. VallarU. KumarO. KrutkinJ. Poley Sanjuán  et al.

Frontiers in Physics. 2023. DOI : 10.3389/fphy.2023.1225787.

Ultra long turbulent eddies, magnetic topology, and the triggering of internal transport barriers in tokamaks

A. VolcokasJ. BallS. Brunner

Nuclear Fusion. 2023. DOI : 10.1088/1741-4326/aca213.

Three-dimensional inhomogeneity of electron-temperature-gradient turbulence in the edge of tokamak plasmas

J. F. ParisiF. I. ParraC. M. RoachM. R. HardmanA. A. Schekochihin  et al.

Nuclear Fusion. 2022. DOI : 10.1088/1741-4326/ac786b.

A Gyrokinetic Moment-Based Approach for the Simulation of the Boundary Plasmas in Fusion Devices

B. J. FreiP. RicciJ. R. BallA. C. D. HoffmannL. N. Stenger

PET, Lausanne, SPC, 14-15/09/21.

Development of advanced linearized gyrokinetic collision operators using a moment approach

B. J. FreiJ. R. BallA. C. D. HoffmannR. JorgeP. Ricci  et al.

Journal of Plasma Physics. 2021. DOI : 10.1017/S0022377821000830.

Effect of collisions on non-adiabatic electron dynamics in ITG-driven microturbulence

C. J. AjayS. BrunnerJ. Ball

Physics Of Plasmas. 2021. DOI : 10.1063/5.0055303.

A Gyrokinetic Moment-Based Approach for the Simulation of the Boundary Plasmas in Fusion Devices

B. J. FreiP. RicciJ. R. BallA. C. D. HoffmannL. N. Stenger

PASC, Geneva, 2021-07-07.

A non-twisting flux tube for local gyrokinetic simulations

J. BallS. Brunner

Plasma Physics And Controlled Fusion. 2021. DOI : 10.1088/1361-6587/abf8f4.

Toroidal and slab ETG instability dominance in the linear spectrum of JET-ILW pedestals

J. F. ParisiF. ParraC. M. RoachC. GiroudW. Dorland  et al.

Nuclear Fusion. 2020. DOI : 10.1088/1741-4326/abb891.

How eigenmode self-interaction affects zonal flows and convergence of tokamak core turbulence with toroidal system size

A. Chandrarajan JayalekshmiS. BrunnerMcMillan BenJ. BallJ. Dominski  et al.

Journal of Plasma Physics. 2020. DOI : 10.1017/S0022377820000999.

Eliminating turbulent self-interaction through the parallel boundary condition in local gyrokinetic simulations

J. BallS. BrunnerA. C.J.

Journal of Plasma Physics. 2020. DOI : 10.1017/S0022377820000197.

Maximizing specific energy by breeding deuterium

J. Ball

Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab394c.

Physics research on the TCV tokamak facility: from conventional to alternative scenarios and beyond

S. CodaM. AgostiniR. AlbaneseS. AlbertiE. Alessi  et al.

Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab25cb.

Enseignement et PhD

Doctorant·es actuel·les

Oraz Anuaruly, Haomin Sun, Alessandro Balestri

A co-dirigé les thèses EPFL de

Arnas Volcokas