Speaker
Description
In modern high-energy and elementary particle physics experiments, the proportion of silicon detector systems is growing. The world's leading experiments: ALICE, ATLAS, CMS at the Large Hadron Collider, STAR at the Relativistic Heavy Ion Collider (RHIC), MPD, SPD at the NICA collider currently use or plan to implement silicon pixel detectors as the basis of their tracking systems. These detectors improve the spatial resolution for reconstructing primary and secondary vertices of short-lived particles and enhance identification efficiency at low transverse momenta. Such capabilities are essential for studies in heavy-flavor physics, charmonium production, the space-time evolution of quark-gluon plasma, and exotic nuclear states. On the other hand, high-energy physics accelerators play an important role in applied research, including radiation materials science and life sciences. In these fields, new fast and radiation-hardness scintillators operating together with silicon photomultipliers (SiPMs) can be used.
The report presents an overview of modern detector technologies utilizing silicon pixel detectors and their applications in experiments at the NICA collider: MPD, SPD, ARIADNA. The results of experimental studies of silicon pixel detector properties will also be presented both in the context of fundamental experiments on the study of superdense nuclear matter in experiments at NICA, and in applied work developing new tomographic devices for hadron therapy. New developments will also be presented for the creation of a relativistic heavy ion beams intensity and composition monitoring system, designed for long-term irradiation facilities.
The reported study was supported by the Russian Science Foundation, project no. № 23-12-00042, https://rscf.ru/en/project/23-12-00042/
