GEO 600 and the GEO-HF upgrade program: successes and challenges

Dooley, K.L. et al. (2016) GEO 600 and the GEO-HF upgrade program: successes and challenges. Classical and Quantum Gravity, 33(7), 075009. (doi: 10.1088/0264-9381/33/7/075009)

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Abstract

The German–British laser-interferometric gravitational wave detector GEO 600 is in its 14th year of operation since its first lock in 2001. After GEO 600 participated in science runs with other first-generation detectors, a program known as GEO-HF began in 2009. The goal was to improve the detector sensitivity at high frequencies, around 1 kHz and above,with technologically advanced yet minimally invasive upgrades. Simultaneously, the detector would record science quality data in between commissioning activities. As of early 2014, all of the planned upgrades have been carried out and sensitivity improvements of up to a factor of four at the high-frequency end of the observation band have been achieved. Besides science data collection, an experimental program is ongoing with the goal to further improve the sensitivity and evaluate future detector technologies. We summarize the results of the GEO-HF program to date and discuss its successes and challenges.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Hild, Professor Stefan and Sorazu Lucio, Dr Borja and Hough, Professor James and Strain, Professor Kenneth
Authors: Dooley, K.L., Leong, J.R., Adams, T., Affeldt, C., Bisht, A., Bogan, C., Degallaix, J., Gräf, C., Hild, S., Hough, J., Khalaidovski, A., Lastzka, N., Lough, J., Lück, H., Macleod, D., Nuttall, L., Prijatelj, M., Schnabel, R., Schreiber, E., Slutsky, J., Sorazu, B., Strain, K.A., Vahlbruch, H., Wąs, M., Willke, B., Wittel, H., Danzmann, K., and Grote, H.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Classical and Quantum Gravity
Publisher:IOP Publishing
ISSN:0264-9381
ISSN (Online):1361-6382
Copyright Holders:Copyright © 2016 IOP Publishing
First Published:First published in Classical and Quantum Gravity 33(7): 075009
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
624341Investigations in Gravitational Radiation / Particle Astrophysics Capital equipmentSheila RowanScience & Technologies Facilities Council (STFC)ST/L000946/1S&E P&A - PHYSICS & ASTRONOMY