A mean glandular dose(MGD)of 130 to 150 mrad is common for a 4 cm thickness mammogram.
[出處:TEXTBOOK of Radiographic Positioning and Related Anatomy(Chap. 18)]
4 一次乳房攝影曝露所造成之乳腺劑量約為多少 mGy? (A) 0.12~0...-阿摩線上測驗