Gravitaional wave signel from a simiulated star core collapse explosion (supernova), converted into sound
Album: Science – Sounds of gravitational waves
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Gravitaional wave signel from a simiulated star core collapse explosion (supernova), converted into sound
North tube of Virgo
The 3-km long building of Virgo hosts a vacuum tube of 1.3 m of diameter. The laser beam propagates back and forth inside this tube.
Credits: Cyril Frésillon/Virgo/Photothèque CNRS
Album: Instruments – Infrastructures
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Series of electronic racks (January 2016)
Series of electronic racks with Virgo devices used to control suspensions of minitowers, to acquire the signals from photodiodes and cameras of suspended optical benches, to supply the power to these sensors, to acquire some environmental probe siignals, etc… The digital data acquired in the whole Virgo experiment are routed inside the data network using multiplexers/demultiplerxers located in this room.
Credits: The Virgo collaboration/LAPP
Album: Instruments – Computing/Electronics
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Detection bench electronic racks (January 2016)
Three racks hosting the electronics to control the superattenuator where a bench used to acquire the interference pattern is suspended and the electronics to control the optical elements installed on this bench.
On the background, vacuum enclosure of superattenuators are visible.
Credits: The Virgo collaboration/LAPP
Album: Instruments – Computing/Electronics
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Virgo optical patch panel (January 2016)
Optical fibers are used to acquire and transmit the digital data from sub-systems to sub-systems over the whole Virgo interferometer. Patch panels are used to ease the optical fiber installation.
Electronics racks are visible in reflection on the door.
Credits: The Virgo collaboration/LAPP
Album: Instruments – Computing/Electronics
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Advanced Virgo suspended detection bench (January 2016)
A researcher is tuning the position of a mirror on an optical bench suspended to a superattenuator. The whole vacuum enclosure, when opened for intervention, is a clean room. The white cables are going up all along the superattenuator. They are used to control from remote the orientation of the mirrors, to acquire signals and control the length of a major element, the “output mode cleaner cavity”.
Credits: Cyril Frésillon/Virgo/Photothèque CNRS
Album: Instruments – Laser&Optics
Advanced Virgo suspended optical bench inside its vacuum enclosure (January 2016))
The researcher is tuning the position of a mirror on an optical bench. For Advanced Virgo, new optical benches have been suspended and put in vacuum. The mechanics of the suspension is visible on the top part still opened. On-board electronics is attached below the suspended bench to reduce the number of (white) electrical cables going along the suspension.
Credits: Cyril Frésillon/Virgo/Photothèque CNRS
Album: Instruments – Laser&Optics
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Optical benches where the Virgo laser beam is generated
The laser beam of the Virgo interferometer is generated onto these two optical benches and sent inside the interferometer towards the beam-splitter mirror.
Credits: Cyril Frésillon/Virgo/Photothèque CNRS
Album: Instruments – Laser&Optics
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Optical benches where the Virgo laser beam is generated
The researcher is checking the laser beam alignment on a mirror of an optical bench. The infrared beam is not visible by human eyes, a dedicated visualisation card allows to see the beam position.
Credits: Cyril Frésillon/Virgo/Photothèque CNRS
Album: Instruments – Laser&Optics
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Optical benches where the Virgo laser beam is generated
The researcher is using a tool to visualize the laser beam in the clean room where the laser beam is generated. The Virgo laser light being infrared, it is not visible with naked eyes.
Credits: Cyril Frésillon/Virgo/Photothèque CNRS
Album: Instruments – Laser&Optics
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