Silicon sensors with resistive read-out: Machine Learning techniques for ultimate spatial resolution

Resistive AC-coupled Silicon Detectors (RSDs) are based on the Low Gain Avalanche Diode (LGAD) technology, characterized by a continuous gain layer, and by the innovative introduction of resistive read-out. Thanks to a novel electrode design aimed at maximizing signal sharing, RSD2, the second RSD p...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2023-02, Vol.1047, p.167816, Article 167816
Main Authors: Tornago, M., Giobergia, F., Menzio, L., Siviero, F., Arcidiacono, R., Cartiglia, N., Costa, M., Ferrero, M., Gioachin, G., Mandurrino, M., Sola, V.
Format: Article
Language:English
Subjects:
AC-LGAD
High Energy Physics
LGAD
Particle tracking detectors
Solid-state detectors
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Summary:Resistive AC-coupled Silicon Detectors (RSDs) are based on the Low Gain Avalanche Diode (LGAD) technology, characterized by a continuous gain layer, and by the innovative introduction of resistive read-out. Thanks to a novel electrode design aimed at maximizing signal sharing, RSD2, the second RSD production by Fondazione Bruno Kessler (FBK), achieves a position resolution on the whole pixel surface of about 8 μm for 200-μm pitch. RSD2 arrays have been tested using a Transient Current Technique setup equipped with a 16-channel digitizer, and results on spatial resolution have been obtained with machine learning algorithms.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2022.167816