= Interface between CRY and MIR =
== Interface Item (1) Point defect ==

High-angle scattering on the mirror surface is an issue.<<BR>>
We assume '''10ppm''' scattering loss from the point defect.

== Interface Item (2) Absorption ==

|| ||target||future goal||
||Coating||1ppm||0.5ppm||
||Substrate||50ppm/cm||20ppm/cm||