# Response of AC-coupled Low Gain Avalanche Detectors to Ionizing and Non-ionizing Radiation Damage

## TL;DR

This paper investigates how AC-coupled low gain avalanche detectors respond to ionizing and non-ionizing radiation, focusing on changes in electrical properties relevant for future physics and medical applications.

## Contribution

It provides new insights into radiation-induced damage effects on AC-coupled low gain avalanche detectors, including acceptor removal and resistivity changes.

## Key findings

- Radiation causes acceptor removal in detectors.
- Resistivity between guard ring and active area changes post-irradiation.
- Leakage current and depletion voltages are affected by radiation exposure.

## Abstract

Low gain avalanche diodes with DC- and AC-coupled readout were exposed to ionizing and non-ionizing radiation at levels relevant to future experiments in particle, nuclear, and medical physics and to astrophysics. Damage-related change in their acceptor removal constants and in the resistivity of the region between the guard ring and the active area are reported, as is change in the leakage current and depletion voltages of the active volumes.