What does the effective dose allow us to estimate?

• A. Overall risk from exposure by combining organ doses with tissue weights.
• B. The immediate risk of skin burns.
• C. The rate of energy deposition.
• D. The maximum dose to a tissue.

Answer: (A)

Effective dose estimates the overall stochastic health risk from radiation exposure by combining the absorbed doses to all tissues with tissue weighting factors that reflect each tissue’s sensitivity to cancer and hereditary effects. This single number lets us compare different exposure scenarios and apply protection standards. It does not describe immediate deterministic effects such as skin burns, nor is it simply the rate of energy deposition or the maximum dose to a single tissue.