LIGO Document E0900331-v1

DCN Updated R3 Coating Specification

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E - Engineering documents
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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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