Speaker
Description
The PICOSEC-Micromegas (PICOSEC-MM) detector is a novel gaseous detector providing precise timing on the order of tens of picoseconds. The precision is achieved by eliminating the time jitter from charged particles in ionization gaps, using UV Cherenkov light emitted in a crystal, and captured by a Micromegas photodetector coupled with a photocathode. Timing resolution below 25 ps for MIPs was demonstrated in single-channel prototypes. This study investigates key aspects, including the search for different resistive technologies, resistive sharing and uRWELL, resilient photocathodes, addressing technological challenges, developing scalable front-end/back-end electronics, as well as research of eco-friendly gas mixtures. New single and multi-channel detector prototypes have been designed to withstand the intense particle flux environment and face timing requirements of possible application scenarios. Test beam campaigns showed improvement in the timing response uniformity reaching 17 ps time resolution, per single-pad level. Various readout options, including custom preamplifiers, fast charge-sensitive preamplifiers, and digitization using SAMPIC, were explored to support multi-channel module readout. The PICOSEC Micromegas detectors have proven able to offer good timing resolution over large detection areas and provide flexible readout granularity for potential spatial resolution, making them an appealing technology for precise timing systems and fast photon detection.
| Primary experiment | DRD1-Collaboration |
|---|
