Particle Therapy Co-Operative Group, North America

3rd Annual Conference

Advancing Particle Therapy:

Challenge and Innovation in Adult and Pediatric Oncology


Planning Committee

Jonathan B. Farr, PhD, DSc
Chief, Radiation Physics
Department of Radiation Oncology
St. Jude Children’s Research Hospital
Memphis, TN

Hesham E. Gayar, MD
Department of Radiation Oncology
Karmanos Cancer Institute
Flint, MI

William F. Hartsell, MD
Medical Director
Northwestern Medicine Chicago Proton Center
Warrenville, IL

Eugen B. Hug, MD
Medical Director
Procure Proton Therapy Center
Somerset, NJ

Anita Mahajan, MD
Professor, Department of Radiation Oncology
The University of Texas MD Anderson Center
Houston, TX

Carl Rossi, Jr., MD
Medical Director
Scripps Proton Therapy Center
San Diego, CA

Conference Host

  • Jonathan Farr, PhD

    Jonathan Farr, PhD


    Associate Member, St. Jude Faculty

    • Chief, Radiation Physics

    Dr. Jonathan Farr earned his doctor of philosophy degree in Medical Physics from Wayne State University, School of Medicine in 2003. Subsequently in 2012 he earned his doctor of science degree in Experimental Radiation Therapy from the Duisburg-Essen School of Medicine, Germany.

    Dr. Farr has been a medical physicist since 2003, and has served as the Chief Medical Physicist at the Indiana University Health Proton Therapy Center, and at the West German Proton Therapy Center in Essen. Dr. Farr joined St. Jude in 2012 as the Chief of Radiation Physics.

    Dr. Farr’s research interests are connected to the technological systems he has assisted in developing. Physical and radiation measurement characterization of advanced proton treatment systems forms the primary area of his investigations. A second important focus continues to be clinical treatment planning, delivery and new methods of localization, verification and adaptive therapy. Today this includes incorporating multi-modality imaging such as PET, CT and MR with the goal of improving therapy through a better understanding of dynamic patient and treatment processes.

More information about Proton Therapy at St. Jude