LLO BS Prism Gluing Issue and Resolution

Document #:

LIGO-T1200385-v1

Document type:

T - Technical notes

Abstract:

When the LLO BS was hung, it had a large pitch offset, possibly due to prisms glued in the wrong position. This document describes the efforts to understand the problem and the eventual decision to correct it using trim mass at the IM.

Files in Document:

• T1200385-v1.pdf (2.3 MB)

Other Files:

• T1200385-v1.docx (2.9 MB)

Topics:

• Modelling
• Suspensions
• Installation

Authors:

• Mark Barton
• Janeen Romie
• Norna Robertson

Keywords:

SUS LLO BSFM BS prism gluing

Notes and Changes:

-v1: preliminary draft for discussion - needs more data and a conclusion.