Re: how safe are our collections
I think it's reasonable to say that the only people judged to be at significant risk from Thorium doped mantles were those who worked in the factory that made and packaged them.
Radium paint is a bigger deal.
Uranium glass varies- mine isn't much above background and is of no concern. It glows like mad under UV. I have read that much of the radiation originates from impurities rather than Uranium- hence the variation in emission.
Dave
|