Charge collection properties of prototype sensors for the LHCb VELO upgrade
Citations Over TimeTop 11% of 2021 papers
Abstract
An extensive sensor testing campaign is presented, dedicated to measuring the charge collection properties of prototype candidates for the Vertex Locator (VELO) detector for the upgraded LHCb experiment. The charge collection is measured with sensors exposed to fluences of up to 8×1015 1 MeV neq cm-2, as well as with nonirradiated prototypes. The results are discussed, including the influence of different levels of irradiation and bias voltage on the charge collection properties. Charge multiplication is observed on some sensors that were nonuniformly irradiated with 24 GeV protons, to the highest fluence levels. An analysis of the charge collection near the guard ring region is also presented, revealing significant differences between the sensor prototypes. All tested sensor variants succeed in collecting the minimum required charge of 6000 electrons after the exposure to the maximum fluence.
Related Papers
- → Analysis of Irradiation Processes for Laser-Induced Periodic Surface Structures(2013)4 cited
- → CRACKING AND EXFOLIATION OF TiO2 FILM IRRADIATED WITH EXCIMER LASER(2008)2 cited
- Research and Implementation for Database Upgrade of Information System(2012)
- Carbon ion irradiation effects on GaAs/Ge solar cells(2007)
- → Effect of irradiation with 132Xe27+ ions at different angles on the critical parameters of second generation HTSC tapes basedon GdBa2Cu3O7–x(2023)