Hannover 2010 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 68: Laser Applications: Optical Measurement Technology II

Q 68.4: Vortrag

Freitag, 12. März 2010, 14:45–15:00, F 342

LISA Pathfinder - An interferometric drag-free sensor with picometer accuracy in space — •Frank Steier1, Antonio Garcia Marin1, Heather Audley1, Miquel Nofrarias1, Gerhard Heinzel1, Karsten Danzmann1, Vinzenz Wand2, Peter Lützow-Wentzky2, Gerald Hechenblaikner2, and Domenico Gerardi21Albert-Einstein-Institut Hannover: Max-Planck-Institut für Gravitationsphysik und Universität Hannover, Deutschland — 2EADS Astrium Satellites GmbH, Friedrichshafen, Deutschland

LISA Pathfinder is a drag-free system that will be able to measure a differential acceleration of two freely falling test masses with an accuracy of a few fN/√Hz in the mHz range. It is a technology demonstration mission for the planned gravitational wave detector LISA.

We present the recent progress in the project. The entire optical measurement system has undergone performance tests with so-called Engineering Models that are copies of the real flight hardware. These units have already been verified to be compatible with space applications. The same tests are presently being repeated on the Flight Models at the AEI Hannover.

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