Re: Radium Painted Dials

[gplahti@dukeengineering.com]

In the interest of science, I am offering (to a good home) the following
for the cost of shipping and a trip to the post office:

Old radium dial alarm clock [I have two, neither work any more]
Old Fiesta red [uranium-bearing] plate. [Great for demos]

Jerry Lahti
gplahti@dukeengineering.com
Naperville Illinois
630-778-4232


---------------------- Forwarded by Gerald P Lahti/Nuc/DukeEngineering on
01/22/99 10:03 AM ---------------------------


"J. J. Rozental" <josrozen@netmedia.net.il> on 01/22/99 10:04:03 AM

Please respond to radsafe@romulus.ehs.uiuc.edu

To:   Multiple recipients of list <radsafe@romulus.ehs.uiuc.edu>
cc:    (bcc: Gerald P Lahti/Nuc/DukeEngineering)
Subject:  Re: Radium Painted Dials




At 03:18 PM 1/21/99 -0600, you wrote:
>Any suggestions on quantifying the radium activity found on the faces of
>gauges and dials from older instrument panels?  Also, any references
>regarding the composition of radium containing paints?
>
>Send  to:
>imaibm@nv.doe.gov

Consumer products containing Ra-226, no longer produced which have been
suplied to members of the public in the past and may still sometimes be
available in second hand  markets:
Ref: The Code of Practices - Regulatory Control of Consumer Products
containing radioactive substances - IAEA 1990
Time pieces Up to 200 kBq
Compasses Up to 200 kBq
Fluorescent lamp starter Up to 40 kBq
Lightning conductor Up to 40 MBq
Ionizing chamber smoke detector Up to 550 kBq

Old document on this subject for your search

Radiation Protection Standards for radioluminous timepieces, IAEA Safety
Series 23, 1967

A survey of luminescent clocks in households, Health Physics 28, 299, 1975

Radiation Exposure from luminous watch dials, Radiol. Health data, 4, 209,
1963

J. J. Rozental
<josrozen@netmedia.net.il>
Israel

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information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html