Category Archives: Particle physics

Cherenkov radiation

Cherenkov Radiation

This is an electromagnetic radiation generated when a charged particle such as an electron or a proton passes through a dielectric medium at a speed greater than the phase velocity of light. Dielectric is a poor conductor of electricity and hence, acts as an electric insulator, which gets easily polarized by these charged particles. Molecules of this medium return to the ground state, emitting radiation. Nuclear reactors, displaying blue glow is a phenomenon of the Cherenkov radiation. Continue reading