gamma radiationElectromagnetic radiation emitted by radioactive decay and having energies in a range from ten thousand (104) to ten million (107) electron volts.
Gamma RayA type of high-energy radiation that is different from an x-ray.
Geiger counterA Geiger-Müller detector and measuring instrument. It contains a gas-filled tube which discharges electrically when ionizing radiation passes through it…
GeneratorA device for converting mechanical energy to electrical energy.
grayThe special name for the unit that expresses a measure of absorbed dose. One gray corresponds to an energy deposition of one joule per kg of living tissue.