DESY PETRA III

DESY PETRA III
Name	PETRA III
Caption	Synchrotron radiation source at DESY
Location	Hamburg
Established	2009
Operator	Deutsches Elektronen-Synchrotron
Type	Synchrotron light source
Energy	6 GeV
Circumference	2.3 km
Status	Operational

DESY PETRA III is a high-brilliance synchrotron radiation facility located at the Deutsches Elektronen-Synchrotron in Hamburg, serving international researchers from fields such as materials science, biology, chemistry, and physics. The source delivers intense X-ray beams used by user teams from universities, research centres, and industry partners including those linked to the Max Planck Society, Helmholtz Association, and European XFEL. It operates within a scientific ecosystem connecting laboratories like the European Molecular Biology Laboratory, the Paul Scherrer Institute, and CERN.

Overview

PETRA III functions as a third-generation synchrotron radiation source producing high-brilliance hard X-rays for experimental stations affiliated with institutions such as the Max Planck Society, Helmholtz Association, and European XFEL. The circulating electron beam is accelerated by injector systems similar to those used at facilities like DESY and interfaces with infrastructure comparable to the Swiss Light Source and ESRF. Beamtime allocation involves peer review managed by committees with members from organizations including Deutsches Elektronen-Synchrotron, European Research Council, and major universities such as University of Hamburg and Technical University of Munich. The facility supports collaborative networks connecting laboratories like Helmholtz-Zentrum Berlin, Forschungszentrum Jülich, and Lawrence Berkeley National Laboratory.

History and Development

The site evolved from the original PETRA storage ring that contributed to particle physics discoveries associated with collaborations like JADE Collaboration and Mark-J Collaboration, interacting historically with laboratories such as CERN and DESY. Upgrades and conversions were guided by strategic plans from bodies including the Bundesministerium für Bildung und Forschung and the European Strategy for Particle Physics, with scientific input from researchers affiliated with Max Planck Institute for Metal Research and Fraunhofer Society. Major milestones involved engineering teams from firms linked to projects at SLAC National Accelerator Laboratory and Argonne National Laboratory, and workshop collaborations with universities such as RWTH Aachen University and TU Dresden.

Accelerator Design and Beamlines

The accelerator complex comprises injector linacs and booster rings reminiscent of designs at SPring-8, APS (Advanced Photon Source), and Diamond Light Source, integrating magnet lattices and RF systems developed with input from institutes like Paul Scherrer Institute and Budker Institute of Nuclear Physics. PETRA III’s storage ring delivers a 6 GeV electron beam with a circumference comparable to designs used at ESRF and SOLEIL, feeding beamlines that include hard X-ray undulator stations analogous to those at Spring-8 and APS. Beamline instruments host experimental endstations for macromolecular crystallography, coherent diffraction imaging, and spectroscopy, attracting users from European Molecular Biology Laboratory, Max Planck Institute for Biophysical Chemistry, and industrial partners such as BASF and Siemens. Control systems incorporate technologies similar to EPICS used at FNAL and beam diagnostics developed in collaboration with CERN and Brookhaven National Laboratory.

Scientific Research and Applications

Research spans structural biology, nanoscience, catalysis, and condensed matter physics, aligning with programs at European Molecular Biology Laboratory, Max Planck Institute for Medical Research, and Helmholtz-Zentrum Berlin. Macromolecular crystallography projects connect to initiatives at Wellcome Trust, NIH, and pharmaceutical companies including Roche and Novartis. Materials science studies engage researchers from Imperial College London, ETH Zurich, and Massachusetts Institute of Technology to investigate superconductors, perovskites, and battery materials relevant to work at Oak Ridge National Laboratory and Argonne National Laboratory. Environmental and cultural heritage studies partner with museums like the British Museum and institutions such as Fraunhofer Society for non-destructive analysis. Collaborative programs include joint projects with European Synchrotron Radiation Facility, MAX IV Laboratory, and Canadian Light Source.

Operation and Facility Infrastructure

Operational management is conducted by personnel affiliated with Deutsches Elektronen-Synchrotron, with governance input from stakeholders like Federal Ministry of Education and Research and advisory panels including representatives from European Research Council and national academies such as the German National Academy of Sciences Leopoldina. Facility infrastructure integrates cryogenic systems similar to those at European XFEL and vacuum technology developed with partners like Pfeiffer Vacuum and VDL Groep. Safety, training, and user support draw on standards from International Atomic Energy Agency and collaborations with universities including University College London and Heidelberg University. Data management and computing align with grid resources used by CERN and the European Grid Infrastructure, and beamtime scheduling coordinates with international user offices at institutions like Diamond Light Source and Paul Scherrer Institute.

Upgrades and Future Plans

Planned enhancements mirror upgrade paths pursued by facilities such as ESRF-EBS, APS-U, and MAX IV and involve improvements to magnet lattices, insertion devices, and beamline instrumentation in collaboration with vendors and institutes like Bruker, ASML, and Fraunhofer Institute for Applied Optics and Precision Engineering. Strategic roadmaps have been discussed with stakeholders including the Helmholtz Association, European XFEL, and the German Research Foundation, and aim to maintain competitiveness with future light sources such as SPring-8-II and next-generation free-electron lasers like European XFEL and LCLS-II. International partnerships are expected to involve universities such as University of Oxford, Stanford University, and Tsinghua University to broaden scientific programs and technology transfer.

Category:Synchrotron radiation facilities Category:Deutsches Elektronen-Synchrotron