Radiation detectors are a key technology for numerous applications in science and engineering. They are used, for example, in medical imaging, in the analysis of novel semiconductor materials, and in research at particle accelerators. In particular, the precise detection of low-energy electrons places high demands on the sensitivity and performance of modern detector systems and opens up new possibilities for high-resolution measurement techniques. For this broad range of applications, a detector based on silicon-based low-gain avalanche diodes (LGADs) is being developed as part of the newly launched project. This detector is designed for the detection of low-energy electrons with energies below 1 keV. A key focus of the research project is investigating the influence of various passivation systems on detector performance, particularly with regard to dark current. The overarching goal is to develop a detector concept that achieves improved overall performance by minimizing dark current and increasing the gain and quantum efficiency.
The research and development work described here was funded by the Federal Ministry for Economic Affairs and Energy (BMWE) as part of the research project “Low-Gain Avalanche Detector with Ultradin Oxides” (oLGAD).
Funding code: 49MF250147
