Joaquim Loizu
EPFL SB SPC-TH
PPB 215 (Bâtiment PPB)
Station 13
CH-1015 Lausanne
Biography
Joaquim Loizu graduated in Physics at the École Polytechnique Fédérale de Lausanne, carrying out his Master thesis project at the Center for Bio-Inspired Technology, Imperial College London, on the theoretical and numerical study of the biophysics of light-sensitive neurons.
In 2009, he started his PhD studies with Prof. Paolo Ricci at the Swiss Plasma Center, the major plasma and fusion laboratory in Switzerland. His thesis focused on the theory of plasma-wall interactions and their effect on the mean flows and turbulence in magnetized plasmas. He obtained his PhD in December 2013.
In 2014, he joined the Max-Planck-Princeton Center for plasma research as a Postdoctoral Research Fellow, spending one year at the Princeton Plasma Physics Laboratory and one year at the Max-Planck-Institute for Plasma Physics in Greifswald, Germany. During this time, he worked on three-dimensional magnetohydrodynamics, studying the formation of singular currents and magnetic islands at rational surfaces.
In 2016, he obtained a two-years EUROfusion Postdoctoral Fellowship to carry out research at the Max-Planck-Institute for Plasma Physics in Greifswald, Germany. During this time, he focused on the computation of 3D MHD equilibria in stellarators, including the possibility of magnetic islands and magnetic field-line chaos.
In 2018, he joined the Swiss Plasma Center as a Scientist in the MHD theory group. His main research line is currently focused on the macroscopic equilbrium and stability of magnetically confined fusion plasmas.
Publications
2017
Equilibrium 𝛽-limits in classical stellarators
Journal of Plasma Physics. 2017. Vol. 83, num. 06.
DOI : 10.1017/S0022377817000861.
Unified nonlinear theory of spontaneous and forced helical resonant MHD states
Physics of Plasmas. 2017. Vol. 24, num. 4, p. 040701.
DOI : 10.1063/1.4979678.
Scrape-off-layer current loops and floating potential in limited tokamak plasmas
Journal of Plasma Physics. 2017. Vol. 83, num. 06.
DOI : 10.1017/S0022377817000927.
Poloidal asymmetry in the narrow heat flux feature in the TCV scrape-off layer
Physics of Plasmas. 2017. Vol. 24, num. 6, p. 062508.
DOI : 10.1063/1.4985075.
Non-linear simulations of the TCV Scrape-Off Layer
Nuclear Materials And Energy. 2017. Vol. 12, p. 1205-1208.
DOI : 10.1016/j.nme.2016.10.019.
A comparison between a refined two-point model for the limited tokamak SOL and self-consistent plasma turbulence simulations
Plasma Physics and Controlled Fusion. 2017. Vol. 59, num. 4, p. 044011.
DOI : 10.1088/1361-6587/aa5cf9.
2016
Verification of the ideal magnetohydrodynamic response at rational surfaces in the VMEC code
Physics of Plasmas. 2016. Vol. 23, num. 1, p. 012507.
DOI : 10.1063/1.4939881.
Verification of the SPEC code in stellarator geometries
Physics of Plasmas. 2016. Vol. 23, num. 11, p. 112505.
DOI : 10.1063/1.4967709.
Pressure-driven amplification and penetration of resonant magnetic perturbations
Physics of Plasmas. 2016. Vol. 23, num. 5, p. 055703.
DOI : 10.1063/1.4944818.
The GBS code for tokamak scrape-off layer simulations
Journal of Computational Physics. 2016. Vol. 315, p. 388-408.
DOI : 10.1016/j.jcp.2016.03.040.
2015
Existence of three-dimensional ideal-magnetohydrodynamic equilibria with current sheets
Physics of Plasmas. 2015. Vol. 22, num. 9, p. 090704.
DOI : 10.1063/1.4931094.
Magnetic islands and singular currents at rational surfaces in three-dimensional magnetohydrodynamic equilibria
Physics of Plasmas. 2015. Vol. 22, num. 2, p. 022501.
DOI : 10.1063/1.4906888.
Plasma turbulence, suprathermal ion dynamics and code validation on the basic plasma physics device TORPEX
Journal Of Plasma Physics. 2015. Vol. 81.
DOI : 10.1017/S0022377815000161.
Approaching the investigation of plasma turbulence through a rigorous verification and validation procedure: A practical examplea)
Physics of Plasmas. 2015. Vol. 22, num. 5, p. 055704.
DOI : 10.1063/1.4919276.
Numerical approach to the parallel gradient operator in tokamak scrape-off layer turbulence simulations and application to the GBS code
Computer Physics Communications. 2015. Vol. 188, p. 21-32.
DOI : 10.1016/j.cpc.2014.10.020.
Finite ion temperature effects on scrape-off layer turbulence
Physics of Plasmas. 2015. Vol. 22, num. 1, p. 012308.
DOI : 10.1063/1.4904300.
2014
Effect of the limiter position on the scrape-off layer width, radial electric field and intrinsic flows
Nuclear Fusion. 2014. Vol. 54, num. 8, p. 083033.
DOI : 10.1088/0029-5515/54/8/083033.
Intrinsic toroidal rotation in the scrape-off layer of tokamaks
Physics of Plasmas. 2014. Vol. 21, num. 6, p. 062309.
DOI : 10.1063/1.4883498.
Verification methodology for plasma simulations and application to a scrape-off layer turbulence code
Physics of Plasmas. 2014. Vol. 21, num. 6, p. 062301.
DOI : 10.1063/1.4879778.
Pre-sheath density drop induced by ion-neutral friction along plasma blobs and implications for blob velocities
Physics Of Plasmas. 2014. Vol. 21, p. 012305.
DOI : 10.1063/1.4862778.
Theory of the scrape-off layer width in inner-wall limited tokamak plasmas
Nuclear Fusion -Original Edition-. 2014. Vol. 54, num. 4, p. 043003.
DOI : 10.1088/0029-5515/54/4/043003.
Three-dimensional simulations of blob dynamics in a simple magnetized torus
Physics of Plasmas. 2014. Vol. 21, num. 2, p. 022305.
DOI : 10.1063/1.4864324.
Aspect ratio effects on limited scrape-off layer plasma turbulence
Physics of Plasmas. 2014. Vol. 21, num. 2, p. 022303.
DOI : 10.1063/1.4863956.
2013
Theory-based scaling of the SOL width in circular limited tokamak plasmas
Nuclear Fusion. 2013. Vol. 53, num. 12, p. 122001.
DOI : 10.1088/0029-5515/53/12/122001.
On the electrostatic potential in the scrape-off layer of magnetic confinement devices
Plasma Physics and Controlled Fusion. 2013. Vol. 55, num. 12, p. 124019.
DOI : 10.1088/0741-3335/55/12/124019.
Turbulent regimes in the tokamak scrape-off layer
Physics of Plasmas. 2013. Vol. 20, num. 9, p. 092308.
DOI : 10.1063/1.4821597.
Basic investigations of electrostatic turbulence and its interaction with plasma and suprathermal ions in a simple magnetized toroidal plasma
Nuclear Fusion. 2013. Vol. 53, num. 6, p. 063013.
DOI : 10.1088/0029-5515/53/6/063013.
Ideal ballooning modes in the tokamak scrape-off layer
Physics of Plasmas. 2013. Vol. 20, num. 5, p. 052306.
DOI : 10.1063/1.4807333.
2012
Boundary conditions for plasma fluid models at the magnetic presheath entrance
Physics of Plasmas. 2012. Vol. 19, num. 12, p. 122307.
DOI : 10.1063/1.4771573.
Simulation of plasma turbulence in scrape-off layer conditions: the GBS code, simulation results and code validation
Plasma Physics and Controlled Fusion. 2012. Vol. 54, num. 12, p. 124047.
DOI : 10.1088/0741-3335/54/12/124047.
Potential of a plasma bound between two biased walls
Physics of Plasmas. 2012. Vol. 19, num. 8, p. 083507.
DOI : 10.1063/1.4745863.
Properties of convective cells generated in magnetized toroidal plasmas
Physics of Plasmas. 2012. Vol. 19, num. 8, p. 082304.
DOI : 10.1063/1.4740056.
Convective cells and blob control in a simple magnetized plasma
Physical Review Letters. 2012. Vol. 108, num. 6, p. 065005.
DOI : 10.1103/PhysRevLett.108.065005.
2011
Methodology for turbulence code validation: Quantification of simulation-experiment agreement and application to the TORPEX experiment
Physics of Plasmas. 2011. Vol. 18, num. 3, p. 032109.
DOI : 10.1063/1.3559436.
Existence of subsonic plasma sheaths
Physical Review E. 2011. Vol. 83, num. 1.
DOI : 10.1103/PhysRevE.83.016406.
2010
Electrostatic instabilities, turbulence and fast ion interactions in the TORPEX device
Plasma Physics and Controlled Fusion. 2010. Vol. 52, num. 124020.
DOI : 10.1088/0741-3335/52/12/124020.
Enseignement & Phd
Cours
Magnetic confinement
The course provides an overview of the fundamentals of magnetic confinement of plasmas for fusion. The different magnetic confinement configurations are presented, with a description of their operating regimes. The basic elements of particle and energy t... 