Speaker
Description
Radiation tolerance of Low Gain Avalanche Detectors (LGADs) is one of the major challenges in the development of precise timing tracking detectors for future hadron collider experiments. A widely accepted hypothesis for accepter removal attributes the deactivation of implanted boron to the formation of boron-oxygen complexes, which introduce donor-like defect levels. To investigate the role of oxygen contamination, prototype sensors with varying concentration of oxygen were fabricated. In addition, the Partially Activated Boron (PAB) method — which aims to reduce oxygen-induced defects by cleaning oxygen with inactive boron — was applied to some samples. These prototypes were irradiated, and the accepter removal coefficients were evaluated and compared across different samples. In this talk, I will present the results from these new prototypes, with a focus on the correlation between oxygen contamination and accepter removal behavior.
| Type of presentation (in-person/online) | online presentation (zoom) |
|---|---|
| Type of presentation (I. scientific results or II. project proposal) | I. Presentation on scientific results |
