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Original version
Hild, S.; Grote, H.; Smith, J.R.; Hewitson, M.: Towards gravitational wave astronomy: Commissioning and characterization of GEO600. In: Journal of Physics: Conference Series 32 (2006), Nr. 1, S. 66-73. DOI: https://doi.org/10.1088/1742-6596/32/1/011
During the S4 LSC science run, the gravitational-wave detector GEO600, the first large scale dual recycled interferometer, took 30 days of continuous data. An instrumental duty cycle greater than 96% and a peak sensitivity of 7 × 10-22/√Hz around 1 kHz were achieved during this time. Detector commissioning and characterization work are essential to prepare the worldwide network of gravitational-wave detectors for future extended science runs. This paper describes the detector commissioning that was done in the run-up to S4. The focus is set on techniques used for the identification and removal of limiting noise sources. Furthermore we give some examples for the detector characterization work of GEO600.