National Superconducting
Cyclotron Laboratory

Jie Wei
Jie Wei
Professor of Physics, FRIB Accelerator Systems Division Director
Accelerator Physics
Ph. D Physics, Stony Brook University, 1989
Joined NSCL in August 2010
Phone 517-908-7731
Office 2305
wei at

Jie Wei

I started my career pursuing a PhD in accelerator physics at Stony Brook University. My research topics were performance limiting beam-dynamics mechanisms with the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL). During the next 30 years, my research has been on accelerator physics and engineering pertaining to frontier accelerator facilities including RHIC at BNL, the U.S. part of the Large Hadron Collider at CERN, the Spallation Neutron Source at Oak Ridge National Laboratory in collaboration with Lawrence Berkeley, Los Alamos, Thomas Jefferson, Brookhaven, and Argonne National Laboratories, the China Spallation Neutron Source project, and the Compact Pulsed Hadron Source in China, and now the Facility for Rare Isotope Beams at MSU. The accelerator profession is so uniquely rewarding in that a physical idea can be turned into reality through the execution of a construction project. Throughout its completion one experiences endless learning in physics, technology, teamwork, and creating friendships.

I serve as the FRIB Accelerator Systems Division Director responsible for the design, R&D, construction, commissioning, and operations of the accelerator complex. my team includes accelerator faculties and staff of subject matter experts, many from major national laboratories and institutes worldwide. The accelerators for the Facility of Rare Isotope Beams (FRIB) facility are among the most powerful and technically demanding hadron accelerators in the world. The design and development of the FRIB driver accelerator requires the most advanced knowledge in accelerator physics and engineering involving beam dynamics with electron-cyclotron-resonance (ECR) ion sources, radio-frequency quadrupole (RFQ) linac, superconducting RF linac; space charge and beam halo; charge stripping mechanisms based on solid film, liquid film, and gases; mechanisms of beam loss, collimation, and collection; mechanisms of vibration, microphonics, and compensation; and mechanisms of gas dissorption, electron cloud, and mitigations.

My scientific research involves accelerator physics of high-energy colliders and high-intensity hadron accelerators; beam cooling and crystallization; development of spallation neutron sources; development of compact pulsed hadron sources; development of hadron therapy facilities; development of accelerator driven sub-critical reactor programs for thorium energy utilization and nuclear waste transmutation; and development of accelerators for rare isotope beams. Our team covers accelerator research and engineering fields of superconducting material and technology; low-temperature cryogenics; permanent and electromagnetic magnets and power supplies; radio-frequency vacuum; beam diagnostics instrumentation and electronics; accelerator controls and machine protection; and beam collimation and shielding. Design, R&D, construction, commissioning, and upgrade of the FRIB accelerator complex involve fascinating and challenging works across multiple disciplines at Michigan State University and in collaboration with major accelerator institutes and laboratories in United States and throughout the world.

Selected Publications

FRIB accelerator status and challenges, J. Wei, et al, Proc. Linac Conference, Tel Aviv (2012), pp. 417

Synchrotrons and accumulators for high-intensity proton beams, J. Wei, Reviews of Modern Physics, 75, 1383 (2003)

The low-energy state of circulating stored ion beam: crystalline beams, J. Wei, X-P. Li, A. M. Sessler, Physical Review Letters, 73, 3089 (1994)

Necessary Conditions for Attaining a Crystalline Beam, J. Wei, H. Okamoto, A.M. Sessler, Physical Review Letters, 80, 2606 (1998)

Theorem on magnet fringe field, J. Wei, R. Talman, Particle Accelerators, 55, 339 (1996)

Low-loss design for the high-intensity accumulator ring of the Spallation Neutron Source, J. Wei, et al, Physical Review ST-Accel. Beams, Vol. 3, 080101 (2000)