According to NCRP Report #116, the occupational cumulative effective dose limit = age in years × what dose (example commonly cited)?

According to NCRP Report #116, the occupational cumulative effective dose limit = age in years × what dose (example commonly cited)?

• A. 5 mSv
• B. 0.1 mSv
• C. 0.5 mSv
• D. 10 mSv

Answer: (D)

The idea being tested is that the total occupational radiation dose a person may accumulate over a lifetime is tied to their age. NCRP Report 116 sets the rule that the cumulative occupational dose limit equals the worker’s age in years multiplied by 10 mSv. So, for example, a 30-year-old could in theory accumulate up to about 300 mSv in their career, while a 60-year-old could reach around 600 mSv. The factor used in the formula is 10 mSv, which is why that option is the correct one. The other values don’t fit this lifetime-dose formula.

The idea being tested is that the total occupational radiation dose a person may accumulate over a lifetime is tied to their age. NCRP Report 116 sets the rule that the cumulative occupational dose limit equals the worker’s age in years multiplied by 10 mSv.

So, for example, a 30-year-old could in theory accumulate up to about 300 mSv in their career, while a 60-year-old could reach around 600 mSv. The factor used in the formula is 10 mSv, which is why that option is the correct one. The other values don’t fit this lifetime-dose formula.