Suggestions for modifications to future suspension designs

Document #:

LIGO-T1300993-v2

Document type:

T - Technical notes

Abstract:

Summary of a discussion at Stanford on June 26, 2013 brainstorming changes we might want in beyond-aLIGO suspensions.

Files in Document:

• T1300993-v2 (Suggestions_for_future_sus_mods-v2.pdf, file is not accessible)

Other Files:

• T1300993-v2 (Suggestions_for_future_sus_mods-v2.docx, file is not accessible)

Topics:

• Basic R&D

Authors:

• Brian Lantz
• Jeffrey Kissel
• Brett Shapiro
• Dakota Madden-Fong
• Dan DeBra

Notes and Changes:

Added another point stating the top mass should have 4 OSEMs like the UIM and PUM to make length to angle decoupling easier. Also added Rana's idea of replacing the ESD with a 'photon calibrator' like device.

Related Documents:

• LIGO-G1601426: Alternative design approach for caging, sensing, and controlling next generation suspensions