Equivalent Dose is measured in which unit?

Equivalent Dose is measured in which unit?

• A. coulombs per kilogram (C/kg)
• B. Gray (Gy)
• C. Sievert (Sv)
• D. Becquerel (Bq)

Answer: (D)

Equivalent dose expresses the biological risk of radiation by combining how much energy is deposited in tissue with the radiation’s ability to cause harm. This risk-based quantity is measured in Sievert (Sv). The absorbed dose, measured in grays (Gy), tells how much energy per mass was deposited, but equivalent dose accounts for radiation type with weighting factors, so it reflects potential biological effect and uses Sv. The other concepts map to different quantities: exposure in air is measured in coulombs per kilogram, absorbed dose is in grays, and radioactive activity is measured in becquerels.

Equivalent dose expresses the biological risk of radiation by combining how much energy is deposited in tissue with the radiation’s ability to cause harm. This risk-based quantity is measured in Sievert (Sv). The absorbed dose, measured in grays (Gy), tells how much energy per mass was deposited, but equivalent dose accounts for radiation type with weighting factors, so it reflects potential biological effect and uses Sv. The other concepts map to different quantities: exposure in air is measured in coulombs per kilogram, absorbed dose is in grays, and radioactive activity is measured in becquerels.