LIGO Document T1300695-v1

BS Elliptical Baffle--Black Glass Design Scattering Analysis

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T - Technical notes
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A new design for the BS Elliptical Baffle is proposed, in which black glass replaces the current stainless steel (SS) material.
The cut edge of the beam hole in the black glass baffle is a major scattering element and the edge must be fire-polished to avoid this being a dominant scattering surface.
A factor 18 times reduction in scattered light displacement noise could be achieved with the black glass baffle.

AOS SLC BS Elliptical Baffle
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