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Re: [ATM] Mirror cell
19 mm is 0.75 inch. There are 3, 4 and 6 point Plop optimized designs
for exactly this set of mirror dimensions at
http://pong.telerama.com/~mdholm/atm/cells/index.html
The 3 point design gives 1/113 wave RMS. Since I use a reference
wavelength of 500 nM for my calculations, this translates to 4.4 nM.
This is good support and has the advantage that the cell performance
does not depend on mechanical fit or friction. For the 3 point design,
the centers of the supports go at a radius of 0.390r or 1.56 inch
(39.6mm) from the center of the mirror (assuming the mirror is 8.00 inch
in diameter). If the mirror diameter is a little different, just scale
to fit. A small linear scaling will not upset the calculations
significantly.
Mark Holm
mdholm@telerama.com
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