CLO16: Describe particulate radiation.
Particulate radiation is a type of ionizing radiation that uses subatomic particles that are in motion and have adequate kinetic energy. There are two main subatomic particles named alpha particles and beta particles. An alpha particle is a large helium nucleus that contains a positive electric charge and only emit from heavy elements. These particles cannot penetrate most items. A beta particle is an small electron that originates from a unstable nucleus and carries a negative as well as a positive charge. Beta particles can are emitted from radioisotopes and can penetrate light items.
*
Rad Radiography 