On Sunday, August 10, 2003, at 07:14 AM, Kennedy McEwen wrote:
In article , Thomas Haegin <haegint@xxxxxxxxx> writes
I'm wondering if it is to be expected that ALL
radioactive glass Zuiko's will turn yellow eventually?
All of those containing alpha emission radioactive elements in the
glass, but that is not all Zuikos, not by a long way.
There is an absence of any evidence that I have seen in all this thread
which demonstrates ionizing radiation or radioactive decay to be the
causative mechanism for the color change. That rare earths change the
color of glass is well known. I would like to know the exact radiation
intensity per gram in this glass. Would be surprised if it was within
an order of magnitude of the art glasses which used uranium, thorium,
etc. to effect coloration.
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