Radiation resistance of Carbon-shield LGADs and comparison with standard carbonated LGADs

30 Nov 2023, 16:40
20m
6/2-024 - BE Auditorium Meyrin (CERN)

6/2-024 - BE Auditorium Meyrin

CERN

120
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Speaker

Marco Ferrero (Universita e INFN Torino (IT))

Description

LGAD sensors with a carbon-enriched multiplication layer are the state-of-the-art in terms of radiation resistance, concerning this specific sensor technology. The presence of carbon allows LGADs to operate, while maintaining unchanged temporal resolution, even after irradiation fluences of 1-2x10^15 neq/cm^2.

Carbonated LGADs have been successfully produced by FBK, CNM and IHEP-IEM. FBK, in EXFLU1 production, has recently produced LGADs with a carbon shield implanted below the gain layer, with the aim to protect the gain layer from bulk defect migration and to further improving their radiation resistance.

In this contribution, the first results obtained on Irradiated Carbon-shield LGADs are presented and compared with those of standard Carbonated LGADs.

Primary author

Marco Ferrero (Universita e INFN Torino (IT))

Co-authors

Alessandro Fondacci (INFN Perugia (IT)) Arianna Morozzi (INFN, Perugia (IT)) Cecilia Hanna (Universita e INFN Torino (IT)) Daniele Passeri (University & INFN, Perugia (IT)) Francesco Moscatelli (IOM-CNR and INFN, Perugia (IT)) Giacomo Borghi (FBK - Fondazione Bruno Kessler (IT)) Giovanni Paternoster (FBK - Fondazione Bruno Kessler (IT)) Leonardo Lanteri (Universita e INFN Torino (IT)) Luca Menzio (Universita e INFN Torino (IT)) Marco Costa (Universita e INFN Torino (IT)) Matteo Centis Vignali (FBK) Maurizio Boscardin (FBK Trento) Nadia Pastrone (Universita e INFN Torino (IT)) Nicolo Cartiglia (INFN Torino (IT)) Robert Stephen White (Universita e INFN Torino (IT)) Roberta Arcidiacono (Universita e INFN Torino (IT)) Roberto Mulargia (University & INFN Turin (IT)) Simona Giordanengo (Universita e INFN Torino (IT)) Tommaso Croci Valentina Sola (Universita e INFN Torino (IT))

Presentation materials