Radiation Protection Regulations — 1
1 (1) The definitions in this subsection apply in these Regulations. absorbed dose means the quotient, in gray, obtained by dividing the energy absorbed through exposure to radiation by the mass of the body or part of the body that absorbs the radiation. ( dose absorbée ) Act means the Nuclear Safety and Control Act . ( Loi ) balance of the pregnancy means the period from the moment a licensee is informed, in writing, of the pregnancy to the end of the pregnancy. ( reste de la grossesse ) caregiver means a person who willingly and voluntarily — and not as an occupation — helps in the support and comfort of a person who has been administered a nuclear substance for therapeutic purposes as directed by a medical practitioner who is qualified to give such direction under the applicable provincial legislation. ( personne soignante ) committed means, in respect of a dose of radiation, received by an organ or tissue from a nuclear substance during the 50 years after the substance is taken into the body of a person 18 years old or older or during the period beginning at intake and ending at age 70, after it is taken into the body of a person less than 18 years old. ( engagée ) dosimeter means a device for measuring a dose of radiation that is worn or carried by an individual. ( dosimètre ) effective dose means the sum of the products, in sievert, obtained by multiplying the equivalent dose of radiation received by and committed to each organ or tissue set out in column 1 of an item of Schedule 1 by the weighting factor set out in column 2 of that item. ( dose efficace ) equivalent dose means the product, in sievert, obtained by multiplying the absorbed dose of radiation of the type set out in column 1 of an item of Schedule 2 by the weighting factor set out in column 2 of that item. ( dose équivalente ) exemption quantity has the same meaning as in section 1 of the Nuclear Substances and Radiation Devices Regulations . ( quantité d’exemption ) five-year dosimetry period means the period of five calendar years beginning on January 1 of the year following the year in which these Regulations come into force, and every period of five calendar years after that period. ( période de dosimétrie de cinq ans ) licensed activity means an activity described in any of paragraphs 26(a) to (f) of the Act that a licence authorizes the licensee to carry on. ( activité autorisée ) licensee means a person who is licensed to carry on an activity described in any of paragraphs 26(a) to (f) of the Act. ( titulaire de permis ) one-year dosimetry period means the period of one calendar year beginning on January 1 of the year following the year in which these Regulations come into force, and every period of one calendar year after that period. ( période de dosimétrie d’un an ) radon progeny means the following radioactive decay products of radon 222: bismuth 214, lead 214, polonium 214 and polonium 218. ( produit de filiation du radon ) skin means the layer of cells within the skin that are 7 mg/cm 2 below the surface. ( peau ) worker means a person who performs work that is referred to in a licence. ( travailleur ) working level [Repealed, SOR/2020-237, s. 1] working level month [Repealed, SOR/2020-237, s. 1] (2) For the purpose of the definition dosimetry service in section 2 of the Act, a dosimetry service is a facility that is licensed by the Commission to measure and monitor radiation doses. (3) For the purpose of the definition nuclear energy worker in section 2 of the Act, the prescribed limit for the general public is 1 mSv per calendar year. SOR/2020-237, s. 1