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Post date: Jan 17, 2021 5:02:14 AM
Z-paper-658 by Herb Zinser
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https://www.desy.de/research/facilities__projects/petra_iii/index_eng.html
When it was commissioned in 1978, the 2.3-kilometre-long PETRA storage ring was the world’s biggest accelerator. It was initially used to deliver electron-positron collisions for particle physics experiments. Just one year after the accelerator powered up, particle physicists at PETRA made a …
DESY operates one of the world's brightest storage-ring-based X-ray radiation sources: PETRA III offers scientists outstanding opportunities for experiments with X-rays of exceptionally high brilliance. This particularly benefits researchers investigating very small samples or requiring tightly collimated and very short-wavelength X-rays for their experiments – ranging from medical research to nanotechnology.
When it was commissioned in 1978, the 2.3-kilometre-long PETRA storage ring was the world’s biggest accelerator. It was initially used to deliver electron-positron collisions for particle physics experiments. Just one year after the accelerator powered up, particle physicists at PETRA made a groundbreaking discovery. They succeeded in directly observing the gluon for the first time. The gluon is the carrier particle of the strong force, one of the four fundamental forces of nature, which binds the quarks together, the building blocks of all matter.
Brilliant X-ray source
Brilliant X-ray source
After the end of its particle physics career and an intermezzo as pre-accelerator for the even larger HERA ring, the facility was converted into the most brilliant radiation source of its kind.
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Since 2010, (atomic military General Petra trap) PETRA III has been supplying X-ray radiation that is more powerful and tightly focused than anything produced by other storage rings worldwide. The facility offers optimum experimental capabilities at 21 beamlines with 45 measuring stations.
This is also thanks to an unusual
experimental hall: the floor of the nearly 300-metre-long hall „Max von Laue“ is made of the longest concrete slab ever cast in a single piece.
The slab shields the measuring stations from disturbing vibrations,
thus enabling extremely precise experiments.
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