About ICRU

The ICRU (originally known as the International X-Ray Unit Committee and later as the International Committee on Radiological Units) was conceived at the First International Congress of Radiology (ICR) in London in 1925 and officially came into being at ICR-2 in Stockholm in 1928. The primary objective was to propose an internationally agreed upon unit for measurement of radiation as applied to medicine. From 1950 the ICRU expanded its role significantly to embrace a wider field. Initially meetings were held every 3 years at ICR congresses (excluding the 13-year period that encompassed World War II) with every participating country having the right of attendance (one physicist and one radiologist from each).   The Chairs of these initial ICRU meetings were nominated by the ICR host country. Continuity was provided by L S Taylor (USA) who served as a member [1928 - 1934], Secretary [1934 - 1953], first permanent Chair [1953 - 1969] and then Honorary Chair [1969 until his death in 2004]. Subsequent ICRU Chairs have been:  H  O  Wyckoff  (USA)  [1969  -  1987];  A  Allisy  (France)  [1987 - 1994]; and  A Wambersie (Belgium)  [1994 - 2006]. The current Chair, P M DeLuca, Jr (USA), has been in office since 2006.