Speaker
Nicolo Cartiglia
(cartiglia nicolo)
Description
LGADs are well known for their excellent temporal resolution, a feature often attributed solely to internal charge multiplication. However, if gain were the only contributing factor, LGADs would exhibit significantly worse timing performance than what is experimentally observed.
In reality, three additional effects—non-uniform ionization, space charge, and gain saturation—play a fundamental role in explaining the temporal resolution of LGADs.
In this contribution, I will review the physical mechanisms that govern signal formation in LGADs and compare experimental results with simulations performed using the Weightfield2 program, demonstrating how each effect contributes to the overall performance.
Author
Nicolo Cartiglia
(cartiglia nicolo)
Co-authors
Anna Rita Altamura
(Università and INFN di Torino)
Federico Siviero
(INFN Torino)
Leonardo Lanteri
(Università Torino / INFN Torino)
Luca Menzio
(CERN)
Marco Ferrero
(INFN Torino)
Robert Stephen White
(INFN di Torino)
Roberta Arcidiacono
(Università Piemonte Orientale / INFN Torino)
Valentina Sola
(Università Torino / INFN Torino)
