system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: In movies, during nuclear fallout, people in hazmat suits are usually seen being sprayed down by a liquid (seemingly to control the radiation) but if Radiation can penetrate clothes and metal then how can this liquid be used to control the spread of Radiation?
gpt
Well first, not all radiation is equal. A radiation suit can prevent penetration by alpha particles (helium nuclei) or beta particles (electrons), but not neutrons or gamma rays. In addition to blocking heavier particles, suits also keep the person wearing them from getting dust containing radioactive isotopes on them or in their lungs. Washing the exterior of the suits with soapy water just removes this dust so it doesn't spread and irradiate other people/places.