Advanced Silicon Photomultiplier Developments Presented within Horizon Europe INNMEDSCAN and DETMED Projects

On 19 February 2026, a seminar from the “Detector Technologies” series was held at the Institute for Nuclear Research, bringing together researchers onsite and online to discuss recent advances in detector physics.

The keynote lecture, “Modern Status and Prospects for the Development of Silicon Photomultipliers,” was delivered by Professor Ziraddin Sadygov and PhD student Ramil Akberov from Azerbaijan. The presentation reviewed the evolution of solid-state photon detectors from early avalanche MRS microchannel structures to modern SiPM technologies, addressing key challenges such as excess noise and pixel uniformity. Special attention was given to two SiPM architectures: surface-pixel devices and deeply embedded pixel structures with improved photon detection efficiency (PDE) and radiation hardness. Experimental results for a newly developed MAPD sensor were presented and compared with a commercial MPPC device. The new detector demonstrated a PDE (photon detection efficiancy) of 38.5%, exceeding the 32% of the reference sample under identical conditions, while maintaining stable amplitude resolution. The new generation of deeply structured SiPM sensors has been developed within the framework of the EU Horizon Europe projects INNMEDSCAN and DETMED, aimed at advancing radiation and medical imaging technologies.

The seminar highlighted the strong potential of these detectors for future applications in high-energy physics and nuclear medicine, generating active discussion on further optimization and scalability.