17–19 Nov 2021
ADEIT
Europe/Zurich timezone

Topics in LGAD designs

18 Nov 2021, 09:10
20m
ADEIT

ADEIT

Plaza Virgen de la Paz, 3. 46001 Valencia, Spain

Speaker

Nicolo Cartiglia (INFN Torino (IT))

Description

In this contribution, I will discuss two possible evolutions of the LGAD design.

  • DC-RSD: up to now, resistive read-out in silicon detectors has been used only in AC-coupled detectors, the so-called AC-RSD or AC-LGAD. I will present here the first attempt to apply resistive read-out to a DC-coupled sensor.

  • LGAD with bias ring: recent beam tests results showed that LGADs suffer destructive break-down if the field in the bulk is above 11V/um. SiPMs manage to survive similar conditions given the presence of quenching resistors. I will present a possible LGAD design that introduces AC-coupled read-out and quenching resistors in each pad. This design should also provide increased stability with respect to floating pads or pads with high currents.

Authors

Federico Siviero (INFN - National Institute for Nuclear Physics) Nicolo Cartiglia (INFN Torino (IT)) Giacomo Borghi (Fondazione Bruno Kessler) Gian-Franco Dalla Betta (INFN and University of Trento) Giovanni Paternoster (Fondazione Bruno KEssler) Luca Menzio (Universita e INFN Torino (IT)) Lucio Pancheri (University of Trento and TIFPA-INFN) Marco Ferrero (Universita e INFN Torino (IT)) Marco Mandurrino (INFN) Marta Tornago (Universita e INFN Torino (IT)) Matteo Centis Vignali (FBK) Maurizio Boscardin (FBK Trento) Roberta Arcidiacono (Universita e INFN Torino (IT)) Valentina Sola (Universita e INFN Torino (IT))

Presentation materials