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Cancer Treatment Centers of America

Amarjit Sen, PhD, DABR

Chief Medical Physicist & Radiation Safety Officer

CTCA Tulsa

"The team approach to cancer care provided at Cancer Treatment Centers of America is exceptional. Our radiation therapy team is a shining example of how well our clinicians work together."

- Amarjit Sen, PhD, DABR


  • PhD, Physics - University of Western Ontario, London, Ontario, Canada
  • MS, Physics - Memorial University of Newfoundland, St. John's, Newfoundland, Canada
  • MS, Physics - Sambalpur University, Sambalpur, Orissa, India
  • BS, Physics - Sambalpur University


  • Therapeutic Medical Physics - American Board of Radiology

Practicing since: 1985

For more than a decade, Dr. Amarjit Sen has worked alongside our radiation oncologists, dosimetrists, nurses and radiation therapists to coordinate our patients’ radiation therapy with the utmost thoroughness and precision.

"It's very much a team effort. The radiation oncologist looks at the clinical side—diagnosing the disease and determining what he or she wants to treat the cancer with," says Dr. Sen. "Then, physicists and dosimetrists are involved in the planning and delivery of the radiation therapy."

Dr. Sen worked closely with Dr. Frederick Brunk to bring TheraSphere®, a unique treatment for inoperable liver cancer, to Cancer Treatment Centers of America® (CTCA). He also has developed and led a comprehensive quality assurance program for the hospital’s Radiation Oncology Department.

Dr. Sen obtained a PhD in physics from the University of Western Ontario. He completed two master’s of science degrees in physics: one at Sambalpur University in India (where he also received a bachelor’s of science degree) and the other at Memorial University of Newfoundland in Canada.

The board-certified medical physicist has worked in three realms of physics: the medical profession, academics and research. Before he joined the staff at CTCA® in Tulsa, Dr. Sen served as a medical physicist at Exton Cancer Center in Pennsylvania and at two regional oncology centers in Ohio. For five years, he taught physics as an assistant professor at The University of Toledo. He later achieved status as a medical physicist fellow at The University of Toledo College of Medicine (formerly the Medical College of Ohio). After receiving his doctorate, Dr. Sen spent two years as a research associate at Argonne National Laboratory in Illinois.

Dr. Sen has had work on medical physics published in the Journal of Medical Physics and the International Journal of Radiation Oncology*Biology*Physics. He has also contributed to numerous abstracts and has been published extensively in various physics journals.

He is a member of the American Association of Physicists in Medicine, the American Society of Therapeutic Radiology and Oncology and the American Brachytherapy Society.

Patient ratings and comments

Star ratings and comments are only available for medical, radiation and gynecologic oncologists. Gynecologic surgical offerings are not included at this time due to a different survey tool required to evaluate these services. CTCA uses a validated Press Ganey® survey, which captures patient experience feedback for the primary oncology services of chemotherapy and radiation therapy. Following industry best practice, star ratings and comments are only published for physicians with a minimum of 30 completed patient surveys.

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