Our Team


Screen Shot 2014-02-04 at 9.34.20 AM
Sani Nassif, PhD

Dr. Nassif received his Ph.D. in Electrical Engineering from Carnegie Mellon University in 1985. He has 28 years of R&D experience at Bell Labs, and IBM Research. He was a member of IBM Academy, an IEEE Fellow, and an IBM Master Inventor (75 patents). He has spent the past three years working the area of proton therapy simulation and treatment plan optimization, and is a world-renowned expert on simulation, optimization, and statistics.

Screen Shot 2014-02-04 at 9.42.45 AM
Evan Speight, PhD

Dr. Speight received his B.S. from Stanford University and his Master’s and Ph.D. in Electrical and Computer Engineering from Rice University. After completing a post-doc in high performance computing, he served on the faculty at Cornell University before moving to IBM Research. He has been involved with research into improving the speed and accurate of proton dose calculation and treatment optimization for the past two years before co-founding Radyalis. Dr. Speight is a senior member of the IEEE and the ACM, and he was an IBM Master Inventor with 40 patents. He is an expert in the areas of high performance and distributed computing, computer architecture, and software development, and has over 50 publications in peer-reviewed journals and conferences.

David LaPotin, PhD
CFO, VP Business Development

Dr. LaPotin received his Ph.D. in Electrical Engineering from Carnegie Mellon University in 1985. He has 31 years of R&D and management experience at GTE Labs and IBM Research across computer-aided design, packaging, systems, verification, and software. He holds 6 US patents and was a member of the IBM Academy and a founding manager of the IBM Austin Research Laboratory. He has held numerous research and business positions including corporate venture capital, technology commercialization, growth initiatives, and business strategy.

Advisory Board:

Martin Bues scaled
Martin Bues, PhD

Dr. Martin Bues is a nationally and internationally recognized expert in the field of proton beam therapy. He transitioned into the field of Medical Physics after working in Mathematical Physics. He received his PhD in Physics from Harvard University in 1996. He first gained experience in proton beam therapy at Massachusetts General Hospital. At MD Anderson Cancer Center in Houston, Texas, he led the development effort for Proton Pencil Beam Scanning. These efforts led to the first clinical implementation of Proton Pencil Beam Scanning in the United States. Dr. Bues is currently the Lead Proton Physicist at Mayo Clinic in Arizona.

Jonathan B. Farr, PhD, DSc

Innovating advanced particle therapy systems and their application to patient care are the definitive aspects of Dr. Farr’s work. Coming from a background in physics and fast-neutron therapy, he transitioned into proton therapy at Indiana University where he led the clinical team in establishing continuous uniform proton beam scanning treatments that are widely used in the field today. He gained international experience as the chief medical physicist at the Westdeutsches Protonentherapiezentrum in Essen, Germany, where the developments included modulated beam scanning and integrating multi-modality imaging into particle therapy such as PET, CT, and MR, with the goal of improving therapy through a better understanding of dynamic patient and treatment processes. Dr. Farr joined St. Jude Children’s Research Hospital in 2012 as the Chief of Radiation Physics, with focus on preparing the institution for the inception of pediatric proton therapy prospective trials in their new proton therapy center. Dr. Farr is currently Senior Vice President of Medical Physics at Advanced Oncotherapy Plc.

Hanne Kooy, PhD

After doctoral studies in experimental High Energy Physics, an opportunity in Medical Physics at the University of Rochester started a career in radiation therapy. Radiation therapy, different from other medical disciplines, requires active participation of physicists in the direct clinical care of patients. As such, it has been an effective vessel for introducing engineering technologies. One such technology is proton beam radiation which has become an almost singular focus of Dr. Kooy’s career. Radiation therapy, as all medical disciplines, has also become fully reliant on information technology. Dr. Kooy’s interests lie in the effectively deployment of the appropriate, advanced and integrated technologies to support proton radiation therapy.

Zuofeng Li, DSc

Dr. Li is responsible for the day-to-day technical operations of the UF Health Proton Therapy Institute. He is experienced in the research and clinical practices of advanced radiotherapy treatment planning and delivery techniques, Monte Carlo-based dose calculation methods, with over 100 publications. He is a Professor at the University of Florida College of Medicine, Department of Radiation Oncology. Dr. Li is a Fellow of the American Association of Physicists in Medicine.

BN BW 140923
Bernt Nordin, MBA

Bernt has 30 years of experience in commercially introducing new medical technologies for improved precision in radiotherapy. Stereotactic neurosurgery, image-guided surgery, stereotactic radiosurgery, 3D treatment planning, IMRT, proton therapy and light ions therapy are technologies he has introduced to world markets. He currently serves as chairman of Lioness Therapeutics AB in Sweden and interim VP of Lioness Light Ions. Bernt’s degree is from the Stockholm School of Economics.