Page 241 - Radiation Safety
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5. Effective Dose (E)
Different types of body tissue have different level of
radiosensitivity. Effective dose describes the biological
effect of different types of body tissue toward radiation.
Old unit: rem, S.I. unit- Sievert (Sv)
Effective Dose (E) = Absorbed Dose (D) x
Radiation Weighing Factor (W ) x Tissue Weighing
R
Factor (W )
Τ
1 Sv = 100 rem
*rem = rad equivalent man
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