South Australian Numbered Regulations

RADIATION PROTECTION AND CONTROL (IONISING RADIATION) REGULATIONS 2015 (NO 203 OF 2015) - REG 4

4—Definition of annual effective dose

        (1)         In these regulations—

"annual effective dose" means the sum of—

            (a)         the effective dose received from external radiation during a calendar year; and

            (b)         the committed effective dose received from radionuclides taken into the body during that year calculated in the manner set out in subregulation (2)

.

        (2)         The committed effective dose received from radionuclides taken into the body must be calculated—

            (a)         using the methods recommended by the International Commission on Radiological Protection in—

                  (i)         Publication 68 Dose Co-efficients for Intakes of Radionuclides by Workers published by the Commission, as varied from time to time; and

                  (ii)         (if applicable), Publication 65 Protection Against Radon-222 at Home and at Work published by the Commission, as varied from time to time; and

            (b)         if some of the data relevant to the circumstances of a case is not available—using the data recommended or adopted by the International Commission on Radiological Protection in the publications referred to in paragraph (a)

.

        (3)         For the purposes of subregulation (2)

, if—

            (a)         the International Commission on Radiological Protection recommends or adopts more than 1 value for an item of data; and

            (b)         the information required so as to choose which of those values is relevant to the circumstances of the case has not been obtained by the specified employer,

the value that gives rise to the largest value of committed equivalent dose must be used in the calculation.