Topic: painted Uranium vase victorian bohemian??

[jonchellycain]

I will get the ligt on it when i gets a bit darker, that way its easier to see where the glow comes from, The layer is quite thin although is thicker at the low waist (more like ankle )
thanks michelle

[Lustrousstone]

You should be able to tell by pointing a key fob light inside or even a tube light across the top. With my tube light the inner layer stays white both inside and at the edge. You have to shine it on the inside because if you shine it from the outside the green light produced is transmitted through the white layer. Green light is not produced until the UV light gets to the uranium layer, so if there isn't any uranium in the white you won't see the green on the inside, just on the outside where it has penetrated the white layer. Think of it like a chemical reaction - it's not a light transmission or reflection effect, so it won't happen until the light and the uranium atoms meet.

[krsilber]

You're probably right that the uranium's in the outside.  At the top, where you can see the inside layer, it looks less bright in the UV photo.

I would think that the effect would be similar to reflection, since the uranium is absorbing the energy then re-emitting it.  It's sending it in all directions, not just in the direction it was going to begin with.  The difference would be that less light is getting to it from inside, since it has to go through the (semi) opaque white.