London, United Kingdom
Smoke Detector Radiation Source
Photograph - Photograph
Smoke detector radiation source. Close-up of the internal componenets of a smoke detector, showing a chamber containing a sample of the radioactive isotope Americium 241. Any smoke entering the chamber is ionised by the radiation and conducts a current, setting off the smoke alarm.
May 7th, 2013
Viewed 12 Times - Last Visitor from Beverly Hills, CA on 08/04/2015 at 5:06 AM