Re: Mirror cooling

Surface area, thickness and volume of glass each have a definite effect on the cooling time. The surface area and thickness will have the greatest overall effect, so a thinner mirror in ratio to it's thickness will cool faster and the larger the surface area the more the heat will radiate and conduct away from the glass.

I suggest going high tech and installing a powdered dry ice injector. You can also burn warts off of skin, so maybe make a few bucks on the side to pay for it.

Liquid oxygen/nitrogen injectors may be a bit overkill. Far be it from me to suggest something so radical. No, not me.

Phil

So basically you seem to find the only important
parameter is the thickness. I guess this makes sense.
As far as conducting heat out of the mirror, there
is not much difference between diameter:thickness
of 6:1 or 8:1 or an infinite slab. The "short" path
for heat out of the mirror is through the thickness.