A typical abdomen CT scan exposes a person to about 20 mGy radiation. How much is this dose in rad units? How many joules are absorbed by a woman if she weighs 60 kg?

• A. 0.020 rad; 0.012 J
• B. 0.20 rad; 0.12 J
• C. 2.0 rad; 1.2 J
• D. 20 rad; 12 J

Answer: (C)