For a radiography student younger than 18, what is the annual effective dose limit in mSv?

• A. 0.1 mSv.
• B. 0.5 mSv.
• C. 5 mSv.
• D. 1 mSv.

Answer: (D)

One millisievert per year. Younger individuals are more radiosensitive and have more years ahead for potential effects to appear, so safety standards set a lower annual limit for minors to protect developing tissues and reduce lifetime cancer risk. In radiography training, this means exposures for students under 18 are kept as low as possible (ALARA), with proper shielding, optimized technique, and dosimetry monitoring; when feasible, non-patient simulations are used to avoid unnecessary exposure. The other options don’t align with these safety guidelines for minors: they are either below the required limit or exceed it.