1 / 24

Status of GEO600

Status of GEO600. Benno Willke for the GEO600 team. Aspen Meeting Aspen CO, January 2005 LIGO-G050030-00-Z. Sensitivity Improvements. Transition Commissioning - Observing. overnight runs Aug04 – Jan05: 1405h (duty cycle: 93.7%). Central Building. Tube / Trench.

charleen-nigel
Download Presentation

Status of GEO600

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Status of GEO600 Benno Willke for the GEO600 team Aspen Meeting Aspen CO, January 2005 LIGO-G050030-00-Z

  2. Sensitivity Improvements

  3. Transition Commissioning - Observing overnight runs Aug04 – Jan05: 1405h (duty cycle: 93.7%)

  4. Central Building

  5. Tube / Trench

  6. Clean Room / Control Room

  7. Reaction Pendulum

  8. GEO600 optical layout 600m Attenuated to 6W interferometer with dual recycling mode cleaner 12W laser 1% Transmission detector

  9. HPD lock + New MI+SR servo SR bench scattering Sensitivity progress (highlights) Typical S3

  10. Sensitivity – Jan 2005 h(f) [1/sqrt(Hz)] Frequency [Hz]

  11. Sensitivity Change with Heater Power

  12. Amplitude Noise Coupling

  13. PRC 72 * D ( 765Hz) 72 * D ( 765Hz) 119* D (1.26kHz) 119* D (1.26kHz) SRC broad- band 1.86kHz 2.3kHz 1.1kHz 2.2kHz SRC detuned to 1.1 kHz -119 * f -72 * f 0 72 * f 119 * f PRC PRC PRC PRC SR-sidebands SR-sidebands SR-sidebands carrier MI-sidebands broadband 1.1kHz detuned 2kHz detuned Unbalanced Sidebands

  14. Optical Gain

  15. Calibration

  16. optical On-line optical TF measurements P and Q CAL actuator

  17. Calibration progress • On-line calibration of both output quadratures HP and HQ • Work on optimal combination is underway • Estimation of optical parameters in real-time in control room • On-line calibration leads to overnight runs

  18. Combining HP and HQ - result • HQ’ contains almost no signal compared to HP’ • Where noise behaves like cal lines, we have apparent displacement • Useful diagnostic for noise hunting (?)

  19. Overnight Runs – Jan 14th

  20. Noise Projections

  21. Summary & Outlock • GEO600 runs with dual-recycling on large baseline detector including calibration • sensitivity improved by two orders of magnitude since S3-I • data taking over night and on weekends with high duty cycle • next steps: • LSC–S4 science run • increase injected power • increase power recycling gain • improve noise models and increase sensitivity • convert GEO into observatory • GEO-HF

More Related