Timeline for Were radioactive materials used in neon indicator lamps? [closed]
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
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| Jul 4 at 16:18 | history | closed |
Farcher Matt Hanson John Rennie |
Not suitable for this site | |
| Jul 4 at 16:00 | comment | added | Farcher | To prevent dark affect an external source may be run near the neon lamps or in some cases, custom Neon lamps can be supplied with a radioactive gas, often Krypton 85. from International Light | |
| Jul 4 at 14:48 | comment | added | Jos Bergervoet | @A Nejati I see it repeatedly mentions things like "Several types of glow lamps have a radioactive additive". (Still not sure if the tiny ones used as indicator lights often used it, but most likely some of them did...) | |
| Jul 4 at 14:35 | comment | added | A Nejati | See worldradiohistory.com/Archive-Catalogs/Suppliers/GHI/… | |
| Jul 4 at 14:35 | comment | added | A Nejati | Some did, some didn't. NE-2 lamps don't contain any radioactive materials but NE-83 lamps apparently do. It can be verified that NE-2 lamps require higher voltage to start in the dark. | |
| Jul 4 at 14:28 | comment | added | Jon Custer | I’ve never seen mention of this in any of the training on radiation or waste disposal over the decades. For context, disposal of jewelers rouge, a classic polishing compound, is now considered radioactive mixed waste because of the unintended trace radium in the cerium oxide. If neon lamps had something in them, we wouldn’t be able to just throw them out. | |
| Jul 4 at 13:55 | review | Close votes | |||
| Jul 4 at 16:18 | |||||
| Jul 4 at 13:35 | comment | added | FlatterMann | Adding either sounds like a bad idea because the relatively short half life of either nucleus will considerably change device characteristics over the (usually long) lifetime of the device. This may not be much of a problem with a glow starter which is usually a device that can (and will) be replaced regularly, but it could be an issue with a neon lamp based electronic device. Having said that, just because it's a bad idea doesn't mean that it's not happening. | |
| Jul 4 at 13:34 | comment | added | Farcher | I’m voting to close this question because it belongs in History of Science Stack Exchange. | |
| Jul 4 at 12:06 | history | asked | Jos Bergervoet | CC BY-SA 4.0 |