Non-visible scanning...

[Nick Pelling <incoming@xxxxxxxxxxxxxxxxx>]

Hi Jim,

At 14:55 11/08/01 -0400, Jim Reeds wrote:
> > What type of scan would they do? Purely RGB, or UV as well (and maybe
> > glancing)?
>
> Full frontal RGB is what they do.  Everyone agrees that a clear
> set of color photocopies is needed;  no-one has made a case for
> any high-tech examination (with funny wavelengths, or of inks)
> in any terms more specific than "who knows what it might turn
> up?".

It's just that the opportunity to make high-quality UV scans of any of the 
VMS pages may not come around again for a good while. :-(

As you say, a full UV scan probably wouldn't be necessary, but there are 
definitely a handful of specific places I would have thought should be 
strongly considered - for example, the only vaguely-readable Latin in the 
margin, the deleted signature, the faint table that was (thought) destroyed 
by chemicals, etc. Marginalia, basically.

Also: it might be worth examining a single "dark painter" image under UV as 
well as RGB, to see if careful analysis of the combination of the two 
reveals anything of what was underneath - that might help indicate some of 
the rationale of the painting.

Also: some key-like pages (like f57v) may have had an extra layer of 
structure that has faded, but which may still be visible under UV.

Cheers, .....Nick Pelling.....