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Task Group 79
The Use of Effective Dose as a Risk Related Radiological Protection Quantity

The Task Group on Effective Dose will produce a report to provide guidance on when the quantity ‘effective dose’ can be used and when it should not. Experience has shown that ‘effective dose’, which has been defined and introduced by ICRP for risk management purposes, i.e. for risk limitation and optimization, is widely used in radiological protection and related fields beyond its original purpose, incorrectly in some cases. Useful guidance on restrictions on the use of the quantity is provided by Committee 2 in annex B to the main recommendations. This guidance needs to be further expanded, and proposals made for the control of exposures and risk management in situations where ‘effective dose’ should not be used. Specific advice on the use of dose coefficients may also be given.


An important focus of the report will be medical exposures. The use of ‘effective dose’ for patient exposures is problematic particularly when it is used to assess risk in specific individuals, including children. However, effective dose may be a useful tool for comparisons of, for example, different diagnostic examinations and interventional procedures, the use of different technologies for the same medical examinations, and the use of similar technologies and procedures in different hospitals and countries. 




John D Harrison 
Oxford Brookes University and Public Health England, UK
Curriculum Vitae


Dr Mikhail Balonov 
Institute of Radiation Hygiene, Russian Federation
Dr Pedro Ortiz Lopez 
Dr Colin Martin 
University of Glasgow, UK
Curriculum Vitae
Dr Hans-Georg Menzel 
CERN (retired), Germany
Curriculum Vitae
Jane Simmonds 
Public Health England (PHE), UK
Prof Rebecca Smith-Bindman 
University of California San Francisco, USA
Richard Wakeford 
The University of Manchester, UK
Curriculum Vitae

Corresponding Members

François Bochud 
IRA CHUV, Switzerland

Business Address
Rue du Grand-Pré 1
CH-1007 Lausanne
Wesley E. Bolch 
University of Florida, USA
Curriculum Vitae

Business Address
Advanced Laboratory for Radiation Dosimetry Studies (ALRADS)
Department of Biomedical Engineering
1275 Center Drive
University of Florida
Gainesville 32611-6131

Telephone and E-mail
352 273 0303 (Office) (Main email) (Office)
9501 SW 56th Place
Gainesville, Florida 32608
Dr John R. Cooper 
Curriculum Vitae
Prof Christian Streffer