A5041263064- Radiation Detection and Scintillator Technologies
- Luminescence Properties of Advanced Materials
- Atomic and Subatomic Physics Research
- Nuclear materials and radiation effects
- Additive Manufacturing and 3D Printing Technologies
- Medical Imaging Techniques and Applications
- Photopolymerization techniques and applications
- Advanced X-ray and CT Imaging
- Pigment Synthesis and Properties
- Terahertz technology and applications
- Nuclear Physics and Applications
- Injection Molding Process and Properties
- Glass properties and applications
- Fuel Cells and Related Materials
- Advanced Optical Imaging Technologies
- Digital Radiography and Breast Imaging
- Advanced Energy Technologies and Civil Engineering Innovations
- Luminescence and Fluorescent Materials
- Particle Detector Development and Performance
- Advancements in Solid Oxide Fuel Cells
- Advanced ceramic materials synthesis
Kurchatov Institute
2017-2025
Luminescent and scintillation ceramic materials with complex shapes, which can be created by stereolithography 3D printing, are of interest for special phosphor detector applications. Starting powders such ceramics may possess UV absorption bands; therefore, it is important to study the possible influence powders’ luminescent properties on printing process. This paper deals garnet oxides, Y3Al5O12 Gd3Al2Ga3O12—well-known hosts materials. The photopolymerization rates slurries based produced...
Polycrystalline scintillator YAG:Ce was 3D-printed using stereophotolithography and sintered; it has shown light yield 60% higher than single crystal.
This article provides an overview of the latest results in field improving properties multiatomic inorganic oxide compounds for scintillators. A possibility to control spatial distribution nonequilibrium carriers ionization track by creating a compositional disorder crystalline matrix is focus. Managing at nanoscale level creates opportunity efficient energy loss during thermalization, smaller dispersion, and, consequently, more binding into excitons further, increase scintillation yield....
Dense and transparent ceramic samples of a (Gd,Y)3Al2Ga3O12:Ce scintillator were obtained by using stereolithography-based Digital Light Processing (DLP) 3D printing for compacting, subsequent burnout, pressureless sintering. The effects stoichiometric deviations green body compaction methods (uniaxial pressing versus DLP printing) on the optical, luminescent, scintillation properties ceramics analyzed. An excess Y Gd in composition led to an increase transmittance acceleration kinetics....
A method to create compositionally disordered compounds with a high number of cations in the matrices, that utilize cubic spatial symmetry garnet-type crystalline systems is demonstrated. Mixtures powdered materials solely doped Ce were used atomic compositions complexity. Several mixed systems, namely Gd3Al2Ga3O12/(Gd,Y)3Al2Ga3O12, Y3Al5O12/Gd3Al2Ga3O12, and Y3Al5O12/Y3Al2Ga3O12 annealed, compacted sintered air. The evaluated for structural, luminescence, scintillation properties. It was...
GYAGG:Tb (Ce) scintillators have been confirmed to be promising sources of light emission when excited by an intense 150 keV electron beam. The saturation the scintillation yield under such excitation conditions has studied. To explain results obtained, a model that considers Auger quenching mechanism was used. Ce-doped material did not show saturation, whereas moderate 30% drop measured in Tb-doped sample at highest beam intensity ~1 A/cm2. This put forward way exploit scintillator for...
The production of the scintillation ceramics can require utilization phosphorus compounds at certain stages 3D-printing, such as vat polymerization, applied for formation green bodies before sintering. effect additive on microstructure, optical, and parameters Gd1.494Y1.494 Ce0.012Al2Ga3O12 (GYAGG:Ce) obtained by pressureless sintering 1650 °C in an oxygen atmosphere was investigated first time. Phosphorus introduced form NH4H2PO4 into initial hydroxocarbonate precipitate a wide...
After significant increase of the accelerator luminosity throughout High Luminosity phase LHC, charged hadrons and neutrons with fluences higher than 1014 p/cm2 per year in largest pseudo-rapidity regions detectors will cause increased radiation damage materials. Increasing activation experimental equipment make periodical maintenance replacement detector components difficult. Therefore, selected materials for new should be tolerant to damage. Y3Al5O12:Ce (YAG:Ce) crystal was found one most...
Phosphoric acid ester, a typical component of commercial dispersants, affects the functional properties Gd1.494Y1.494Ce0.012Al2Ga3O12 ceramics. In sintered ceramics, residual phosphorus can reach up to 40–70% introduced amount. The admixture located on surfaces particles activates grain growth during sintering and leads formation secondary phases rare-earth phosphates. With increasing concentration, density optical transmittance ceramics decrease. Relatively small amount improve luminescence...
The influence of the structure and properties acrylate monomers on rheology polymerization suspensions containing partially stabilized zirconium dioxide, a dispersant photoinitiator as ceramic filler is investigated. It has been shown that use DISPERBYK 2013 additive makes it possible to obtain 1,6-hexanediol diacrylate, dipropylene glycol diacrylate tripropylene with viscosity value below 5 Pa?s at high (up 41 vol. %) filling TZ-3YS-E powder. possibility using obtained for three-dimensional...