A consortium led by Focused Energy is developing the world's first laser-driven neutron source for industrial use. Known as LDRS (Laser-Driven Radiation Sources), this technology enables non-destructive examinations that can even see through and into thick steel or concrete walls. The partners in the research project include the Fraunhofer Institute for Laser Technology ILT, the Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Photonis Germany, TRUMPF and TU Darmstadt. RWE is providing premises at the Biblis site for the project. The Federal Ministry of Education and Research is supporting the project with 20 million euros.
The project, called PLANET, aims to develop a laser neutron source that can examine nuclear waste containers non-destructively. This technology represents a revolutionary alternative to conventional methods that rely on large particle accelerators. The new LDRS method, on the other hand, enables a compact, cost-effective solution that can precisely illuminate large structures such as bridges or shipping containers as well as sealed containers.
Innovative laser technology is the key
At the heart of the new technology is a neutron source powered by a high-power laser. This accelerates ions, which then hit a converter and generate neutrons. The laser, which is being developed by TRUMPF, Fraunhofer ILT and Focused Energy, can fire up to 100 shots per second. It uses a self-renewing target developed in collaboration with TU Darmstadt. Compared to conventional particle accelerators, which require hundreds of meters of distance, the laser performs this task in just a few millimeters.
In addition, Photonis Germany is developing a large-area detector that captures the neutron and X-ray beams produced and generates high-resolution images from them. This imaging makes it possible to draw conclusions about the condition and composition of containers.
Pilot project in Biblis
RWE is providing a building at the site of the former Biblis nuclear power plant, which is being converted into a research laboratory and the first pilot plant for this technology. The laser-based neutron source is to be tested here and further developed for industrial use. Focused Energy is taking on the role of system integrator and using the patented LDRS process to gain valuable insights into the nature and condition of materials.
