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Characterization of timing and spacial resolution of novel TI-LGAD structures before and after irradiation


Senger, Matias; Bisht, A; Borghi, Giacomo; Boscardin, Maurizio; Centis Vignali, Matteo; Ficorella, F; Ali, O Hammad; Kilminster, Ben; Macchiolo, A; Paternoster, Giovanni (2022). Characterization of timing and spacial resolution of novel TI-LGAD structures before and after irradiation. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1039:167030.

Abstract

The characterization of spacial and timing resolution of the novel Trench Isolated LGAD (TI-LGAD) technology is presented. This technology has been developed at FBK with the goal of achieving 4D pixels, where an accurate position resolution is combined in a single device with the precise timing determination for Minimum Ionizing Particles (MIPs). In the TI-LGAD technology, the pixelated LGAD pads are separated by physical trenches etched in the silicon. This technology can reduce the interpixel dead area, mitigating the fill factor problem. The TI-RD50 production studied in this work is the first one of pixelated TI-LGADs. The characterization was performed using a scanning TCT setup with an infrared laser and a $^90$Sr source setup.

Abstract

The characterization of spacial and timing resolution of the novel Trench Isolated LGAD (TI-LGAD) technology is presented. This technology has been developed at FBK with the goal of achieving 4D pixels, where an accurate position resolution is combined in a single device with the precise timing determination for Minimum Ionizing Particles (MIPs). In the TI-LGAD technology, the pixelated LGAD pads are separated by physical trenches etched in the silicon. This technology can reduce the interpixel dead area, mitigating the fill factor problem. The TI-RD50 production studied in this work is the first one of pixelated TI-LGADs. The characterization was performed using a scanning TCT setup with an infrared laser and a $^90$Sr source setup.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > Nuclear and High Energy Physics
Physical Sciences > Instrumentation
Uncontrolled Keywords:Instrumentation, Nuclear and High Energy Physics
Language:English
Date:1 September 2022
Deposited On:04 Jan 2023 16:50
Last Modified:28 Jun 2024 01:37
Publisher:Elsevier
ISSN:0168-9002
OA Status:Hybrid
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1016/j.nima.2022.167030
Project Information:
  • : FunderH2020
  • : Grant ID101004761
  • : Project TitleAIDAinnova - Advancement and Innovation for Detectors at Accelerators
  • : FunderHorizon 2020 Framework Programme
  • : Grant ID
  • : Project Title
  • Content: Published Version
  • Language: English
  • Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0)