noun
Cherenkov effect
Physics term for the emission of light when a charged particle passes through a dielectric medium at a speed greater than the phase velocity of light in that medium.
チェレンコフ効果は原子炉の冷却水で青白い光として観測される。
The Cherenkov effect is observed as a bluish light in the cooling water of nuclear reactors.
Named after the Soviet physicist Pavel Cherenkov, who discovered the effect in 1934. The Japanese term is a direct borrowing of the Russian name combined with 効果 (effect).