Linked from

The 7 pages that link to Smoke detector, each with the reason it gives.

• Alpha decayRelated: Many such detectors use alpha-emitting americium-241 to ionize air.

• Alpha particleRelated: Some ionization smoke detectors use an alpha-emitting americium source.

• AmericiumNarrower topic: Americium-241 powers the ionization type, one major smoke-detector design.

• Fire alarm systemRelated: Smoke detectors provide a common first signal to the system’s control equipment.

• Radioactive sourceBroader topic: A sealed source ionizes air in the sensing chamber of an ionization smoke detector.

• Alarm deviceBroader topic: It is a common household alarm for detecting evidence of fire.

• PhototubeRelated: Some early photoelectric smoke detectors used a light source and phototube to sense scattered light.