Use of electron linear accelerators in medical radiation therapy: physical characteristics. Overview report No. 1

This report presents an overview of the physical characteristics of electron linear accelerators used in medical radiation therapy. Particular attention is given to those physical characteristics and performance parameters that are related to delivery of a useful, properly controlled prescription dose of radiation to the patient or to delivery of a potentially harmful dose of radiation to the patient, machine operators, or others in the vicinity of the accelerator. The purpose of the study, of which this report is a part, was to provide a data base which will assist the Bureau of Radiological Health in evaluating the need for a performance standard for medical linear accelerators and the priority which should be assigned to such a standard should one be required