Jonathan Graves
EPFL SB SPC-TH
PPB 114 (Bâtiment PPB)
Station 13
1015 Lausanne
Web site: Web site: https://spc.epfl.ch/
Web site: Web site: https://sph.epfl.ch/
EPFL > VPA-AVP-DLE > AVP-DLE-EDOC > EDPY-ENS
EPFL > VPA-AVP-DLE > AVP-DLE-EDOC > EDPY-GE
Web site: Web site: https://go.epfl.ch/phd-edpy
Biography
Jonathan Graves shares his time between the Swiss Plasma Center in EPFL where he is a Senior Scientist, and the University of York, where he is Professor of Physics and Chair in Magnetic Confinement Fusion Plasmas. He is also Editor-in-Chief of the journal Plasma Physics and Controlled Fusion. He achieved first class joint honours in Electronic Engineering and Mathematics from the University of Nottingham, UK in 1996. During his Ph.D. (Theoretical Mechanics, University of Nottingham 1999) he was based in at Culham Laboratory, United Kingdom Atomic Energy Authority, developing kinetic models of plasma instabilities, and participating in deuterium-tritium experimental analysis in the Joint European Torus. After a short time in industry he took a position at the Swiss Plasma Center at EPFL, becoming a Senior Scientist in 2014. In 2015 he became a member of the EUROfusion Scientific and Technical Advisory Committee (STAC) and a member of the EUROfusion DEMO Technical Advisory Group. He became Director of the Varenna-Lausanne International Workshop in Theory of Fusion Plasmas in 2020. In 2022 he became Chair in Magnetic Confinement Fusion Plasmas, Professor of the School of Physics, Engineering and Technology, University of York, UK. And he became Editor-in-Chief of Plasma Physics and Controlled Fusion in 2023.Research Interests
Magnetohydrodynamic confinement and stability of tokamak plasmas, linear and non-linear resistive instabilities, long wavelength kinetic instabilities in tokamaks, kinetic theory, fast particle physics, 3D Alfvenic and Wave codes (LEMan code), guiding centre theory and codes (VENUS-LEVIS code), ion cyclotron resonance heating in 3D (SCENIC code), impurity transport in 3D rotating plasmasPublications
Infoscience publications
Graves j.
2025
MHD, disruptions and control physics: Chapter 4 of the special issue: on the path to tokamak burning plasma operation
Nuclear Fusion. 2025. DOI : 10.1088/1741-4326/ade7a0.Schemes for Generating Deeply Trapped Fast Ions Via Ion-cyclotron-resonance Heating in Wendelstein 7-x
PLASMA PHYSICS AND CONTROLLED FUSION. 2025. DOI : 10.1088/1361-6587/adc834.2024
Direct prediction of saturated neoclassical tearing modes in slab using an equilibrium approach
Plasma Physics and Controlled Fusion. 2024. DOI : 10.1088/1361-6587/ad97dd.News and announcements from the Editor-in-Chief for 2024
Plasma Physics And Controlled Fusion. 2024. DOI : 10.1088/1361-6587/ad163b.Interplay of plasma resistivity and rotation on β limits in free boundary diverted tokamaks
Plasma Physics And Controlled Fusion. 2024. DOI : 10.1088/1361-6587/ad0b35.2023
Equilibrium β-limits dependence on bootstrap current in classical stellarators
Journal of Plasma Physics. 2023. DOI : 10.1017/S0022377823000910.Numerical tools for burning plasmas
Plasma Physics And Controlled Fusion. 2023. DOI : 10.1088/1361-6587/acce68.Occam's razor on the mechanism of resistive-wall-mode-induced beta limits in diverted tokamaks
Physical Review E. 2023. DOI : 10.1103/PhysRevE.107.055203.Fast ion generation by combined RF-NBI heating in W7-X
Journal of Plasma Physics. 2023. DOI : 10.1017/S0022377823000302.Exact expression for the hot plasma conductivity kernel in configuration space
Fundamental Plasma Physics. 2023. DOI : 10.1016/j.fpp.2023.100008.Equilibrium pressure limits in stellarators
Lausanne, EPFL, 2023. p. 221. DOI : 10.5075/epfl-thesis-10070.Exploration of the parameter space for the excitation and saturation of Edge Harmonic Oscillations
Lausanne, EPFL, 2023. p. 195. DOI : 10.5075/epfl-thesis-9763.Fast ion generation with ICRF waves and beams in the Wendelstein 7-X stellarator
Lausanne, EPFL, 2023. p. 153. DOI : 10.5075/epfl-thesis-10130.2022
Modeling of saturated external MHD instabilities in tokamaks: A comparison of 3D free boundary equilibria and nonlinear stability calculations
Physics Of Plasmas. 2022. DOI : 10.1063/5.0090008.Finite magnetic well effects on resistive and drift-resistive ballooning modes in a shaped tokamak
Nuclear Fusion. 2022. DOI : 10.1088/1741-4326/ac5f7c.Stellarator optimization for nested magnetic surfaces at finite β and toroidal current
Physics of Plasmas. 2022. DOI : 10.1063/5.0080809.Overview of JET results for optimising ITER operation
Nuclear Fusion. 2022. DOI : 10.1088/1741-4326/ac47b4.Overview of the TCV tokamak experimental programme
Nuclear Fusion. 2022. DOI : 10.1088/1741-4326/ac369b.Experimental confirmation of efficient island divertor operation and successful neoclassical transport optimization in Wendelstein 7-X
Nuclear Fusion. 2022. DOI : 10.1088/1741-4326/ac2cf5.Verification and validation of linear gyrokinetic and kinetic-MHD simulations for internal kink instability in DIII-D tokamak
Nuclear Fusion. 2022. DOI : 10.1088/1741-4326/ac48a6.Pressure driven long wavelength MHD instabilities in an axisymmetric toroidal resistive plasma
Plasma Physics And Controlled Fusion. 2022. DOI : 10.1088/1361-6587/ac3496.Heavy impurity transport in tokamaks subject to plasma rotation, NTV and the influence of saturated ideal MHD perturbations
Plasma Physics And Controlled Fusion. 2022. DOI : 10.1088/1361-6587/ac3964.Heavy impurity transport in the presence of 3D MHD ideal perturbations
Lausanne, EPFL, 2022. p. 144. DOI : 10.5075/epfl-thesis-8940.2021
Edge harmonic oscillations in plasmas with a separatrix and the effect of edge magnetic shear
Plasma Physics And Controlled Fusion. 2021. DOI : 10.1088/1361-6587/ac2d77.Computation of multi-region, relaxed magnetohydrodynamic equilibria with prescribed toroidal current profile
Journal of Plasma Physics. 2021. DOI : 10.1017/S0022377821000520.Ion cyclotron resonance heating with shifted separatrix
Nuclear Fusion. 2021. DOI : 10.1088/1741-4326/abdfdc.2020
Sawtooth control with modulated ICRH in JET-ILW H-mode plasmas
Nuclear Fusion. 2020. DOI : 10.1088/1741-4326/abb424.Identification of an Optimized Heating and Fast Ion Generation Scheme for the Wendelstein 7-X Stellarator
Physical Review Letters. 2020. DOI : 10.1103/PhysRevLett.124.155001.Kinetic-MHD stability of virtually collisionless plasmas
Lausanne, EPFL, 2020. p. 177. DOI : 10.5075/epfl-thesis-10142.2019
A power-balance model of the density limit in fusion plasmas: application to the L-mode tokamak
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab3b31.Suprathermal electron driven fishbone instability in the TCV tokamak
Plasma Physics and Controlled Fusion. 2019. DOI : 10.1088/1361-6587/ab5147.Interpretative and predictive modelling of Joint European Torus collisionality scans
Plasma Physics And Controlled Fusion. 2019. DOI : 10.1088/1361-6587/ab2f45.A new mechanism for increasing density peaking in tokamaks: improvement of the inward particle pinch with edge E x B shearing
Plasma Physics And Controlled Fusion. 2019. DOI : 10.1088/1361-6587/ab31a4.Novel method for determination of tritium depth profiles in metallic samples
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab3056.Reduced models for parallel magnetic field fluctuations and their impact on pressure gradient driven MHD instabilities in axisymmetric toroidal plasmas
Plasma Physics and Controlled Fusion. 2019. DOI : 10.1088/1361-6587/ab368b.Control of the hydrogen:deuterium isotope mixture using pellets in JET
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab3812.Modification of the Alfven wave spectrum by pellet injection
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab382b.A wall-aligned grid generator for non-linear simulations of MHD instabilities in tokamak plasmas
Computer Physics Communications. 2019. DOI : 10.1016/j.cpc.2019.05.007.Ion cyclotron resonance heating scenarios for DEMO
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab318b.Role of fast ion pressure in the isotope effect in JET L-mode plasmas
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab2d4f.Deep neural networks for plasma tomography with applications to JET and COMPASS
Journal Of Instrumentation. 2019. DOI : 10.1088/1748-0221/14/09/C09011.Gyrokinetic analysis and simulation of pedestals to identify the culprits for energy losses using 'fingerprints'
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab1fa2.Erosion, screening, and migration of tungsten in the JET divertor
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab2aef.First principles and integrated modelling achievements towards trustful fusion power predictions for JET and ITER
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab25b1.Simulation of neutron emission in neutral beam injection heated plasmas with the real-time code RABBIT
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab1edd.Direct gyrokinetic comparison of pedestal transport in JET with carbon and ITER-like walls
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab25bd.Current Research into Applications of Tomography for Fusion Diagnostics
Journal of Fusion Energy. 2019. DOI : 10.1007/s10894-018-0178-x.Current and pressure gradient triggering and nonlinear saturation of low-n edge harmonic oscillations in tokamaks
Plasma Physics And Controlled Fusion. 2019. DOI : 10.1088/1361-6587/ab2444.Adaptive learning for disruption prediction in non-stationary conditions
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab1ecc.Modelling of non-linear edge harmonic oscillations and the effect of non-axisymmetric magnetic coils
2019. 46th EPS Conference on Plasma Physics, Milan, Italy, July 08-12,2019.Advanced RF heating schemes in preparation for ICRF heating and fastion experiments in the W7-X stellarator
2019. 46th EPS Conference on Plasma Physics, Milan, Italy, July 8-12, 2019.Self-consistent pedestal prediction for JET-ILW in preparation of the DT campaign
Physics Of Plasmas. 2019. DOI : 10.1063/1.5096870.Singular global components and frequency shift of the geodesic acoustic continuum modes in shaped tokamaks
Plasma Physics And Controlled Fusion. 2019. DOI : 10.1088/1361-6587/ab1d22.The software and hardware architecture of the real-time protection of in-vessel components in JET-ILW
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab1a79.Micro ion beam analysis for the erosion of beryllium marker tiles in a tokamak limiter
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 2019. DOI : 10.1016/j.nimb.2018.08.028.Scenario development for D-T operation at JET
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab1cca.First mirror test in JET for ITER: Complete overview after three ILW campaigns
Nuclear Materials and Energy. 2019. DOI : 10.1016/j.nme.2019.02.009.Investigation of deuterium trapping and release in the JET ITER-like wall divertor using TDS and TMAP
Nuclear Materials and Energy. 2019. DOI : 10.1016/j.nme.2019.02.031.Deposition of impurity metals during campaigns with the JET ITER-like Wall
Nuclear Materials and Energy. 2019. DOI : 10.1016/j.nme.2018.12.024.Fast ion synergistic effects in JET high performance pulses
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab02ae.Diagnostic of fast-ion energy spectra and densities in magnetized plasmas
Journal Of Instrumentation. 2019. DOI : 10.1088/1748-0221/14/05/C05019.Investigation of deuterium trapping and release in the JET divertor during the third ILW campaign using TDS
Nuclear Materials and Energy. 2019. DOI : 10.1016/j.nme.2019.03.012.The effect of beryllium oxide on retention in JET ITER-like wall tiles
Nuclear Materials and Energy. 2019. DOI : 10.1016/j.nme.2019.02.022.Dynamic modelling of local fuel inventory and desorption in the whole tokamak vacuum vessel for auto-consistent plasma-wall interaction simulations
Nuclear Materials and Energy. 2019. DOI : 10.1016/j.nme.2019.03.019.RF sheath modeling of experimentally observed plasma surface interactions with the JET ITER-Like Antenna
Nuclear Materials and Energy. 2019. DOI : 10.1016/j.nme.2019.03.009.Improved ERO modelling of beryllium erosion at ITER upper first wall panel using JET-ILW and PISCES-B experience
Nuclear Materials and Energy. 2019. DOI : 10.1016/j.nme.2019.03.016.Modelling of the effect of ELMs on fuel retention at the bulk W divertor of JET
Nuclear Materials and Energy. 2019. DOI : 10.1016/j.nme.2019.03.013.Excitation Mechanism of Low-n Edge Harmonic Oscillations in Edge Localized Mode-Free, High Performance, Tokamak Plasmas
Physical Review Letters. 2019. DOI : 10.1103/PhysRevLett.122.155003.Determination of isotope ratio in the divertor of JET-ILW by high-resolution H alpha spectroscopy: H-D experiment and implications for D-T experiment
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab0000.Recurrence Plots for Dynamic Analysis of Type-I ELMs at JET With a Carbon Wall
Ieee Transactions On Plasma Science. 2019. DOI : 10.1109/TPS.2019.2901313.Analysis of the outer divertor hot spot activity in the protection video camera recordings at JET
Fusion Engineering And Design. 2019. DOI : 10.1016/j.fusengdes.2018.12.079.Improved neutron activation dosimetry for fusion
Fusion Engineering and Design. 2019. DOI : 10.1016/j.fusengdes.2019.01.002.Physics research on the TCV tokamak facility: from conventional to alternative scenarios and beyond
Nuclear Fusion. 2019. DOI : 10.1088/1741-4326/ab25cb.Heavy impurity transport in tokamaks with plasma flows and saturated 3D perturbations
2019. The 46th EPS Conference on Plasma Physics, Milan, Italy, July 8 - 12, 2019.Non-linear modelling of saturated internal and external MHD instabilities in tokamaks
Lausanne, EPFL, 2019. p. 150. DOI : 10.5075/epfl-thesis-9155.A Variable Structure Control Scheme Proposal for the Tokamak a Configuration Variable
Complexity. 2019. DOI : 10.1155/2019/2319560.Development and optimisation of advanced auxiliary ion heating schemes for 3D fusion plasma devices
Lausanne, EPFL, 2019. p. 198. DOI : 10.5075/epfl-thesis-9167.Beryllium global erosion and deposition at JET-ILW simulated with ERO2.0
Nuclear Materials and Energy. 2019. DOI : 10.1016/j.nme.2019.01.015.2018
Impact of electron-scale turbulence and multi-scale interactions in the JET tokamak
Nuclear Fusion. 2018. DOI : 10.1088/1741-4326/aae0a8.Application of the VUV and the soft x-ray systems on JET for the study of intrinsic impurity behavior in neon seeded hybrid discharges
Review Of Scientific Instruments. 2018. DOI : 10.1063/1.5038930.Modelling of JET hybrid plasmas with emphasis on performance of combined ICRF and NBI heating
Nuclear Fusion. 2018. DOI : 10.1088/1741-4326/aad9ad.Stellarator nonlinearly saturated periodicity-breaking ideal magnetohydrodynamic equilibrium states
Nuclear Fusion. 2018. DOI : 10.1088/1741-4326/aadbef.High-resolution tungsten spectroscopy relevant to the diagnostic of high-temperature tokamak plasmas
Physical Review A. 2018. DOI : 10.1103/PhysRevA.97.052501.Nonlinear dynamic analysis of D-alpha signals for type I edge localized modes characterization on JET with a carbon wall
Plasma Physics And Controlled Fusion. 2018. DOI : 10.1088/1361-6587/aa96cd.Effects of 3D Ideal MHD Equilibrium Geometry on Neoclassical Properties in Tokamaks: Exploring Bootstrap Current and Impurity Accumulation
Lausanne, EPFL, 2018. p. 128. DOI : 10.5075/epfl-thesis-8078.Sliding Surface Based Schemes for the Tokamak a Configuration Variable
2018. World Automation Congress (WAC), Stevenson, WA, Jun 03-06, 2018. p. 253 - 258. DOI : 10.23919/WAC.2018.8430383.Analytic study on low-n external ideal infernal modes in tokamaks with large edge pressure gradients
Journal of Plasma Physics. 2018. DOI : 10.1017/S002237781800020X.2017
Self-consistent interaction of fast particles and ICRF waves in 3D applications of fusion plasma devices
Lausanne, EPFL, 2017. p. 132. DOI : 10.5075/epfl-thesis-7283.2016
Simulation of bootstrap current in 2D and 3D ideal magnetic fields in tokamaks
2016. Joint Meeting of the 597th Wilhelm and Else Heraeus Seminar / 7th International Workshop on Stochasticity in Fusion Plasmas, Greifswald, GERMANY, SEP 10-12, 2015. DOI : 10.1088/0029-5515/56/9/092004.Role of infernal modes dynamics and plasma rotation on the onset of NTMs in ECH-ECCD TCV plasmas
2016. Joint Lausanne-Varenna Workshop, Varenna, August 27, 2016. DOI : 10.1088/1742-6596/775/1/012002.ICRH induced particle losses in Wendelstein 7-X
2016. 20th International Stellarator-Heliotron Workshop, Greifswald, Germany, 5 - 9 October 2015. DOI : 10.1088/0741-3335/58/7/074004.2015
Applications of the SCENIC code package to the minority ion-cyclotron heating in Wendelstein 7-X plasmas
2015. 21st Topical Conference on Radio Frequency Power in Plasmas, Lake Arrowhead, California, USA, April 27-29, 2015. DOI : 10.1063/1.4936501.Energetic ion dynamics and confinement in 3D saturated MHD configurations
Lausanne, EPFL, 2015. DOI : 10.5075/epfl-thesis-6561.Stability of Tokamak and RFP Plasmas with an Extended Region of Low Magnetic Shear
Lausanne, EPFL, 2015. p. 195. DOI : 10.5075/epfl-thesis-6636.Free boundary equilibrium in 3D tokamaks with toroidal rotation
Nuclear Fusion. 2015. DOI : 10.1088/0029-5515/55/6/063032.2014
An approximate single fluid 3-dimensional magnetohydrodynamic equilibrium model with toroidal flow
2014. DOI : 10.1088/0741-3335/56/9/094004.Fast growing resistive two fluid instabilities in hybrid-like tokamak configuration
Plasma Physics and Controlled Fusion. 2014. DOI : 10.1088/0741-3335/56/7/075025.Modeling of ion-cyclotron resonant heating in Wendelstein 7-X equilibrium
2014. THEORY OF FUSION PLASMAS JOINT VARENNA - LAUSANNE INTERNATIONAL WORKSHOP, Varenna, Italy, September 1-5, 2014. DOI : 10.1088/1742-6596/561/1/012006.Ideal saturated MHD helical structures in axisymmetric hybrid plasmas
Nuclear Fusion. 2014. DOI : 10.1088/0029-5515/54/6/064017.2011
Individual Sawtooth pacing by synchronized ECCD in TCV
2011. 19th Topical Conference on Radio Frequency Power in Plasmas, US-Japan Workshop on RF Physics, Newport, USA, June 1-3, 2011. DOI : 10.1063/1.3665024.2009
Plasma Turbulence studied by means of Correlation-ECE in the TEM domain in TCV
2nd EFDA Transport Topical Group, JET, Culham, Abingdon, UK, September 16-18, 2009.Self-consistent ICRF simulations in fully shaped anisotropic plasmas
European Fusion Theory Conference EFTC, Riga, Latvia.2008
The effect of plasma triangularity on turbulent transport: modelling TCV experiments by linear and non linear gyrokinetic simulations
2008. 50th APS Division of Plasma Physics Meeting, Dallas, Texas, USA, November 17-21, 2008.Recent results of ECRH/ECCD experiments on TCV
2008. 18th International Toki Conference (ITC18), Ceratopia Toki, Toki Gifu, Japan, December 9-12, 2008.Physics Insight and Performance Benefit from Plasma Shaping Experiments in MHD and Energy Transport in the TCV Tokamak
2008. 22nd IAEA Fusion Energy Conf. (FEC) - 50th Anniversary of Controlled Nuclear Fusion Research, Geneva, Switzerland, October 13-18, 2008. p. EX/P5 - 15.2007
NTM prevention by ICCD control of fast-ion-stabilised sawteeth
2007. 34th EPS Conference on Plasma Physics, Warsaw Congress Centre, Poland, 2007-07-02.Physics insight from plasma shaping experiments in the TCV tokamak
2007. 49th APS Conference, Orlando, Florida, USA, 2007-11-12.NTM prevention by ICCD control of fast-ion-stabilised sawteeth
34th EPS Conference on Plasma Physics, Warsaw Congress Centre, Poland, 2007-07-02.2006
Exploring a small sawtooth regime in Joint European Torus plasmas with counterinjected neutral beams
Physics of Plasmas. 2006. DOI : 10.1063/1.2162528.2004
Small sawtooth regimes in JET plasmas
2004. 31st EPS Conference on Plasma Physics.2003
Influence of asymmetric energetic ion distributions on Sawtooth stabilization
2003Physics Studies with ECH/CD in the TCV tokamak
2003. 15th Topical Conference on Radio Frequency Power in Plasmas, Moran, Wyoming, USA, May 2003. p. 297 - 304. DOI : 10.1063/1.1638046.Sawtooth studies in JET with reversed B
2003. 45th Annual APS Division of Plasma Physics Meeting 2003, Albuquerque, New Mexico, USA, October 2003.2002
Comment on deployment of analytical expressions for flux surface shaping and toroidal effects on the ideal MHD m=n=1 instability
2002Research
Research
Magnetohydrodynamic confinement and stability of tokamak plasmas, linear and non-linear resistive instabilities, long wavelength kinetic instabilities in tokamaks, kinetic theory, fast particle physics, 3D Alfvenic and Wave codes (LEMan code), guiding centre theory and codes (VENUS-LEVIS code), ion cyclotron resonance heating in 3D (SCENIC code), impurity transport in 3D rotating plasmasTeaching & PhD
Teaching
Physics