DefinitionAn <IONIZATION SMOKE DETECTOR> is an <INSTRUMENTATION ITEM> and a <SMOKE DETECTOR> that is using an ionization chamber and a source of ionizing radiation (Americium-241) to detect smoke
If smoke enters the ionization chamber, it disrupts the normal current between the electrodes -- the smoke particles attach to the ions and neutralize them. The smoke detector senses the drop in current between the plates and sets off the horn.
