Why are Smoke Detectors Radioactive? And How do Smoke Detectors Work?

Extraction of Americium 241 from Smoke Detector (Revisited)

Testing Americium in the Smoke Detector! - Nuclear Chemistry

Q&A do smoke alarms have radioactive material in them?

Intensely Radioactive Industrial Smoke Detector from the 1950's

is a smoke detector RADIOACTIVE? (yes, but small amounts of radiation)

Alpha Particle Source (Am-241) from Smoke Detectors

Some Interesting Smoke Detectors -- Ionization with Radioactive Material

Radioactivity in Smoke Detectors

Have you ever measured the Nuclear Radiation from your smoke detector?

There are two types of smoke alarm. One of 'em ain't so good.

Smoke Detector Radioactivity?

Recycling smoke detectors could cost you

Radioactive Cores from Industrial Smoke Detectors

Comparison: Most Radioactive Things

Radioactive Smoke Detectors - Americium-241

How Radiation Works using Americium 241, Alpha Particles and Gamma Rays

Radioactive smoke detector!!!!!

How radioactive is a smoke detector.

Smoke Alarm Facts: "Ionization vs Photoelectric"