Speaker
Description
System of the Cherenkov counters based on FARICH (Focusing Aerogel RICH) technique today is considered as an main option to provide reliable $\pi/K$-separation in momenta range from 0.5 to 5.5 GeV/c for the SPD (Spin Physics Detector) experiment at the NICA (Nuclotron-based Ion Collider fAcility) collider to be launched in operation at the JINR (Dubna) at the end of 2025. Since 2004 the FARICH technique has beed proposed for the several HEP experiments and now it is under optimisation for the SPD experiment. Parameters of multilayer focusing aerogel radiators were optimised. Several optimised aerogel samples were produced in 2025 and then tested with relativistic electron beams. Beam tests results are in good agreement with simulation results. Main ideas of the optimisation and beam test results are presented. As a position-sensitive detectors for the SPD-FARICH system square MCP (MicroChannel Plates) based PMT with multi-anode readout are considered. Such MCP PMTs were produced in Russia for the first time in 2025. Their design is described. The first results of their main parameters measurements are given as well.
| Position | Senior Resercher |
|---|---|
| Affiliation | Budker Institute of Nuclear Physics |
| Country | Russia |