SMuK 2023 – scientific programme

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ST: Fachverband Strahlen- und Medizinphysik

ST 5: Physics and Technology for Radiation Detection

ST 5.3: Talk

Wednesday, March 22, 2023, 16:20–16:35, ZEU/0146

Neutron Detection With Coated Semiconductors — Kevin Alexander Kröninger, •Alina Johanna Landmann, Ruben Trimpop, and Jens Weingarten — TU Dortmund University, Department of Physics, Otto-Hahn-Str.4a, 44227 Dortmund

3He is a popular element in neutron detection. However, the world is suffering from an extreme 3He-shortage which increases the need for alternative detection methods. Coated semiconductors represent a promising alternative in high flux particle fields. Typical environments with high particle fluxes are found at (research) reactors. To make use of semiconductor detectors in lower particle flux environments, the detection efficiency has to be increased significantly. In Geant4 simulations, we investigated various neutron converting materials and possible detector layouts capable of increasing the detection efficiency. A first prototype with a single converter layer on top of a silicon sensor was built to investigate the detection principle. Further studies concerning the thin film coating process for the different converting materials have been performed and will be presented.