Among ionising radiation, alpha and beta particles are charged particles that have widely attracted research attention because of their use in a number of applications including smoke detectors, ...
Alpha radiation is low penetrating. It usually is not able to penetrate clothing or human skin. It can be harmful if the alpha particles are inhaled, swallowed, or absorbed through open wounds. Alpha ...
Beta radiation is moderately penetrating. It can penetrate skin. Although clothing provides some protection. It may be harmful if deposited internally. And it may travel about half a meter in air.