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Št. zadetkov: 7
Superfocusing of channelled protons – anharmonic oscillation model
Žiga Šmit, Esther Punzón Quijorna, Sabina Markelj
Izvirni znanstveni članek
Oznake: superfocusing;channeled protons;
Focusing of channelled ions just below the crystal surface, known as superfocusing, was treated analytically as a combination of straight movement along the channel axis and perpendicular oscillations of an anharmonic oscillator. The anharmonic term in the channel potential is responsible for disper ...
Leto: 2026 Vir: Institut Jožef Stefan (IJS)
Unveiling the radiation-induced defect production and damage evolution in tungsten using multi-energy Rutherford backscattering spectroscopy in channeling configuration
Sabina Markelj, Janez Zavašnik, Esther Punzón Quijorna, Andreja Šestan, Mitja Kelemen
Izvirni znanstveni članek
Oznake: presevna elektronska mikroskopija;tungsten;defects;Rutherford backscattering spectroscopy in channeling configuration;displacement damage;molecular dynamic simulations;transmission electron microscopy;
Radiation-induced defect production in tungsten was studied by a combination of experimental and simulation methods. The analysis of structural defects was performed using multi-energy Rutherford backscattering spectroscopy in channeling configuration (multi-energy C-RBS). To create different micros ...
Leto: 2024 Vir: Institut Jožef Stefan (IJS)
ǂA ǂnew experimental system for studying defects and deuterium lattice location in single crystals by ion beam methods
Esther Punzón Quijorna, Mitja Kelemen, Roberto Galende-Pérez, Primož Vavpetič, Primož Pelicon, Sabina Markelj
Izvirni znanstveni članek
Oznake: Tandetron;channeling;
A high-precision 5-axis goniometer has been installed and commissioned at the INSIBA end station of the 2 MV Tandetron accelerator at the Jožef Stefan Institute. The system provides three translational and two rotational degrees of freedom with an angular resolution of 0.01°, enabling precise sample ...
Leto: 2026 Vir: Institut Jožef Stefan (IJS)
Microstructural analysis of tungsten single crystals irradiated by MeV W ions
Janez Zavašnik, Andreja Šestan, Thomas Schwarz-Selinger, Esther Punzón Quijorna, Mitja Kelemen, Jan Predrag, Sabina Markelj
Izvirni znanstveni članek
Oznake: obsevanje s težkimi ioni;strukturne poškodbe;heavy-ion irradiation;structural defects;
We investigated the microstructural evolution of W(111) single crystals under high-energy self-ion irradiation at 290 K and 800 K, using complementary characterization techniques, including Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Rutherford backscattering spectrom ...
Leto: 2025 Vir: Institut Jožef Stefan (IJS)
Total Knee replacement with an uncemented porous tantalum tibia component: A failure analysis
Samo K. Fokter, Nenad Gubeljak, Esther Punzón Quijorna, Primož Pelicon, Mitja Kelemen, Primož Vavpetič, Jožef Predan, Luka Ferlič, Igor Novak
Izvirni znanstveni članek
Oznake: totalna kolenska endoproteza;brez cementa;trabekularna kovina;porozni tantal;tibialna komponenta;zlom temeljne plošče brez cementa;total knee arthroplasty;uncemented;cementless;trabecular metal;porous tantalum;tibial component;cementless baseplate fracture;
Porous tantalum has been extensively used in orthopaedic surgery, including uncemented total knee arthroplasty (TKA). Favourable results were reported with earlier monobloc tibial components and the design evolved to modular implants. We aimed to analyse possible causes for extensive medial tibia ...
Leto: 2022 Vir: Fakulteta za strojništvo (UM FS)
Deuterium retention and transport in ion-irradiated tungsten exposed to deuterium atoms
Sabina Markelj, Janez Zavašnik, Andreja Šestan, Thomas Schwarz-Selinger, Mitja Kelemen, Esther Punzón Quijorna, Gabriele Alberti, Mateo Passoni, David Dellasega
Izvirni znanstveni članek
Oznake: deuterium;tungsten;grain boundaries;transport;displacement damage;retention;
The influence of grain boundaries on deuterium (D) retention and transport was investigated in nanocrystalline tungsten (W) by exposing the samples to sub eV D atoms. Thin tungsten films with nanometer-sized grains were produced by pulsed laser deposition on tungsten substrates. Their grain size was ...
Leto: 2024 Vir: Institut Jožef Stefan (IJS)
ǂThe ǂeffect of nanocrystalline microstructure on deuterium transport in displacement damaged tungsten
Sabina Markelj, Thomas Schwarz-Selinger, Mitja Kelemen, Esther Punzón Quijorna, Janez Zavašnik, Andreja Šestan, David Dellasega, Gabriele Alberti, Mateo Passoni
Izvirni znanstveni članek
Oznake: transport;grain boundaries;deuterium;tungsten;displacement damage;
The influence of grain boundaries (GBs) on the deuterium (D) transport and the creation of defects in nanocrystalline tungsten (W) films deposited on a W substrate was studied. Samples with three different grain sizes were produced for this purpose: a sample with a film having nanometer-size grains, ...
Leto: 2023 Vir: Institut Jožef Stefan (IJS)
Št. zadetkov: 7
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