Pennsylvania Code
Title 25 - ENVIRONMENTAL PROTECTION
Part I - Department of Environmental Protection
Subpart D - Environmental Health and Safety
Article V - Radiological Health
Chapter 228 - RADIATION SAFETY REQUIREMENTS FOR PARTICLE ACCELERATORS
RADIATION SAFETY REQUIREMENTS FOR ACCELERATORS USED IN THE HEALING ARTS
Section 228.72 - Selection of radiation type
Current through Register Vol. 54, No. 44, November 2, 2024
Equipment capable of X-ray therapy or electron therapy, or both, must meet all of the following additional requirements:
(1) Irradiation may not be possible until a selection of radiation type and appropriate energy has been made and displayed at the control panel.
(2) An interlock system shall be provided to insure that the equipment can emit only the radiation type which has been selected.
(3) An interlock system shall be provided to prevent irradiation if selected operations carried out in the treatment room do not agree with the selected operations carried out at the control panel.
(4) An interlock system shall be provided to prevent:
(5) For new equipment, a system shall be provided to terminate irradiation if the energy of the electrons striking either the X-ray target or electron window deviates by more than +20% or 3 MeV, whichever is smaller, from the selected nominal energy.
