チェレンコフ放ほう射しゃ

noun

Cherenkov radiation

Physics term for the electromagnetic radiation emitted when a charged particle passes through a dielectric medium at a speed greater than the phase velocity of light in that medium.

• 原げん子し炉ろの水すい中ちゅうで見みられる青あお白じろい光ひかりはチェレンコフ放ほう射しゃです。

  The pale blue light seen in the water of a nuclear reactor is Cherenkov radiation.