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- From: cescript@mtu.edu (Charles Scripter)
- Subject: Re: Are Your Light Bulbs Radioactive?
- Message-ID: <1992Sep9.013437.27935@mtu.edu>
- Sender: news@mtu.edu
- Nntp-Posting-Host: fishlab11.fsh.mtu.edu
- Organization: Michigan Technological University
- References: <STEINMAN.92Aug24173740@hawk.is.morgan.com> <s7TFqB10w165w@iowegia.uucp>
- Date: Wed, 9 Sep 1992 01:34:37 GMT
- Lines: 30
-
- In article <s7TFqB10w165w@iowegia.uucp>, quest@iowegia.uucp
- (Steve J. Quest) writes:
-
- > steinman@is.morgan.com (Jan Steinman) writes:
- >
- > > >Abstract: Alert!!! some compact flourescent light bulbs have radioactive
- > > >materials in them.
- >
- > Can anyone tell me exactly what radioactive substance is
- > used in these lamps? I can assume the element is thorium, as that
-
- Thorium, as this is very efficient at converting heat to white light.
- Incandescents use Thoriated Tungsten for the same reason. Similarly,
- gas lantern mantles are "Thoriated" for the same reason.
-
- > is used to "enrich" the electron emission from the cathodes in TV
- > picture tubes. Please all, keep this in mind- a radioactive
- > element OUTSIDE the body is usually harmless in small amounts.
- > Once inside, the damage begins (so don't munch on your fluorescent
- > tubes) ;)
-
- If I recall correctly, Thorium is an Alpha emitter. FAST Alphas have
- ranges in air of a few centimeters (after 3-4 cm, you won't be able to
- detect them, as most of them have been stopped).
-
- --
- Charles Scripter * cescript@phy.mtu.edu
- Dept of Physics, Michigan Technological University, Houghton, MI 49931
- -------------------------------------------------------------------
- With your one remaining eye, please do NOT look back into the laser
-