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Why Does Radiation Glow Blue?
Why Does Radiation Glow Blue?
Marcus Vance••6 min read
As Cherenkov radiation
Cherenkov radiation
Cherenkov radiation (/tʃəˈrɛŋkɒf/; Russian: Черенков) is electromagnetic radiation emitted when a charged particle (such as an electron) passes through a dielectric medium at a speed greater than the group velocity (speed of propagation of a wave in a medium) of light in that medium.
passes through the water, the charged particles travel faster than light can through that medium. So, the light you see has a higher frequency (or shorter wavelength) than the usual wavelength. Because there is more light with a short wavelength, the light appears blue.
What causes radioactive glow?
The water slows the charged particles down by absorbing some of their energy and the water then gives off this energy in the form of light. This makes the water around some radioactive objects appear to glow very brightly.
What is blue glow?
Ionized-air glow is the fluorescent emission of characteristic blue–purple–violet light, often of a color called electric blue, by air subjected to an energy flux.
Marcus Vance is a cybersecurity auditor and technology writer dedicated to educating the public about online safety, data privacy regulations, enterprise security, and emerging cyber threats.
