For internal exposure, while ICRP has consolidated in ICRP Publication 119 all earlier publications (on the basis of ICRP Publication 60) on dose coefficients, updates of this publication will be provided and the coefficients that are tabulated in it will be superseded by values based on the radiation and tissue weighting factors and phantoms laid down in ICRP Publication 103.

wT is the tissue weighting factor for tissue or organ T.

(39) Committed effective dose (E(τ)) means the sum of the committed organ or tissue equivalent doses HT (τ) resulting from an intake, each multiplied by the appropriate tissue weighting factor wT . It is defined by:

"committed effective dose" (E(τ)) is the sum of the committed organ or tissue equivalent doses HT(τ) resulting from an intake, each multiplied by the appropriate tissue weighting factor wT. It is defined by:

For internal exposure, while ICRP has consolidated in ICRP Publication 119 all earlier publications (on the basis of ICRP Publication 60) on dose coefficients, updates of this publication will be provided and the coefficients that are tabulated in it will be superseded by values based on the radiation and tissue weighting factors and phantoms laid down in ICRP Publication 103.

- 2 - The most important amendments introduced by the proposal are as follows: - use of the definitions, quantities and units as well as of the radiation and tissue weighting factors set out in the latest ICRP recommendations; - stricter dose limits, as contained in the latest ICRP recommendations, which take account of more recent estimates of the risk of cancer arising from exposure to ionizing radiation and of the complex concept of health detriment; - introduction of provisions relating to radiation protection in some cases of occupational exposure to natural radiation sources; - a ban on certain unjustified uses of radioactivity; ...[+++] - extending the protective provisions to include radiological accidents; - introduction of the concept of "dose constraint" in relation to a given source; - changes to the radioactivity levels associated with the authorisation and reporting conditions laid down by the Directive.