Time resolution and radiation tolerance of depleted CMOS sensors

Vilella Figueras, Eva (2019) Time resolution and radiation tolerance of depleted CMOS sensors. In: The 27th International Workshop on Vertex Detectors, 2018-10-21 - ?.

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Official URL: http://dx.doi.org/10.22323/1.348.0031

Abstract

Depleted Monolithic Active Pixel Sensors (DMAPS), also known as depleted CMOS sensors, are extremely attractive for particle physics experiments. As the sensing diode and readout electronics can be integrated on the same silicon substrate, DMAPS remove the need for hybridization. This results in thin detectors with reduced production time and costs. To achieve high speed and high radiation tolerance, DMAPS are manufactured in High Voltage (HV) processes on High Resistivity (HR) wafers. Today’s most performant DMAPS are 50 µm thin and have 50 µm x 50 µm cell size with integrated mixed analog and digital readout electronics, 11 ns time resolution and 5 x 1015 1 MeV neq/cm2 radiation tolerance. DMAPS in HR/HV-CMOS have been adopted as the sensor technology for the pixel tracker for the Mu3e experiment and are under consideration for the ATLAS detector Phase-II Upgrade. However, in spite of the major improvements demonstrated by DMAPS, further research to achieve even more performant sensors is needed to realize the full potential of these sensors to meet the most challenging requirements for particle physics experiments planned for the future. This article describes the state-of-the-art of DMAPS in terms of time resolution and radiation tolerance, and presents specific work done by the CERNRD50 collaboration to further develop the performance of these sensors.

Item Type:	Conference or Workshop Item (Unspecified)
Divisions:	Faculty of Science and Engineering > School of Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	04 Feb 2022 10:17
Last Modified:	15 Mar 2024 09:46
DOI:	10.22323/1.348.0031
Related URLs:	Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3148191