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ID: 372633.0, MPI für Gravitationsphysik / Laser Interferometry & Gravitational Wave Astronomy
LISA pathfinder optical interferometry
Authors:Braxmaier, Claus; Heinzel, Gerhard; Middleton, Kevin; Caldwell, Martin E.; Konrad, W.; Stockburger, H.; Lucarelli, S.; te Plate, Maurice B.; Wand, V.; Garcia, Antonio; Draaisma, F.; Pijnenburg, J.; Robertson, D. I.; Killow, Christian J.; Ward, Harry; Danzmann, Karsten; Johann, Ulrich
Place of Publication:Bellingham, WA
Date of Publication (YYYY-MM-DD):2005-02
Title of Proceedings:Gravitational wave and Particle Astrophysics Detectors
Start Page:164
End Page:173
Title of Series:Proceedings of SPIE
Volume (in Series):5500
Name of Conference/Meeting:Gravitational Wave and Particle Astrophysics Detectors
Place of Conference/Meeting:Glasgow, Scotland, United Kingdom
(Start) Date of Conference/Meeting
Review Status:not specified
Audience:Not Specified
Abstract / Description:The LISA Technology Package (LTP) aboard of LISA pathfinder mission is dedicated to demonstrate and verify key technologies for LISA, in particular drag free control, ultra-precise laser interferometry and gravitational sensor. Two inertial sensor, the optical interferometry in between combined with the dimensional stable Glass ceramic Zerodur structure are setting up the LTP. The validation of drag free operation of the spacecraft is planned by measuring laser interferometrically the relative displacement and tilt between two test masses (and the optical bench) with a noise levels of 10pm/[square root of]Hz and 10 nrad/[square root of]Hz between 3mHz and 30mHz. This performance and additionally overall environmental tests was currently verified on EM level. The OB structure is able to support two inertial sensors ([approximate]17kg each) and to withstand 25 g design loads as well as 0...40°C temperature range. Optical functionality was verified successfully after environmental tests. The engineering model development and manufacturing of the optical bench and interferometry hardware and their verification tests will be presented.
External Publication Status:published
Document Type:Conference-Paper
Communicated by:Karsten Danzmann
Affiliations:MPI für Gravitationsphysik/Laser Interferometry & Gravitational Wave Astronomy
MPI für Gravitationsphysik/Teilinstitut Hannover
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