Browsing Zinātniskie raksti (CFI) / Scientific articles by Author "Akilbekov, Abdirash"

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    • The Effect of Fast Kr Ion Irradiation on the Optical Absorption, Luminescence, and Raman Spectra of BaFBr Crystals 

      Akilbekov, Abdirash; Kenbayev, Daurzhan; Dauletbekova, Alma; Polisadova, Elena; Yakovlev, Victor; Karipbayev, Zhakyp; Shalaev, Alexey; Elsts, Edgars; Popov, Anatoli I. (MDPI, 2023)
      In this work, using photoluminescence (PL), optical absorption (OA), Raman spectroscopy (RS), and atomic force microscopy (AFM), the radiation damage of BaFBr crystals irradiated with 147 MeV 84Kr ions to fluences (1010–1014) ...

    • Optical Characteristics of MgAl2O4 Single Crystals Irradiated by 220 MeV Xe Ions 

      Akilbekov, Abdirash; Kiryakov, Arseny; Baubekova, Guldar; Aralbayeva, Gulnara; Dauletbekova, Alma; Akylbekova, Aiman; Ospanova, Zhulduz; Popov, Anatoli I. (MDPI, 2023)
      In In this study, the optical properties of magnesium-aluminate spinel were examined after being irradiated with 220 MeV Xe ions. The research aimed to simulate the impact of nuclear fuel fission fragments on the material. ...

    • Thermoluminescent and Dosimetric Properties of Zirconium Dioxide Ceramics Irradiated with High Doses of Pulsed Electron Beam 

      Nikiforov, Sergey; Dauletbekova, Alma; Gerasimov, Maksim; Kasatkina, Yana; Denisova, Olga; Lisitsyn, Viktor; Golkovski, Mikhail; Akylbekova, Aiman; Bazarbek, Assyl-Dastan; Akilbekov, Abdirash; Popov, Anatoli I. (MDPI, 2023)
      Thermoluminescent (TL) properties of monoclinic zirconium dioxide ceramics were studied in order to assess the possibility of their use for measuring high doses (on the order of kGy) of pulsed electron beams (130 keV). Two ...

    • Vacancy defects in Ga2O3: First-principles calculations of electronic structure 

      Usseinov, Abay; Koishybayeva, Zhanymgul; Platonenko, Alexander; Pankratov, Vladimir; Suchikova, Yana; Akilbekov, Abdirash; Zdorovets, Maxim; Purans, Juris; Popov, Anatoli I. (Multidisciplinary Digital Publishing Institute (MDPI), 2021)
      First-principles density functional theory (DFT) is employed to study the electronic structure of oxygen and gallium vacancies in monoclinic bulk β-Ga2 O3 crystals. Hybrid exchange– correlation functional B3LYP within the ...