Seminars

05.11.2025

Georgy Raikov (NRC “Kurchatov Institute”) "Search for the diffuse supernova neutrino background and solar hep-neutrinos in the Borexino experiment"

The report is devoted to the study of solar hep-neutrinos and diffuse supernova neutrino background (DSNB) in the Borexino experiment. The peculiarities of studying solar hep-neutrinos, which have the highest energy and the lowest flux among all neutrinos from the Sun, will be discussed. Constraints on the hep-neutrino flux are presented, based on Borexino detector data on neutrino-electron elastic scattering and neutrino interaction with carbon nuclei.

30.10.2025

Aidar Ilyasov (National Research Centre "Kurchatov Institute") "Event reconstruction in liquid noble gas particle detectors using machine learning methods"

The report focused on the problem of event detection in experimental setups for dark matter searches. Using the DEAP-3600 detector as an example, it was shown that design features of the experimental setup can lead to a degradation in the quality of event analysis or to the emergence of an additional contribution to the detector's background model.

28.10.2025

V. Kan, E. Gotodetsky "Properties and utilisation of lab-grown diamond"

The report aims to familiarize the audience with the properties of diamonds synthesized in laboratory and industrial settings, the capabilities of JSC "Diatek" (the largest diamond synthesis company in Europe) in the production and processing of diamond materials, and the promising application areas for mono- and polycrystalline diamond.

28.10.2025

M. Eseev "Modification and characterization of diamond plates with electron and proton beams and positrons for creating quantum electromagnetic field sensors"

The report will outline the principles of post-growth engineering of synthesized diamond monocrystals (plates) to create nitrogen-vacancy centers using charged particle beams. It will demonstrate the capabilities of positron annihilation spectroscopy for identifying defects in such plates and present work on the development of quantum measurement devices based on them.

20.10.2025

Dmitry Karlovets (ITMO) "A new tool for accelerator physics: LINAC with twisted electron beams"

Twisted quantum states of particles possess a vortex wave front structure and carry quantized angular momentum along the propagation direction. Such states have already been successfully realized for photons, as well as electrons, neutrons, and ions at nonrelativistic energies.

20.10.2025

Dmitry Gorin (Skoltech) "Interaction of optical radiation with biological objects: learning from nature to help it"

This report will consider the interactions between optical radiation and biological objects. Particular attention will be paid to the main types of elastic scattering, as well as the components of biological objects that determine the scattering and absorption of optical radiation. Examples of the practical application of optical methods in biology and medicine will be given. The report concludes with a discussion of the main trends in the development of modern biophotonics.

08.10.2025

Maksim Maksimov (ITMO) "Diffraction of massive twisted waves by circular and triangular apertures as a method for diagnosing orbital angular momentum"

The report presented a method for diagnosing the orbital angular momentum (OAM) of twisted massive waves, electrons and light ions, based on their diffraction at circular and triangular apertures in the far field.

02.10.2025

A. V. Boikov "SPD experiment data acquisition system"

A new type of data acquisition system is being developed for the SPD experiment, implemented as a triggerless system. The system components provide continuous data streaming and preprocessing for the subsequent operation of the online filter system.

26.02.2025

Nazim Huseynov "Study of the associative production of the Higgs boson with top quarks in the ATLAS experiment at the Large Hadron Collider"

The interaction of the Higgs boson with the heaviest particle of the Standard Model—the top quark—seems promising for the search for new physics beyond the Standard Model (BSM). This interaction is determined by the Yukawa coupling constant. Its complex phase remains unknown to date but can be defined by studying the process of the Higgs boson production in association with a single top quark.

19.02.2025

Mikhail Vasilyevich Lyablin "Interferometer for measuring tilt angles and its application in the interferometric precision laser inclinometer"

A new interferometer for measuring tilt angles is presented. The physical properties of the interferometer and its possible application in physical experiments are determined. A prototype of a precision laser inclinometer based on the interferometer is created. Test data of the interferometric inclinometer are given.

30.01.2025

Oleg Yuryevich Smirnov "Intrinsic energy resolution of organic scintillators"

An overview of the available data on the intrinsic energy resolution of organic scintillators will be presented. It is shown that in the energy range of 50 keV–4 MeV, the contribution of the intrinsic resolution to the full width of the scintillation line falls as 1/E for all data sets and is about 1.5% for electrons with the energy of 1 MeV.