Victorian Numbered Regulations

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RADIATION REGULATIONS 2007 (SR NO 89 OF 2007) - REG 4

Definitions

In these Regulations—

effective dose means the sum of the weighted equivalent doses in all the tissues and organs of the body and is determined by the formula—

    E = w T H T
T

where

E is the effective dose,


W T is the tissue weighting factor for tissue or organ T ,

and

H T is the equivalent dose in tissue or organ T ;

equivalent dose means the absorbed dose averaged over a tissue or organ modified by the radiation weighting factor, W R and is determined by the formula—

H T = w R D T, R
R

where

H T is the equivalent dose in tissue or organ T,

and

D T,R is the absorbed dose averaged over the tissue or organ T, due to radiation R;

"medical exposure" means—

        (a)     the receipt of a radiation dose by a patient during the course of, or for the purposes of, a diagnosis or treatment of an injury or illness of the patient; or

        (b)     an exposure of a person to an emission of radiation (other than occupational exposure) knowingly incurred by that person while supporting and comforting a patient receiving a radiation dose during the course of, or for the purposes of a diagnosis or treatment of, an injury or illness of the patient; or

        (c)     the receipt of a radiation dose by a volunteer during the course of medical research;

"occupational exposure" means the exposure to an emission of radiation of a person using a radiation source or directly conducting a radiation practice;

"public exposure" means the exposure of a person to an emission of radiation that is not occupational exposure or medical exposure;

"the Act" means the Radiation Act 2005 .


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