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Re: UV Detection methods was Ultraviolet light from brush discharge.

Snip
>> I was
> > just running the coil for short runs in the dark when I noticed that the
arc
> > from the gap hardly lit up the room, except for white papers on the
wall,
> > which glew (is that a word) bright purple - that is to be expected, but
the
> > odd thing was, that after I turned off the coil there was a glowing
violet
> > plume on the carpet in the direction that the fan was blowing (through
the
> > back of the gap, like a jet engine exhaust). It was like there was
> > glow-in-the-dark material in the carpet, and it lasted clearly vissible
for
> > at least 5 secconds before fading away. Has anyone ever heard of unlikly
> > materials aquiring(storing) UV energy like this and slowly releasing
> > it? -thought it was weird anyway.
>
There are some minerals that will do exactly that. I have a piece of Calcite
that does it very well.

S.G.