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- DictionaryScin·til·la·tion/ˌsin(t)əˈlāSHən/
noun
- 1. a flash or sparkle of light: "scintillations of diamond-hard light"
noun
Flash of light produced in a transparent material by the passage of a particle
In condensed matter physics, scintillation ( SIN-til-ay-shun) is the physical process where a material, called a scintillator, emits ultraviolet or visible light under excitation from high energy photons (X-rays or gamma rays) or energetic particles (such as electrons, alpha particles, neutrons, or ions). See scintillator and scintillation counter for practical applications. Wikipedia