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)