Speaker
Xiao Yang
(University of Science and Technology of China)
Description
In this talk, the recent progress of the development of the Low-Gain Avalanche Detector (LGAD) at the USTC will be presented. The talk covers production and characterisation of the USTC LGADs . The LGADs, with its internal gain mechanism which can provide a signal with fast rising time, resulting in a time resolution of about 30 ps. The thin active layer reduces the Landau noise and makes it possible to fully deplete the detector after extremely high non-ionizing irradiation fluence (6E15 /cm^2 1 MeV-neq). The HGTD project in the ATLAS Phrase-II upgrade adopts the LGAD as the sensor technology and USTC is involved in the development and optimization of this technology. Several measures, including carbon diffusion and deep gain layer implantation, have been attempted and compared. Now the gain layer acceptor removal rate(c-factor) of USTC sensors is close to the most irradiation-hard sensors produced by the FBK, and is better than sensors from other vendors to date, proving the effectiveness of the strategy.
Primary author
Xiao Yang
(University of Science and Technology of China)
