Dec 2 – 4, 2015
CERN
Europe/Zurich timezone

TCAD simulation of Low Gain Avalanche Detectors

Dec 3, 2015, 5:00 PM
20m
6/2-024 - BE Auditorium Meyrin (CERN)

6/2-024 - BE Auditorium Meyrin

CERN

6-2-024
114
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Standard (20 min including discussion) Simulations

Speaker

Ranjeet Dalal (University of Delhi)

Description

Recently proposed Low Gain Avalanche Detector (LGAD) designs has been subject of increasing interest within Si sensor community. The LGAD devices fabricated by CNM Barcelona have shown promising characteristics before irradiation. But, after hadron irradiation, a significant degradation of gain has been observed in these devices. These results have not been explained by earlier simulations and are attributed to the possible acceptor removal with irradiation. In University of Delhi, detailed simulation using Silvaco TCAD tool for non-irradiated and irradiated LGAD devices have been carried out. An already published effective two trap bulk damage model is used to simulate the radiation damage. The effect of different design parameters and hadron irradiation on LGAD operations will be discussed.

Author

Ranjeet Dalal (University of Delhi)

Co-authors

Ashutosh Bhardwaj (University of Delhi (IN)) Geetika Jain (University of Delhi (IN)) Kirti Ranjan (University of Delhi (IN))

Presentation materials