LIGO Document E0900331-v1

DCN Updated R3 Coating Specification

Document #:
LIGO-E0900331-v1
Document type:
E - Engineering documents
Other Versions:
Abstract:
This DCN reflects the elimination of the R3 figure change before/after coating specification.

Tolerance on the R3 optic sag is roughly 200 nm over the 54mm beam radius. The 8 nm requirement was placed on the R3s by similarity. It is too restrictive.


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