Project description

PETRA III will be a new high-brilliance synchrotron radiation source on the DESY site in Hamburg-Bahrenfeld. For a total investment of 225 million €, to be shared by the German Federal Government (90%) and the City of Hamburg (10%), the existing storage ring PETRA has been converted into one of the most brilliant x-ray sources worldwide. After starting the conceptual design in 2002 and the final approval of the project in May 2005, the reconstruction of the storage ring started on July 2, 2007. After less than two years the first positron beam was stored in the machine on April 13th 2009. On July 17th the first monochromatic X-rays were observed in beamline P09. PETRA III will commence user operation in fall 2009.

The webcam image on the left gives an impression of the interior of the new hall. Out of the total number of 14 beamlines with up to 30 experimental stations five have been completed by now in this 280 m long experimental hall.


[more information about PETRA III]

Please click on the photos below to read more about:

"Storage Ring"

The reinstallation of components in the "old" tunnel is in full progress. For example, here you can see two damping wigglers. Damping wigglers are used in storage rings to reduce (i.e. damp) the transverse size of the stored electron beam.

"Beamlines"

Double crystal monochromators are used to filter the synchrotron radiation from the undulators for the subsequent experiments. A prototype device for PETRA III is currently being tested at beamline ID6 of the ESRF (Grenoble, France).

"Buildings"

This picture shows the PETRA III experimental hall's facade and the connecting bridge to building 25f on September 20, 2008.