nLGAD gain response to low-penetrating particles

Detecting low-penetrating particles is fundamental for a wide range of applications in the fields of industry, medicine, and pure research. The Low Gain Avalanche Detector built on n-type substrates (nLGAD) is considered a good candidate for that, as it showed to have the potential to detect such pa...

Full description

Bibliographic Details
Authors: Villegas, Jairo, Torres Muñoz, Carmen, Manojlovic, Milos, Jiménez-Ramos, M. C., Moffat, Neil, García López, J., Hidalgo, Salvador
Format: article
Status:Published version
Publication Date:2025
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/379442
Online Access:http://hdl.handle.net/10261/379442
https://api.elsevier.com/content/abstract/scopus_id/85215088190
Access Level:Open access
Keyword:LGAD
X-rays and charged particle detectors
IBIC
Description
Summary:Detecting low-penetrating particles is fundamental for a wide range of applications in the fields of industry, medicine, and pure research. The Low Gain Avalanche Detector built on n-type substrates (nLGAD) is considered a good candidate for that, as it showed to have the potential to detect such particles with high sensitivity while avoiding the high noise levels associated with a traditional avalanche photodetector. An overview of the electrical characterization of the latest nLGAD batch fabricated at the Institute of Microelectronics of Barcelona is presented in this work. Additionally, gain response measurements for light with varying penetration depths in silicon and 600 keV protons are also presented. The results confirm the aforementioned potential of nLGADs to detect low-penetrating particles in silicon. Additionally, it was observed that the gain response of the devices is not only dependent on the penetration depth of the studied particles, but also on the nature and flux of the source.