Orateur
Description
The CYGNO collaboration is developing a gaseous Time Projection Chamber (TPC) with optical readout, optimized for low-energy nuclear and electronic recoil detection. The detector concept exploits electroluminescence generated during charge multiplication in a triple-GEM stack, which is simultaneously imaged by Active Pixel Sensors based on scientific CMOS technology (≳4 Mpix) and recorded by fast photomultiplier tubes. This dual optical readout enables the measurement of energy deposition, topological track features, and full 3D reconstruction of both position and direction of ionization events, with sensitivity to recoil energies down to a few keV. Such capabilities provide powerful background discrimination and particle identification, essential for rare-event searches. The current R&D program targets the construction of a 1 m³ demonstrator to be operated underground at LNGS. In this contribution, we present results from different prototype detectors, with particular emphasis on the performance of the 50 L system in terms of energy resolution, tracking accuracy and directional sensitivity.
| Title | Development of an optical readout gaseous TPC for the CYGNO experiment |
|---|---|
| Topic | Gas detectors |
