Skip to main content

COVID-19 Advisory: If you have a fever or cold like symptoms, call us before visiting our clinics or emergency department. Only one primary caregiver may accompany a patient at all locations. No other visitors allowed. For more information visit our COVID-19 Resource Center.

Programs & Services

Radiation Oncology Program

What is proton beam therapy?

Proton beam therapy — also known as pencil beam therapy — is more beneficial than conventional radiation therapy for treating cancers. It delivers a precise, direct beam to the targeted area.

How does proton beam therapy work?

  • Each session lasts 30-45 minutes. 
  • The treatments take place at Mayo Clinic Arizona, 5881 E. Mayo Blvd., Phoenix, 85054. 
  • Proton beam therapy can treat even the most aggressive forms of cancers, like brain tumors, as well as sarcomas (malignant tumors).
  • Proton beam therapy provides the lowest effective dose of radiation. This results in fewer side effects and a reduced chance of radiation-induced secondary cancers.
  • In order to know if proton beam therapy is right for a patient, they must first consult with their Phoenix Children's oncologist. If a patient meets the requirements for treatment, one of our care coordinators will coordinate their treatment with Mayo Clinic directly. 
Share this page