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Design of a tuned mass damper for high quality factor suspension modes in Advanced LIGO

Robertson, N. A. and Fritschel, P. and Shapiro, B. and Torrie, C. I. and Evans, M. (2017) Design of a tuned mass damper for high quality factor suspension modes in Advanced LIGO. Review of Scientific Instruments, 88 (3). Art. No. 035117. ISSN 0034-6748. http://resolver.caltech.edu/CaltechAUTHORS:20170410-121317326

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Abstract

We discuss the requirements, design, and performance of a tuned mass damper which we have developed to damp the highest frequency pendulum modes of the quadruple suspensions which support the test masses in the two advanced detectors of the Laser Interferometric Gravitational-Wave Observatory. The design has to meet the requirements on mass, size, and level of damping to avoid unduly compromising the suspension thermal noise performance and to allow retrofitting of the dampers to the suspensions with minimal changes to the existing suspensions. We have produced a design satisfying our requirements which can reduce the quality factor of these modes from ∼500 000 to less than 10 000, reducing the time taken for the modes to damp down from several hours to a few minutes or less.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.4978796DOIArticle
http://aip.scitation.org/doi/abs/10.1063/1.4978796PublisherArticle
Additional Information:© 2017 AIP Publishing LLC. Received 10 January 2017; accepted 4 March 2017; published online 30 March 2017. We wish to thank colleagues in the LIGO Scientific Collaboration for their support and interest in this work. We thank our colleagues at the LIGO Livingston Observatory for taking data on the BRD performance in situ. We also acknowledge the following colleagues for input on various aspects of the design and implementation of the BRDs: Ben Abbott, Rich Abbott, Stuart Aston, Dennis Coyne, Brian Lantz, Travis Sadecki, Eddie Sanchez, Evan Sloan, Bob Taylor, Gary Traylor, and Betsy Weaver. We acknowledge the support provided by the National Science Foundation for this work. LIGO was constructed by the California Institute of Technology and Massachusetts Institute of Technology with funding from the National Science Foundation and operates under Cooperative Agreement No. PHY-0757058. Advanced LIGO was built under Award No. PHY-0823459. The work at Stanford University is supported by Cooperative Agreement No. PHY-1404430. This paper has LIGO document No. P1600328.
Group:LIGO
Funders:
Funding AgencyGrant Number
NSFPHY-0757058
NSFPHY-0823459
NSFPHY-1404430
Other Numbering System:
Other Numbering System NameOther Numbering System ID
LIGO DocumentP1600328
Record Number:CaltechAUTHORS:20170410-121317326
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20170410-121317326
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:76474
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:10 Apr 2017 21:10
Last Modified:02 Mar 2018 19:36

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