Why is americium used in a smoke detector instead of a more available and cheaper radioactive isotope? - Quora
Page 1 of 19 Smoke alarms contain an alpha radiation source and a radiation detector. Figure 1 shows part of the inside of a smo
An 241Am Plasma Desorption Ionization (AmDI) Source Scavenged from Smoke Detectors for Ambient Mass Spectrometry Sampling | Analytical Chemistry
![GCSE PHYSICS - How does a Smoke Detector Work? - How is Radioactivity used in a Smoke Detector? - What happens when Smoke Enters a Smoke Detector? - GCSE SCIENCE. GCSE PHYSICS - How does a Smoke Detector Work? - How is Radioactivity used in a Smoke Detector? - What happens when Smoke Enters a Smoke Detector? - GCSE SCIENCE.](https://www.gcsescience.com/smoke-detector.gif)