File:Radioactive Smoke Detector - Americium 241
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[edit]| Description | English: This video shows very low levels of radioactivity that escape from an ionization-type smoke detector that contains 0.9 microcuries of radioactive Americium 241 (according to the label). A simple Geiger counter with a Pancake probe is used for the measurements. If you look at other YouTube videos, you can see that the tiny americium source is intensely radioactive -- perhaps even too radioactive to be measured with this type of geiger counter, since it would overwhelm the geiger tube. Only a tiny fraction of that radioactivity passes through the case and escapes from the smoke detector. I did not disassemble the smoke detector, since it had to go back up on the ceiling after the video. Notes: This is a plug-in type smoke detector, with battery backup. The battery was removed for this video, since the smoke detector complains about being unplugged. |
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| Source | Wikimedia Commons | |||
| Author | uyt384 | |||
| Permission (Reusing this file) |
This file is licensed under CC BY. You are free to share and adapt this work as long as attribution is provided and changes are indicated. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:39, 1 February 2026 | 1 min 37 s, 1,920 Ã 1,080 (23.36 MB) | Xenotron (talk | contribs) | Imported media from uploads:5fafaed2-ff50-11f0-afed-560e478790eb |
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