[ RadSafe ] Thorium Lamp Mantles

csimmons at csimmonslaw.com csimmons at csimmonslaw.com
Fri May 29 16:43:24 CDT 2015

Ted -
Most US lantern mantels today use cerium in lieu of Th (probably on advice of
their lawyers).  You can still find the Th mantles for sale on eBay, at 3 - 5
times original cost.  As an alternative check source, still commercially
available at the moment, you may consider a thoriated tungsten welding
electrode, available at welding shops or also on eBay.  Good luck.
Charlie Simmons

> On May 29, 2015 at 5:11 PM Ted de Castro <tdc at xrayted.com> wrote:
> Does anyone know where there may be a source of the Thoriated - ie.
> radioactive - lamp mantles.
> I need a few check sources and only have 2 hot packets left.
> The Coleman branded ones have not been hot for some time - but I just
> went shopping around and even the imports I found are cold.
> A packet of No Salt is not quite hot enough to work well and a smoke
> detector source is too hot and a bag of fertilizer too large. AND - I
> am NOT breaking up my Fiesta Ware!!!
> Ted de Castro
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