Principal investigator

Ph.D., Medical Physics: University of Wisconsin-Madison, Madison, WI (2004)
Biography
Tiezhi Zhang, PhD, is a professor of radiation oncology at the Radiation Oncology department, also affiliated facility of Biomedical Engineering and Electrical Engineering departments. Dr. Zhang earned a PhD in Medical Physics from University of Wisconsin 2004. He joined the Washington University faculty in 2014. He is certified in Therapeutic Radiological Physics by the American Board of Radiology.
Research
Dr. Zhang is developing novel X-ray imaging technologies for image-guided radiotherapy. His lab is developing high brightness multi-pixel thermionic emission X-ray (MPTEX) sources, as well as a novel Tetrahedral beam CT (TBCT) using the MPTEX source. TBCT is a compact volumetric CT system that is immune to the problems of current cone beam CT system by using a new scanning geometry. It can produce high-quality CT images for image-guided radiotherapy and intervention.
Publications
Full list
Lab members

Jonathan Haefner, PhD
Post Doctoral Researcher
Ph.D. Physics, Harvard University, (2022)
B.S. Physics, The University of Michigan, Ann Arbor, (2016)
Research Topics
Proton treatment plan optimization, TBCT imaging, multi-pixel x-ray source imaging, small animal FLASH-RT irridator (SAFI).

Shuang Zhou, BS
Graduate Student
Ph.D. in Imaging Science Candidate
B.S. Electrical Engineering, Lanzhou University
Research Interest
Image reconstruction, machine-learning, proton radiography, proton QA device.
Past lab members

Graduate Student
Physics Department, Washington University
Postdoc, Columbia University

Qinghao Chen, PhD
Post-Doctoral Researcher
Ph.D. Nuclear Science and Technology, Tsinghua University, China
B.S. Engineering Physics, Tsinghua University, China
Research Interest: TBCT imaging, IMPT optimization algorithm, Monte Carlo Simulation.
Current position: Medical Physics Resident, Washington

Praneeth Kandlakunta, PhD
Post-doctoral Researcher
Ph.D., Nuclear Engineering, Ohio Sate University (2014)
M.S., Nuclear Engineering (2012)
BE, Electronics and Instrumentation Engineering (2008)
Research Interests: Developing MPTEX source, TBCT and Linac Monte Carlo Simulation
Current Position: Senior engineer, Ohio State University.

Xiaochao Xu
Post-doctoral Researcher
CT detector Scientist
Toshiba Medical Research Institute
Chicago, IL

Yuewen Tan, PhD
Graduate Student
Postdoc, Columbia University

Joshua Kim, PhD
Graduate Student
Oakland University, 2013, (Senior Physicist, Henry Ford Health System, Detroit, MI)

Joshua Olick-Gibson, BS
Undergraduate Student
Biomedical Engineering, Washington University, (Ph.D. Candidate, Caltech).