File:Radioactive Smoke Detector - Americium 241.webm
Radioactive_Smoke_Detector_-_Americium_241.webm (WebM audio/video file, VP8/Vorbis, length 1 min 26 s, 480 × 360 pixels, 232 kbps overall, file size: 2.39 MB)
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Summary
[edit]DescriptionRadioactive Smoke Detector - Americium 241.webm |
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. |
Date | |
Source | Radioactive Smoke Detector -- Americium 241 |
Author | uyt384 |
Licensing
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This file, which was originally posted to
Radioactive Smoke Detector -- Americium 241, was reviewed on 16 March 2014 by reviewer Indeedous, who confirmed that it was available there under the stated license on that date.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:45, 14 March 2014 | 1 min 26 s, 480 × 360 (2.39 MB) | Jacopo Werther (talk | contribs) | == {{int:filedesc}} == {{Information |Description =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 Gei... |
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