AAPM homepage with a link to the journal "Medical Physics". Resources in Medical Physics.

The CRPA is a professional society that supports the development and implementation of radiation safety programs in all areas of industry, medicine, research and the environment.

The EFOMP represents more than 5000 physicists and engineers in the field of Medical Physics.

Professional organization dedicated to development, dissemination, and application of both the scientific knowledge of, and the practical means for, radiation protection.

ICNIRP is an independent scientific organization, whose aims are to provide guidance and advice on the health hazards of non-ionizing radiation exposure. Provides information on publications, activities and links.

For people engaged in radiation protection activities in all parts of the world. Website includes organization information, and professional training materials on a wide range of topics in radiological protection and nuclear medicine.

SAAPMB is an association comprised of individuals and societies interested in the interaction of radiation with the human body and related physical phenomena. Provides news and resources.