ICRP publication 26 - 1977
The recommended system of radiation protection is based upon 3 principles:
•
Benefit of a decision that alters the radiation exposure situation must offset
the radiation detriment (
Justification)
•
Exposures (number of people and magnitude of doses) and likelihood of
exposure should be kept as low as reasonably achievable (ALARA), technical,
economic and social factors being taken into account (
Optimization of
protection and safety
)
•
Dose limits should be set to ensure that no individual faces an unacceptable
risk in normal circumstances from planned exposure situations other than
medical (
Limitation of doses
*
)
*
No dose limitation applies to medical exposure - however, both justification and optimization
are essential. Limits need to be applied for public and occupational exposures.