Schnupp Effect: ETM /ITM MECHANICAL CLEARANCES & COOKIE CUTTER 'BLANK' FEASIBILITY

Document #:

LIGO-E1200345-v3

Document type:

E - Engineering documents

Abstract:

A preliminary document exploring allowable ETM's & ITM's mechanical clearances along the beam center line & the feasibility of cookie cutter 'BLANKS' for the following chambers:
Moving ITMx 15mm in the direction away from global zero (WBSC3, LBSC3)
Moving ITMy 15mm in the direction toward global zero (WBSC1, LBSC1)
Leaving ETMx as is (WBSC9, LBSC4)
Moving ETMy 30mm in the direction toward global zero (WBSC10, LBSC5)

Files in Document:

• E1200345-v3.pdf (3.4 MB)

Other Files:

• E1200345-v3 (RedLined).pdf (3.4 MB)

Topics:

• Preliminary Design
• System Engineering

Authors:

• Eduardo Sanchez
• Jose Eduardo Chavez

Notes and Changes:

- Some notes have been added to the preliminary proposal document, about the considerations to be taken into accoutn when implementing the Schnupp Effect.
- A note was added to page 11 of document E1200345-v3 (RedLined), about the correct X coordinate for ETMX.

Referenced by:

• LIGO-D0900360-v13: aLIGO Systems, WBSC8-H2 Top Level Chamber Assembly