Re: Question: Optical properties of polymers

"dwdm2" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> "Ronit Morris" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
> > Hello,
> >
> > I am looking for some info on the optical properties
> > (transmittance/attenuation) of polymers for UVC light (250-260nm). Any
> > general references that would help me?
> >
> > I am also specifically interested in the same for FEP (Fluoro ethylene
> > proplyene)
> >
> > Thanks!
> > Ronit

[top posting corrected]

> If you have the way, make a quick measurement for yourself. It is easy to
> measure the transmittance. And then you can compute attenuation from the
I0
> = I exp(alpha.x) etc.

At UV wavelengths you probably have quite a lot of scattering and quite a
lot of fluorescence from the polymer, which makes it non-trivial to measure
transmittance in a well-defined way.

Johannes