Robert Hager

  • phone: 609-243-3305
  • email: rhager@pppl.gov

Dr. Robert Hager is a staff research physicist and member of the US SciDAC Center for Edge Physics Simulation (EPSI) headed by Choong-Seock Chang. He is the main author of the global, gyrokinetic-neoclassical particle-in-cell code XGCa and contributor to the gyrokinetic turbulence code XGC1. His main research interests are turbulent self-organization and transport in the edge of tokamak fusion plasmas, kinetic effects of 3D magnetic fields, kinetic-kinetic multi-scale coupling of neoclassical and turbulence codes for accelerated time advancement, and related extreme-scale high-performance computing issues. Besides his research activities, Robert Hager is responsible for training and support of users of the codes XGC0 and XGCa.

Before joining the Princeton Plasma Physics Laboratory in 2012, Robert Hager obtained a diploma in solid state physics from the University of Augsburg, Germany, in 2007 and a PhD in plasma physics from the Technical University Munich, Germany, and the Max-Planck-Institute for Plasma Physics, in 2011. After graduation, he was a postdoctoral fellow at the Max-Planck-Institute for Plasma Physics in Garching, Germany, from 2011-2012. During his time at the University of Augsburg, he was a fellow of the German National Academic Foundation. For his PhD thesis on geodesic acoustic modes, he was awarded the Otto-Hahn-Medal of the Max-Planck-Society.

  • "Poloidal asymmetries in edge transport barriers"
    R.M. Churchill, C. Theiler et al., Phys. Plasmas 22, 056104 (2015)
  • "Gyrokinetic neoclassical study of the bootstrap current in the tokamak edge pedestal with fully non-linear Coulomb collisions"
    Robert Hager & C.S. Chang, Phys. Plasmas 23, 042503 (2016)
  • "A fully non-linear multi-species Fokker-Planck-Landau collision operator for simulation of fusion plasma"
    Robert Hager, E.S. Yoon et al., J. Comp. Phys. 315, 644 (2016)
  • DOE highlight, 2016 : An accurate and scalable nonlinear multi-species Fokker-Planck operator solver