Alpha Particles
Synonyms
Alpha Particle
Alpha Radiation
Alpha Ray
Alpha Rays
Particle, Alpha
Particles, Alpha
Radiation, Alpha
Ray, Alpha
Rays, Alpha
Positively charged particles composed of two protons and two NEUTRONS, i.e. equivalent to HELIUM nuclei, which are emitted during disintegration of heavy ISOTOPES. Alpha rays have very strong ionizing power, but weak penetrability.