NEMO

NEMO:  Development of Benchmark Platforms for Nuclear Technology Problems

Description

Reliable experimental data are essential for the development of innovative reactor and fusion technologies. However, few suitable experimental facilities remain available worldwide for this purpose. With the AKR-2 training reactor and the DT neutron generator, TUD possesses two facilities that can be utilized within the NEMO project for the necessary neutron and reactor physics investigations. The project aims to establish a modular experimental infrastructure capable of conducting benchmark and validation experiments.

The focus lies on developing and constructing optimized neutron transmission instruments that enable measurements in the fast neutron energy range (from keV to MeV) at variable sample temperatures up to 800°C. Advancements in detector systems—specifically HPDs and stilbene detectors—enhance measurement accuracy, while the high-temperature sample environment allows for measurements under realistic operating temperatures. These experiments yield energy- and temperature-dependent cross-section data for materials relevant to reactor safety and fusion research—such as iron, nickel, and chromium, as well as salt systems used in innovative reactor designs. The data obtained serve as a basis for validating simulation codes. In parallel with the experiments, digital twins of the experimental setups are created to quantify uncertainties and validate the results.

The project contributes to closing data gaps and fosters the training of the next generation of scientists in nuclear energy technology.