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From: Chuck Simmons
Organization: You jest.
X-Mailer: Mozilla 4.61 [en] (X11; U; Linux 2.0.33 i586)
Subject: Re: Any ideas on measuring radiation in the home ?
References: <2v_l9.76313$jG2.email@example.com><firstname.lastname@example.org> <0I1YkqBZoKm9Ewbi@jmwa.demon.co.uk> <email@example.com> <3D9B093C.F7934D4C@webaccess.net>
Date: Thu, 03 Oct 2002 04:30:52 GMT
NNTP-Posting-Date: Wed, 02 Oct 2002 21:30:52 PDT
Dirk Bruere wrote:
> "Chuck Simmons" wrote in message
> > Dirk Bruere wrote:
> > >
> > > "Sir Charles W. Shults III" wrote in message
> > > news:OTpm9.45614$O8.firstname.lastname@example.org...
> > > > Who can say what they believe? I know that they use
> electromagnets on
> > > long
> > > > poles and a lead container to clean the stuff up with. They minimize
> > > their
> > > > exposure with distance; the bunny suits keep any dust from getting on
> > > them.
> > >
> > > When I was playing with radioisotopes at university we discovered
> > > quite interesting.
> > > We measured the count rate of Co60 after we had removed it from its lead
> > > box.
> > > At the end of the expt I decided to measure it again even though it was
> > > already back in its lead box - no significant change.
> > >
> > > Dirk
> > I am reminded of the wonderful Texas Instruments watch I had years ago.
> > I always prefer an analog watch because, in the ordinary way, I'm only
> > interested in time to the nearest 5 minutes. But many years ago I bought
> > this nice Texas Instruments watch that I could read in a dark room. It
> > had a tritium display. Of course I glowed in the dark from the
> > radioactivity thus making the watch visible. You can't get these watches
> > anymore as far as I know. If you want to glow in the dark so you can
> > read your watch, you must make other arrangements.
> Those tritium backlights were quite safe - unless broken, in which case the
> radioactive gas was released.
> It is a very low energy beta emitter.
I was living in the city where the tritium displays were made for those
watches in those days. The company was American Atomics. They had, it
seems, some leakage. There was a residential area near the plant and
health officials noted a somewhat higher spontaneous abortion rate in
the area. Investigation for possible reasons turned up American Atomics
as a common denominator for the problem. This was how the leak was
discovered. American Atomics closed immediately and filed for bankruptcy
a few days later based on probable damage claims. The TI tritium display
watches vanished from stores as stocks were depleted. I wore mine for a
number of years after but finally went back to an analog watch.
... The times have been,
That, when the brains were out,
the man would die. ... Macbeth
Chuck Simmons email@example.com
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