The present invention relates to methods and systems for use of an electron beam system. The electron beam system may be used within a treatment center with very little radiation shielding. The electron beam system may be used in conjunction with low-z moderators that reduce the energy level of the electron beam without the need for complex or expensive energy control systems. The electron beam system may be used to treat skin cancer and dermatological patients in non-traditional treatment facilities, as well as invasive cancers, either in an unshielded operating room to deliver intraoperative radiation therapy (“IORT”) or in an unshielded room in the oncology department to deliver electron beam radiation treatment (“EB-RT”).
