آشکارساز سوسوزن

thumb|right|Scintillation crystal surrounded by various scintillation detector assemblies thumb|Extruded plastic scintillator material fluorescing under a UV inspection lamp at [[Fermilab for the MINERνA project]] thumb|Various scintillation crystals. The second crystal from the left is targeted by an UV source and shines brightly in visible light. A scintillator ( ) is a material that exhibits scintillation (also termed radioluminescence), a kind of luminescence, when excited by ionizing radiation. Luminescent materials, when struck by an incoming particle, absorb its energy and scintillate (