• Moses Chung (정모세)

  • Associate Professor
  • Intense Beam and Accelerator Physics
  • Current Research Interests

    Several large-scale accelerator facilities are operational or under construction in Korea, such as the Korea Multi-purpose Accelerator Complex (KOMAC) in Gyeongju, the Synchrotron Light Source (PLS-II) and the X-ray Free Electron Laser (PAL-XFEL) in Pohang, the Rare Isotope Science Project (RISP) in Daejeon, and the Korea Heavy Ion Medical Accelerator (KHIMA) in Gijang. By using advanced beam physics models and simulation tools, cutting-edge beam diagnostics, and sophisticated beam manipulation techniques, we aim to optimize and improve the performance of those accelerators. Furthermore, we will try to develop transformational technologies for the next-generation high-intensity accelerators such as the International Fusion Materials Irradiation Facility (IFMIF), Accelerator Driven System (ADS), and Heavy Ion Fusion (HIF). Applications of the accelerators to the medical areas and the laboratory astrophysics will also be actively pursued.


    Research Interest

    • Beam physics with intense self-fields and strong coupling
    • Advanced beam diagnostic development
    • Beam-driven wakefield generation and advanced accelerators
    • Plasma and beam physics using ion and electron traps
    • High-intensity accelerator R& D for future nuclear energy (IFMIF, ADS, and HIF)


    Research Groups at UNIST

    • Ion Traps / Beam Manipulations
    • Beam-Driven Wakefields / Advanced Accelerators
    • Beam Diagnostics / High-Intensity Accelerator Physics
  • Biographical Sketch


    • 2008: Ph. D. Plasma Physics, Princeton University
      – Advisor: Prof. Ronald C. Davidson
      – Thesis: “Studies of charged particle beam dynamics on the Paul trap simulator experiment pure ion plasma”
    • 1996: M. S. Nuclear Engineering (Nuclear Fusion Major), Seoul National University
    • 1994: B. S. Nuclear Engineering, Seoul National University


    • 2014~: Ulsan National Institute of Science and Technology (UNIST)
    • 2012~2014: Peoples Fellow / Associate Scientist, Accelerator Physics Center, Fermi National Accelerator Laboratory
    • 2010~2012: Assistant Professor, Handong Global University
    • 2008~2010: Postdoc, Accelerator Physics Center, Fermi National Accelerator Laboratory
    • 2001~2008: Research Assistant, Princeton Plasma Physics Laboratory


    • 2012: Peoples Fellowship, Fermi National Accelerator Laboratory
  • Selected Publications
    1. M. Chung, H. Qin, R. C. Davidson, L. Groening, and C. Xiao, “Generalized Kapchinskij-Vladimirskij Distribution and Beam Matrix for Phase-Space Manipulations of High-Intensity Beams”, Physical Review Letters 117, 224801 (2016).
    2. L. Groening, M. Maier, C. Xiao, L. Dahl, P. Gerhard, S. Mickat, H. Vormann, M. Vossberg, and M. Chung, “Experimental Proof of Adjustable Single-Knob Ion Beam EmittancePartitioning”, Physical Review Letters 113, 264802 (2014).
    3. S. G. Arutunian, A. E. Avetisyan, M. A. Davtyan, G. S. Harutyunyan, I. E. Vasiniuk, M. Chung, and V. Scarpine, “Large Aperture Vibrating Wire Monitor with Two Mechanically Coupled Wires for Beam Halo Measurements”, Physical Review Accelerators and Beams 17, 032802 (2014).
    4. M. Chung et al., “Pressurized H2 RF Cavities in Ionizing Beams and Magnetic Fields”, Physical Review Letters 111, 184802 (2013).
    5. H. Qin, R. C. Davidson, M. Chung, and J. W. Burby, “Generalized Courant-Snyder Theory for Charged Particle Dynamics in General Focusing Lattices”, Physical Review Letters 111, 104801 (2013).
    6. M. Chung, E. P. Gilson, R. C. Davidson, P. C. Efthimion, and R. Majeski, “Use of a Linear Paul Trap to Study Random-Noise Induced Beam Degradation in High-Intensity Accelerators”, Physical Review Letters 102, 145003 (2009).
    7. H. Qin, M. Chung, and R. C. Davidson, “Generalized Kapchinskij-Vladimirskij Distribution and Envelope Equation for High-Intensity Beams in a Coupled Transverse Focusing Lattice”, Physical Review Letters 103, 224802 (2009).
    8. M. Chung, E. P. Gilson, M. Dorf, R. C. Davidson, P. C. Efthimion, and R. Majeski, “Experiments on Transverse Compression of a Long Charge Bunch in a Linear Paul Trap”, Physical Review Accelerators and Beams 10, 064202 (2007).