The German Federal Ministry of Education and Research (BMBF) has officially confirmed PETRA IV is participating in the “National Prioritization Procedure for Large-scale Research Infrastructures. A team from DESY has prepared a short concept according to the BMBF’s specifications. The concept of the conversion of PETRA III into a state-of-the-art 4th generation X-ray light source is entitled: “PETRA IV – the ultimate 4D X-ray microscope”. The next major milestone for PETRA IV will be the approval of the overall project. A funding commitment by mid-2026 at the latest is important for further planning to avoid major delays in implementation. As the shortlist is not linked to a funding commitment, it will be up to the future government to provide the funding. DESY is ready to realise PETRA IV on time and within budget. The project team of about 50 people has worked out the technical design and has already completed other important planning steps. Thanks to start-up funding, a preparatory programme was launched in September 2024. As a result, the planning and construction of prototypes for PETRA IV are progressing. Thanks to the advanced stage of planning, PETRA IV’s construction can start immediately after approval. Further preparatory work will take place between 2027 and 2029. The existing PETRA III complex is scheduled to be shut down in December 2029. The first light from PETRA IV is expected in 2032.
Read more on DESY website
Image: Visualisation of the future PETRA IV tunnel
Credit: Science Communication Lab, DESY


