Hanns Gietl is a Research Scientist at Idaho National Laboratory (INL). His researcher focuses on the development of fusion systems including plasma-surface interactions, tritium migration in materials, fusion breeding blanket technology and material characterization. He is a specialist for the design and development of tungsten, tungsten-based composites both for fusion reactor application and various characterization techniques including mechanical testing and microscopical analysis. He joined INL in 2022 after a Postdoctoral Researcher appointment with Oak Ridge National Laboratory in the Radiation Effects and Microstructural Analysis Group and with EUROfusion at the Program Management Unit Power Plant Physics and Technology (PPPT) division. He received his PhD from the Technical University Munich for his work performed at the Max Planck Institute for Plasma Physics in Garching.