Photo of Rami A. Kishek Rami A. Kishek

Research Professor

Institute for Research in Electronics & Applied Physics

Electrical & Computer Engineering
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ramiak_at_umd.edu
Ph.: (301) 405-5012
FAX: (301) 314-9437

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Rami A. Kishek, Research Professor
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Rami A. Kishek is a Research Professor at the Institute for Research in Electronics & Applied Physics at the University of Maryland (UMD), where he leads the effort on the University of Maryland Electron Ring (UMER) Facility, a small research accelerator investigating space charge dynamics. He received his Ph.D. (1997) and M.S.E. (1995) in Nuclear Engineering, and B.S.E. (1993) in Electrical Engineering, all from the University of Michigan, Ann Arbor. Photograph of UMER
Photograph of UMER

Professor Kishek has over 20 years of experience in charged particle dynamics and is an expert on space charge effects, computation, and multipactor, where he has made groundbreaking contributions to its theoretical modeling. He has published over 200 scientific papers, delivered dozens of invited talks, and has over 1750 citations to his work. Kishek is a scientific consultant for multiple companies and has chaired several workshops, most recently the 4th Workshop on the Microbunching Instability in FELs, held at UMD in April 2012. He has advised or co-advised 15 graduate students and guided the research of dozens more graduate, undergraduate, and high school students, and regularly teaches both at UMD and at the US Particle Accelerator School (USPAS). Kishek is a Fellow of the American Physics Society, a Senior Member of IEEE, and 2015 recipient of the USPAS Prize for Achievement in Accelerator Physics and Technology .
   
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Photo comparing 5-beamlet experiment with simulation
The partial merger of five beamlets in configuration space and x-x' phase space: (right) simulation with WARP, 2002; (left) experimental measurement and tomographic phase-space reconstruction, 2007.
Primary Interest
Apply advanced math and computational techniques to address high-importance problems in accelerator science, particularly, the generation and preservation of high-quality beams.
Research Areas
  • Computation
  • Nonlinear accelerator optics
  • Multipactor breakdown, both for accelerators and for space mission assurance
  • Nonlinear dynamics
  • Space charge in beams
  • Advanced beam diagnostics
  • Beam halo
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Professor Kishek has authored over 200 publications on myriad topics. For a full list of linked publications, visit the publications page.
 
K.J. Ruisard, I. Haber, R.A. Kishek, and T. Koeth, "Nonlinear Optics at the University of Maryland Electron Ring," Proceedings of 16th Workshop on Advanced Accelerator Concepts (AAC), San Jose, CA, July 2014.

Invited: R.A. Kishek, "Ping-Pong Modes and Higher-Periodicity Multipactor," Physics of Plasmas 20, 056702 (2013).

Y.C. Mo, R.A. Kishek, D. Feldman, I. Haber, B. Beaudoin, P.G. O'Shea, and J.C.T. Thangaraj, "Experimental Observations of Soliton Wave Trains in Electron Beams," Physical Review Letters 110, 084802 (2013).

B. Beaudoin and R.A. Kishek, "Tune Variation and Transverse Displacement as a Diagnostic for Profiling Beam Energy," Physical Review Special Topics - Accelerators & Beams 16, 114201 (2013).

R.A. Kishek, "Ping-Pong Modes: A New Form of Multipactor," Physical Review Letters 108, 035003 (2012).

H.D. Zhang, R.B. Fiorito, A.G. Shkvarunets, R.A. Kishek, and C.P. Welsch, "Beam Halo Imaging with a Digital Optical Mask," Physical Review Special Topics - Accelerators & Beams 15, 072803 (2012).

B. Beaudoin, I. Haber, R.A. Kishek, S. Bernal, T. Koeth, D. Sutter, P.G. O'Shea, and M. Reiser, "Longitudinal Confinement and Matching of an Intense Electron Beam," Physics of Plasmas 18, 013104 (2011).

Invited: D. Stratakis, R.A. Kishek, S. Bernal, R.B. Fiorito, I. Haber, M. Reiser, P.G. O'Shea, K. Tian, and J.C.T. Thangaraj, "Generalized Phase-Space Tomography for Intense Beams," Physics of Plasmas 17, 056701 (2010).

David K. Abe, Rami Kishek, John J. Petillo, David P. Chernin, and Baruch Levush, "Periodic Permanent-Magnet Quadrupole Focusing Lattices for Linear Electron-Beam Amplifier Applications," IEEE Transactions on Electron Devices 56(5), 965-973 (2009).

Invited: K. Tian, R.A. Kishek, P.G. O'Shea, R.B. Fiorito, D.W. Feldman, and M. Reiser, "Time-Dependent Imaging of Space-Charge-Dominated Electron Beams," Physics of Plasmas 15, 056707 (2008).

R.A. Kishek, P.G. O'Shea, S. Bernal, I. Haber, J. Harris, Y. Huo, H. Li, and M. Reiser, "The University of Maryland Electron Ring: A Platform for Study of Galactic Dynamics on a Laboratory Scale," Annals of the New York Academy of Sciences 1045, 45-54 (2005).

R.A. Kishek, P.G. O'Shea, and M. Reiser, "Energy Transfer in non-Equilibrium Space-Charge-Dominated Beams," Physical Review Letters 85(21), 4514 (2000).

S. Bernal, R.A. Kishek, M. Reiser, and I. Haber, "Observation and Simulation of Radial Density Oscillations in Space-Charge Dominated Electron Beams," Physical Review Letters 82, 4002 (1999).

Invited: R.A. Kishek, Y.Y. Lau, L.K. Ang, A. Valfells, and R.M. Gilgenbach, "Multipactor Discharge on Metals and Dielectrics: Historical Review and Recent Theories," Physics of Plasmas 5(5), 2120 (1998).

R.A. Kishek and Y.Y. Lau, "Multipactor Discharge on a Dielectric," Physical Review Letters 80(1), 193 (1998).
 
Chaotic mixing photo
Particle-in-cell simulation of the merger of 5 beamlets showing phase mixing by chaotic particle orbits. Colored particles start from the same localized spot in phase space but exponentially diverge in a few plasma periods.
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Spring 2017: ENEE686
Charged Particle Dynamics: COMING SOON, revised, with an emphasis on nonlinear phenomena in beams
Fall 2011: ENEE 686
Charged Particle Dynamics
Fall 2009: ENEE 686
Charged Particle Dynamics
Summer 2008: US Particle Accelerator School
Beam Dynamics Experiments on the University of Maryland Electron Ring
Spring 2007: ENEE 686
Charged Particle Dynamics
Summer 2006: US Particle Accelerator School
Beam Physics with Intense Space Charge
Spring 2006: HONR 219L
Working with Computers to Solve Real-World Problems:
Science and the Computer Revolution
Fall 2004: HONR 219L
Working with Computers to Solve Real-World Problems:
Science and the Computer Revolution
Spring 2003: ENEE 686
Charged Particle Dynamics
Spring 2001: HONR 219L
Counting Faster: Science and the Computer Revolution
Student Evaluations:

"The teacher is awesome and I recommend this class to anyone!"

"Your presentations have shown your dedication to prepare for every class."


Diffusion-Limited Aggregation
Output from HONR219L project on diffusion-limited aggregation process.
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index.html / © 2004-2016, contact Rami A. Kishek at ramiak_at_umd.edu / Last Revised Friday, Jul 22, 2016