PETRA IV: the ultralow-emittance source project at DESY

Research output: Contribution to journalArticle


The PETRA IV project aims at upgrading the present synchrotron radiation source PETRA III at DESY into an ultralow-emittance source. Being diffraction limited up to X-rays of about 10 keV, PETRA IV will be ideal for three-dimensional X-ray microscopy of biological, chemical and physical processes under realistic conditions at length scales from atomic dimensions to millimetres and time scales down to the sub-nanosecond regime. In this way, it will enable groundbreaking studies in many fields of science and industry, such as health, energy, earth and environment, mobility and information technology. The science case is reviewed and the current state of the conceptual design is summarized, discussing a reference lattice, a hybrid multi-bend achromat with an interleaved sextupole configuration based on the ESRF-EBS design, in more detail as well as alternative lattice concepts.


  • Christian G. Schroer
  • Ilya Agapov
  • Werner Brefeld
  • Reinhard Brinkmann
  • Yong Chul Chae
  • Hung Chun Chao
  • Mikael Eriksson
  • Joachim Keil
  • Xavier Nuel Gavaldà
  • Ralf Röhlsberger
  • Oliver H. Seeck
  • Michael Sprung
  • Markus Tischer
  • Rainer Wanzenberg
  • Edgar Weckert
External organisations
  • German Electron Synchrotron (DESY)
  • University of Hamburg
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Accelerator Physics and Instrumentation


  • diffraction-limited storage ring, PETRA IV, ultralow-emittance source
Original languageEnglish
Pages (from-to)1277-1290
Number of pages14
JournalJournal of Synchrotron Radiation
Issue number5
Publication statusPublished - 2018
Publication categoryResearch