- American Association of Physicists in Medicine (AAPM)
- European Federation for Medical Physicists (EFOMP)
- Canadian Organization of Medical Physicists (COMP)
- Association of Medical Physicists of Russia (AMPR)
- International Organization for Medical Physicists (IOMP)
- American Society for Therapeutic Radiology and Oncology (ASTRO)
- European Society for Therapeutic Radiology and Oncology (ESTRO)
- Radiological Society of North America (RSNA)
- American Board of Radiology (ABR)
- American College of Radiology (ACR)
- Society of Nuclear Medicine (SNM)
- International Federation for Medical and Biological Engineering (IFMBE)
- International Commission on Radiation Units and Measurements (ICRU)
- International Commission on Radiological Protection (ICRP)
- Atomic Energy Agency (IAEA)