Irradiation studies of the Resistive AC-coupled Silicon Detector (RSD/AC-LGAD)
Resistive AC-coupled Silicon Detectors (RSDs) are silicon sensors which provide high temporal and spatial resolution. The RSD is a candidate sensor to be used in future tracking detectors with the objective of obtaining ’4D’ tracking where timing information can be used along with spatial hits during track finding. 4D tracking will be an essential part of any future lepton or hadron collider and may even be feasible at the HL-LHC. For applications at hadron colliders, RSD sensors must be able to operate in high fluence environments in order to provide 4D tracking. However, the effects of radiation on RSDs have not been extensively studied. In this study, RSDs were irradiated to 1.0, 2.0, 3 . 5 × 1 0 15 cm −2 1 MeV neutron equivalences with both protons and neutrons. The sensors were then characterized electrically to study the acceptor removal and, for the first time in this doping concentration range, the donor removal. Then, the Transient Current Technique was used to begin investigating the signal charge sharing after irradiation. The results suggest an interesting trend between acceptor and donor removal, which is worthy of further study and could assist in improving radiation hardness of Low Gain Avalanche Diodes (LGADs).
Authors
- M. Ferrero (ORCID: https://orcid.org/0000-0001-9676-8222)
- Luca Menzio (ORCID: https://orcid.org/0000-0002-9697-5608)
- B. Regnery (ORCID: https://orcid.org/0000-0003-1539-923X)
- M. Centis Vignali (ORCID: https://orcid.org/0000-0002-4177-9087)
- L. Grimm
- R. Arcidiacono (ORCID: https://orcid.org/0000-0001-5904-142X)
- Umut Elicabuk
- F. Siviero (ORCID: https://orcid.org/0000-0002-4427-4076)
- N. Cartiglia (ORCID: https://orcid.org/0000-0002-0548-9189)
- Alexander Dierlamm
- Markus Klute
- F. Moscatelli (ORCID: https://orcid.org/0000-0002-7676-3106)
Institutions
- Karlsruhe Institute of Technology (DE)
- Università degli Studi del Piemonte Orientale “Amedeo Avogadro” (IT)
- Fondazione Bruno Kessler (IT)
- Istituto Nazionale di Fisica Nucleare, Sezione di Torino (IT)
- Istituto Officina dei Materiali (IT)
- Istituto Nazionale di Fisica Nucleare, Sezione di Perugia (IT)
Publication Details
- Journal
- Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
- Published
- 2025-06-13
- DOI
- https://doi.org/10.1016/j.nima.2025.170705
- Primary Topic
- Particle Detector Development and Performance
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Alexander von Humboldt-Stiftung
- Dipartimenti di Eccellenza
- Karlsruhe School of Elementary Particle and Astroparticle Physics: Science and Technology, Karlsruhe Institute of Technology
- Instituto Nazionale di Fisica Nucleare
- HORIZON EUROPE Research Infrastructures