Page 126 - Radiation Safety

FACTORS THAT MODIFY RADIATION EFFECTS

3. Part of The Body Exposed

• Different parts of the body have different importance and

level of sensitivity towards radiation.

• Location of the radiation source:

• Eg. Alpha radiation from outside a body will not cause any

damage, but alpha source inside a body is extremely dangerous.

• Non-uniform distribution of radionuclide inside a body

• Some will concentrate in a particular organ in a body and cause

more damage.

• Eg. Iodine to thyroid glands and radium to bones.