Photocathode studies for robust PICOSEC Micromegas detectors

Contemporary experiments in High Energy Physics (HEP) require precise timing detectors to ensure the accurate reconstruction of particle tracks and identification of the origin points (vertices) of these particles. The PICOSEC MicroMegas (MM) collaboration is working on the development of a precise timing detector based on the MicroMegas technology. The primary objective of this detector is to achieve exceptional timing precision, and it has already demonstrated promising results in the realm of tens of picoseconds. At CERN, the Gaseous Detectors Development (GDD) team is working on multiple PICOSEC MM prototypes in view of developments to make it scalable for broader applications, refining its timing resolution, and enhancing its overall durability. This report details the implementation of the single photoelectron measument and analysis, as well as the procedure used for testing different types of photocathodes, in pursuit of creating a more robust detector.