The SI unit of absorbed radiation dose is: (i) Sievert (Sv) (ii) Gray

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Unit 1: Science Behind Radiological Equipment

20262m

The SI unit of absorbed radiation dose is:

(i) Sievert (Sv)
(ii) Gray (Gy)
(iii) Becquerel (Bq)
(iv) Coulomb (C)

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Answer: (ii) Gray (Gy)

Absorbed dose is energy absorbed per unit mass: 1 Gy = 1 J/kg. Sievert is the unit of equivalent/effective dose, and Becquerel is the unit of activity.

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