A.Sh. Georgadze

ORCID: 0000-0003-3512-1497
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Particle physics theoretical and experimental studies
  • Neutrino Physics Research
  • Radiation Detection and Scintillator Technologies
  • Particle Detector Development and Performance
  • Dark Matter and Cosmic Phenomena
  • Astrophysics and Cosmic Phenomena
  • Nuclear Physics and Applications
  • Atomic and Subatomic Physics Research
  • Medical Imaging Techniques and Applications
  • Nuclear physics research studies
  • Muon and positron interactions and applications
  • Nuclear reactor physics and engineering
  • Atmospheric Ozone and Climate
  • Particle accelerators and beam dynamics
  • Superconducting Materials and Applications
  • Luminescence Properties of Advanced Materials
  • Solar and Space Plasma Dynamics
  • Radiation Therapy and Dosimetry
  • Advanced Semiconductor Detectors and Materials
  • Methane Hydrates and Related Phenomena
  • Chemical Reactions and Isotopes
  • Graphite, nuclear technology, radiation studies
  • Quantum, superfluid, helium dynamics
  • Scientific Research and Discoveries
  • Quantum Chromodynamics and Particle Interactions

National Academy of Sciences of Ukraine
1995-2025

Institute for Nuclear Research
2000-2025

University of Tartu
2022-2025

Institute of Physics
2023

Associated Press
2017

University of Florence
2003

High Energy Accelerator Research Organization
1996

National Academy of Sciences
1996

A key task for customs workers is the interception of hazardous, illegal and counterfeit items in order to protect health safety citizens. However, it estimated that only a small fraction cargo inspected an even smaller trafficked goods are detected. Today, most widely used technology scanning vehicles, ranging from vans trucks railcars, γ ray X-ray radiography. New technologies required overcome current technological shortcomings, such as inability detect target material composition, usage...

10.3390/instruments7010013 article EN cc-by Instruments 2023-03-20

Final results of the double $\ensuremath{\beta}$ decay experiment, performed with help low background ${}^{116}{\mathrm{CdWO}}_{4}$ crystal scintillators in Solotvina Underground Laboratory, are presented. In particular, revised half-life value two-neutrino 2\ensuremath{\beta} ${}^{116}\mathrm{Cd}$ has been measured as ${T}_{1/2}^{2\ensuremath{\nu}}{=2.9}_{\ensuremath{-}0.3}^{+0.4}\ifmmode\times\else\texttimes\fi{}{10}^{19}\mathrm{yr},$ and new limit on neutrinoless $2\ensuremath{\beta}$...

10.1103/physrevc.68.035501 article EN Physical Review C 2003-09-04

Cosmic ray muon tomography is a promising method for the non-invasive inspection of shipping containers and trucks. It leverages highly penetrating cosmic muons their interactions with various materials to generate three-dimensional images large dense objects, such as inter-modal containers, which are typically opaque conventional X-ray radiography techniques. One key tasks customs border security verifying container declarations prevent illegal trafficking, offers viable solution this...

10.3390/instruments9010001 article EN cc-by Instruments 2025-01-27

We designed and evaluated the performance of a high-resolution large-area detector for positron emission tomography (PET) based on crystal assembly readout using wavelength-shifting (WLS) fibers, offering cost-effective alternative to direct monolithic crystals with photodetectors. The considered geometries were made up 4 × assemblies LuY2SiO5:Ce (LYSO) scintillators, each surface area 50 mm2 thickness 7 or 15 mm, which optically coupled together optical adhesive. was square cross-sections...

10.3390/instruments9010002 article EN cc-by Instruments 2025-02-05

The indication for the $\ensuremath{\alpha}$ decay of ${}^{180}\mathrm{W}$ with a half-life ${T}_{1/2}^{\ensuremath{\alpha}}{=1.1}_{\ensuremath{-}0.4}^{+0.8}(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.3(\mathrm{syst})\ifmmode\times\else\texttimes\fi{}{10}^{18}$ yr has been observed first time help superlow background ${}^{116}{\mathrm{CdWO}}_{4}$ crystal scintillators. In conservative approach lower limit on established as...

10.1103/physrevc.67.014310 article EN Physical Review C 2003-01-22

A new phase of a ${}^{116}\mathrm{Cd}$ double \ensuremath{\beta} decay experiment is in progress the Solotvina Underground Laboratory. Four enriched ${}^{116}{\mathrm{CdWO}}_{4}$ scintillators with total mass 339 g are used setup, whose active shield made 15 natural ${\mathrm{CdWO}}_{4}$ crystals (20.6 kg). The background rate energy interval 2.5--3.2 MeV 0.03 counts/yr kg keV. half-life for 2\ensuremath{\nu}2\ensuremath{\beta} measured as...

10.1103/physrevc.62.045501 article EN Physical Review C 2000-09-06

The SilentBorder project aims to develop and construct a new high-technology scanner for the identification of hazardous illegal goods hidden in trucks sea containers.The will enable scanning shipping containers or cargo is based on muon tomography, technology that uses natural cosmic ray muons therefore inherently safe people.We report development simulation reconstruction framework aimed at optimizing geometry detector exploring feasibility CRT real smuggling scenarios using simulated...

10.31526/jais.2024.482 article EN 2024-01-01

Abstract In recent years, there have been ongoing efforts to improve screening technologies security and prevent terrorist threats. The most widely used for scanning shipping containers are gamma X-ray radiography, which can be harmful operators the environment. Muon tomography systems considered as a potential tool enhance border threats or smuggling, especially in context of container inspections. uses naturally occurring cosmic ray muons create detailed images inside objects, such...

10.1088/1748-0221/19/07/c07004 article EN cc-by Journal of Instrumentation 2024-07-01

We designed and evaluated performance of a high resolution large-area detector for positron emission tomography (PET) based on crystal assembly readout using wavelength-shifting (WLS) fibers, offering cost-effective alternative to the direct monolithic crystals with photodetectors. The considered geometries are made up 4×4 LuY2SiO5:Ce (LYSO) scintillators, each surface area 50×50 mm2 thickness 7 or 15 mm optically coupled together optical adhesive. is orthogonal fibers square cross-section...

10.20944/preprints202412.2441.v1 preprint EN 2024-12-30

Abstract Cosmic ray muon tomography is considered a promising method for the non-invasive inspection of shipping containers and trucks. It utilizes highly penetrating cosmic-ray muons their interactions with various materials to generate three-dimensional images large dense materials, like inter-modal containers, typically not transparent conventional X-ray radiography techniques. The commonly used methods imaging are based on scattering or absorption-transmission data analysis. Due...

10.1088/1748-0221/19/10/p10033 article EN cc-by Journal of Instrumentation 2024-10-01

Abstract Traditional X-ray scanning systems for cargo use ionising radiation which can be harmful to operators and the environment requires shielding. Fully passive muon tomography is a promising alternative or complementary approach scanners. Muon non-invasive technique that uses naturally occurring cosmic-ray muons their scattering in various materials create images of trucks containers without applying radiation. Muons are high-energy particles produced when primary cosmic rays collide...

10.1088/1748-0221/18/12/c12014 article EN cc-by Journal of Instrumentation 2023-12-01

Cosmic rays interacting with the atmosphere result in a flux of secondary particles including muons and electrons. Atmospheric ray tomography (ART) uses electrons for detecting objects their composition. This paper presents new methods proof-of-concept system developed ART low-Z materials. We introduce Particle Track Filtering (PTF) Multi-Modality Tomographic Reconstruction (MMTR) methods. Based on Geant4 models we optimized system, parameters PTF MMTR. plastic scintillating fiber arrays...

10.48550/arxiv.2102.12542 preprint EN cc-by arXiv (Cornell University) 2021-01-01

Total-body positron emission tomography (PET) instruments are medical imaging devices that detect and visualize metabolic activity in the entire body. The PET scanner has a ring-shaped detector surrounds patient detects gamma rays emitted by tracer as it decays. Usually these detectors made up of scintillation crystals coupled to photodetectors convert light produced crystal into electrical signals. Jagiellonian Positron Emission Mammograph (J-PEM) is first J-PET prototype module based on...

10.5604/01.3001.0054.1942 article EN Bio-Algorithms and Med-Systems 2023-12-31
Coming Soon ...