International Commission on Radiation Units and Measurements

The ICRU endeavors to collect and evaluate the latest data and information pertinent to the problems of radiation measurement and dosimetry and to recommend the most acceptable numerical values for physical reference data and techniques for current use. The Commission’s recommendations are kept under continual review in order to keep abreast of the rapidly expanding uses of radiation. The ICRU feels that it is the responsibility of national organizations to introduce their own detailed technical procedures for the development and maintenance of standards. However, it urges that all countries adhere as closely as possible to the internationally recommended basic concepts of radiation quantities and units. The Commission maintains and develops a system of quantities and units and concepts (e.g., for radiation therapy) and guidance for measurement procedures and techniques having the widest possible range of applicability. Situations can arise from time to time for which an expedient solution of a current problem is required. ICRU invites and welcomes constructive comments and suggestions regarding its recommendations and reports. These may be transmitted to the Chairman.