Radiation Dose Limits — NDEB AFK MCQ

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ModerateRadiology & ImagingRadiation Dose LimitsNDEB AFK

What is the maximum cumulative effective dose of ionising radiation recommended annually for a member of the general public according to Canadian radiation protection guidelines?

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Correct answer: E — 1.0 mSv

The annual effective dose limit for members of the general public (including dental patients) is 1.0 mSv per year according to the Canadian Nuclear Safety Commission (CNSC) and International Commission on Radiological Protection (ICRP). The occupational dose limit for radiation workers is 50 mSv per year (with a 5-year average not exceeding 20 mSv/year). A single periapical radiograph delivers approximately 0.005-0.01 mSv.

Reference: CNSC – Canadian Radiation Protection Regulations; ICRP Publication 103, 2007