The Radiotherapy Bunker Shielding Calculator supports the preliminary assessment of shielding requirements for radiotherapy facilities. It assists medical physicists and facility planners in evaluating barrier thicknesses using relevant equipment specifications, design dose limits, shielding materials, and room layout.
Calculations must be reviewed against applicable shielding guidance and local regulatory requirements. Final shielding designs require verification and approval by a qualified medical physicist.
Using this calculator
1. Select the treatment equipment, radiation type, and beam energy supported by the calculator.
2. Enter the clinical workload and confirm the required units.
3. Specify the design dose limits, use factors, and occupancy factors for adjacent areas.
4. Enter the relevant distances and shielding material properties.
5. Review all inputs before calculating the estimated shielding requirements.
6. Have the results independently verified before using them for facility design or construction.
Important: The calculator supports shielding assessment; it does not replace a comprehensive shielding design. Features such as doors, mazes, penetrations, and neutron shielding require separate assessment where applicable. A radiation protection survey must confirm shielding adequacy before clinical operation.
Version 1.0