PPPL

Ralph Kube

Ralph Kube joined the Princeton Plasma Physics Laboratory as a research physicist in 2019 and is a member of the US SciDAC Center for High-Fidelity Boundary Plasma Simulations (HBPS), led by Principal Investigator Choong-Seock Chang. His research interest lies in understanding the edge and scrape-off layer regions of magnetically confined plasmas. Ralph's current work includes applying machine learning methods to accelerate the full-f gyrokinetic particle-in-cell code XGC1. He also develops novel workflow tools tailored to automatically analyze big and fast data streams produced by fusion experiments and high-fidelity numerical simulations.

Ralph graduated with a B.Sc. in Physics from RWTH Aachen University in 2004. He received a M.Sc. and a PhD in Plasma Physics from UiT The Arctic University of Norway. After that he worked as a postdoctoral research fellow at the University of Innsbruck in Austria and at UiT in Norway where he investigated the statistical properties of intermittent fluctuations observed in scrape-off layer plasmas.

Papers
  • "Outlier classification using autoencoders: Application for fluctuation driven flows in fusion plasmas"
    R. Kube, F. M. Bianchi et al., Rev. Sci. Instrum. 90, 013505 (2019)
  • "Statistical properties of the plasma fluctuations and turbulent cross-field fluxes in the outboard mid-plane scrape-off layer of Alcator C-Mod"
    R.Kube O. E. Garcia et al., Nucl. Mat. Energy 18, 193 (2019)
  • "Amplitude and size scaling for interchange motions of plasma filaments"
    R. Kube, O. E. Garcia & M. Wiesenberger, Phys. Plasmas 23, 122302 (2016)