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Junqi Xie

Assistant Physicist


Dr. Xie currently holds the position of Assistant Physicist in the Medium Energy Physics group in the Physics Division at Argonne National Laboratory. He conducts cross-disciplinary research in physics and materials science. He has worked on semiconductor detectors at Arizona State University and MCP-based detectors at Argonne National Laboratory over several years.  

Dr. Xie’s current research focuses on the application of novel photonsensors for particle identification methods based on Cherenkov techniques in various nuclear physics programs. His interests include Cherenkov detector design, simulation; photonsensor fabrication, characterization and their applications in nuclear physics, particle physics, medical imaging and national security.  

Dr. Xie has collaborated with groups at Jefferson Lab, Fermilab, Brookhaven National Laboratory, Lawrence Berkeley National Laboratory, Los Alamos National Laboratory and multiple universities, authored and co-authored over 60 papers with his colleagues.


  • B.S, Peking University, 2005 
  • Ph.D, Arizona State University, 2010 


  • 2014 - present Assistant Physicist at Argonne National Lab, Lemont, IL, USA 
  • 2010 - 2014 Postdoctoral Appointee at Argonne National Lab, Lemont, IL, USA