scintillator
/ˈsɪntɪleɪtər/
noun
- A material that produces flashes of light (scintillations) when it absorbs radiation, used in detectors.
- The scientist chose a sodium iodide crystal as the scintillator for the experiment.
- Plastic scintillators are often used in large-scale radiation detectors.
- The scintillator in the detector glows when hit by a gamma ray.
Synonyms