Feb 19 – 21, 2018
Max-Planck-Institut für Physik, Munich
Europe/Zurich timezone

Radiation Damage Effects on LGADs and Deep Diffused APDs

Not scheduled
Max-Planck-Institut für Physik, Munich

Max-Planck-Institut für Physik, Munich

Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) Föhringer Ring 6 80805 München


Matteo Centis Vignali (CERN)


For their operation at the CERN High Luminosity Large Hadron Collider (HL-LHC), the ATLAS and CMS experiments are planning to implement dedicated systems to measure the time of arrival of minimum ionizing particles with an accuracy of about 30 ps.
The timing detectors will be subjected to radiation levels corresponding up to a 1-MeV neutrons fluence ($\Phi_{eq}$) of $10^{15}$ cm$^{-2}$ for the goal integrated luminosity of HL-LHC of 3000 fb$^{-1}$.
Some of the proposed systems will employ Low Gain Avalanche Detectors (LGADs).
The gain of these detectors lies usually between 5 and 50.

This talk summarizes the results obtained in the characterization of LGADs and deep diffused Avalanche Photodiodes (APDs).
These APDs have a gain of up to 500 and are used for direct particle detection, without the use of radiating materials.
The results obtained with proton-irradiated LGADs and neutron-irradiated APDs irradiated up to $\Phi_{eq} = 10^{15}$ cm$^{-2}$ are reported.

Primary authors

Maria del Mar Carulla Areste (Instituto de Microelectronica de Barcelona IMB-CNM) Matteo Centis Vignali (CERN) Marcos Fernandez Garcia (Universidad de Cantabria (ES)) Michele Gallinaro (LIP Lisbon) Christian Gallrapp (CERN) Bert Gerard Harrop (Princeton University (US)) Eduardo Hidalgo Fort (Universidad de Sevilla (ES)) Changguo Lu Isidre MATEU (CERN) Dr McClish Mickel (RMD) Kirk McDonald (Princeton University) Michael Moll (CERN) Mitchell Franck Newcomer (University of Pennsylvania (US)) Sofia Otero Ugobono (CERN/Universidade de Santiago de Compostela (ES)) Dr Giulio Pellegrini (Centro Nacional de Microelectrónica (IMB-CNM-CSIC) (ES)) Ana Ventura Barroso (University of Barcelona (ES)) Dr Ivan Vila Alvarez (Instituto de Física de Cantabria (CSIC-UC)) Dr Sebastian White (CERN/Princeton University (US))

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