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Founding Team
We have what it takes to crack the ‘code’
Fritz DeJongh Ph.D CEO
Inventor of proton imaging technology
Co-founder and CEO of ProtonVDA (now Proton4D)
Principle investigator for SBIR grants from NCI
Ethan DeJongh CTO
R & D leader at ProtonVDA
Algorithm Development
Experiment Planning
Data Analysis
Victor Rykalin MS
Director of detector development
Co-founder of ProtonVDA
Previous experience leading proton CT projects at
LLU, FNAL and Northern Illinois University
Dr. Rahul Chaudhary COO
Medtech & Clinical Executive
Expert in Medical Diagnostics Technologies
Led global medical & commercial teams in
different segments & geographies
Clinical Advisors
Mark Pankuch, PhD
Director of Medical Physics and Dosimetry, Northwestern Medicine Chicago Proton Center
Assistant professor of radiation oncology, Northwestern University Feinberg school of medicine
James Welsh, MD
