# High-accuracy 4D particle trackers with Resistive Silicon Detectors (AC-LGADs)

- Institution: CERN
- Department: Conferences
- Speaker: Roberta Arcidiacono
- Year: 2021
- Language: English
- Subjects: Physics, Engineering
- Source: [CERN](https://videos.cern.ch/record/3017812)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Future particle trackers will have to measure concurrently position and time with unprecedented resolutions, approximately 5 microns and 10 ps respectively. A promising good candidate are the AC-LGADs, silicon sensors of novel design, with internal gain and an AC-coupled resistive read-out to achieve signal sharing among pads. This design leads to a drastic reduction of read-out channels, has an intrinsic 100% fill factor, and adapts easily to any read-out geometry. I will present the challenges in the design, the signal formation, recent test results, and the reconstruction techniques that exploit the distributed nature of the signal, including machine learning..

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## Lectures

1. [High-accuracy 4D particle trackers with Resistive Silicon Detectors (AC-LGADs)](https://invisiblenetwork.ai/learn/cern/3017812/2569e3337f08), 24 min (CERN's player)