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Updated: May 24, 2026

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
Published on: March 11, 2021
Radiation protection principles
1Centre for Radiation, Chemical and Environmental Hazards, Health Protection Agency, Chilton, Didcot, Oxon OX11 0RQ, UK. john.cooper@hpa.org.uk
Abstract:
The International Commission on Radiological Protection (ICRP) recommends a system of radiological protection that is in use worldwide. This paper describes the elements of that system, identifying the central assumptions and principles. A key assumption for protection at low doses is that there is a simple proportionate relationship between increments in dose and increments in risk. The system focuses on changes to the level of peoples' exposure, recommending that any change is justified (i.e., the benefit is clear) and protection is then optimised (i.e., improvement in dose reduction is promoted when possible and reasonable). In doing so, the system considers the amenability of the source of exposure to control and the acceptability of the exposure to individuals or society.
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