scintillation counterAn instrument for detecting ionizing radiation. A brief localized light flash is produced in a phosphor when ionizing radiation such as X-rays or protons is incident on it. In early counters, the flashes were counted directly using a microscope, but now they are converted into electric impulses and counted electronically. Related category INSTRUMENTATIONAlso on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |