Head, Space Physics Division, Theory Department, PPPL
Principal Research Physicist, PPPL 


  • phone : 609-243-2603
  • email : jrj at
  • ph.D. in Physics, MIT, 1992
  • B.A. in Physics, University of Colorado, 1987
  • Princeton Plasma Physics Laboratory, 1995-Present
  • 2005-present, Head, Space Physics Division
  • 2005-present, Principal Research Physicist
  • Massachusetts Institute of Technology, Cambridge, MA, 1993-1995
  • Geophysical Institute at the University of Alaska, Fairbanks, AK, 1992-1993
  • Massachusetts Institute of Technology, Cambridge, MA, 1987-1992
Academic Services
  • Advised students (Sorin Zaharia, Luis Delgado, Andrew Burlingame, and Scott Keller) and postdocs (Eun-Hwa Kim, Peter Damiano, Peter Porazik) at Princeton Plasma Physics Laboratory (1999-present).
  • Served as co-organizer and lecturer of graduate student class AST-558 (special topics in space physics) at Princeton University.
  • Guest lecturer for graduate course 8.613J --- Introduction to Plasma Physics I at Massachusetts Institute of Technology, 1994

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