Перегляд за автором "Gektin, A.V."

Сортувати за: Порядок: Результатів:

  • Advanced method of scintillator energy resolution test 
    Gektin, A.V.; Suzdal, V.S.; Boyarintsev, A.Yu.; Sobolev, A.V. (Functional Materials, 2019)
    This work is devoted to the development of advanced method of scintillator energy resolution test. Separation of scintillation photons for different groups in accordance with statistical methods allows to extract some ...
  • A small-sized spectrometric detection block of the scintillator-photodiode system for determination of radionuclide localization sites 
    Nekrasov, V.V.; Belogub, V.V.; Borodenko, Yu.A.; Gektin, A.V.; Grinyov, B.V.; Selegenev, E.M. (Functional Materials, 2005)
    A new small-sized spectrometric gamma-radiation detection block of scintillator-photodiode system has been developed. The block is of θ10x60 mm² size and consists of a Csl(TI)-Si PD detector, charge-sensitive amplifier, ...
  • Band structure of LaPO₄ 
    Syrotyuk, S.V.; Chornodolskyy, Ya.M.; Vistovskyy, V.V.; Voloshinovskii, A.S.; Gektin, A.V. (Functional Materials, 2013)
    The calculations of band structure of LaPO₄ crystal of monoclinic and hexagonal lattice symmetry is performed using the PAW formalism and taking into account the strong local correlations in the PBE0 GGA approximation. The ...
  • Calibrator of radioactive preparation doses for nuclear medicine based on CsI(Tl) crystals 
    Borodenko, Yu.A.; Belogub, V.V.; Grinyov, B.V.; Gektin, A.V.; Didenko, A.V.; Selegenev, E.M.; Tarasov, V.A.; Cherevatova, S.Kh.; Deryachenko, Yu.A. (Functional Materials, 2011)
  • Deep traps in KMgF₃ and LiBaF₃ crystals 
    Gektin, A.V.; Shiran, N.V.; Neicheva, S.V.; Krasovitskaya, I.M. (Functional Materials, 2004)
    The influence of the high temperature annealing in air to the deep traps formation in KMgF₃ and LiBaF₃ fluoroperovskites was the subject of this study. An additional absorption and blue emission connected with O²⁻ ions ...
  • Engineering of long length CsI:Tl scintillators for high energy physics 
    Zosim, D.I.; Gektin, A.V. (Functional Materials, 2015)
    It is shown that engineering of long length CsI:Tl scintillators for medium and high energy physics projects significantly depends of the primary performance of scintillation single crystal. In particular statistical study ...
  • Fluctuations of ionizing particle track structure and energy resolution of scintillators 
    Gektin, A.V.; Vasil'ev, A.N. (Functional Materials, 2017)
    The work is devoted to the study of fluctuations in ionizing particle track to the energy resolution deterioration. Reasons of deterioration of energy resolution of scintillators due to relatively rare events of production ...
  • Formation and luminescent properties of MeBr₂—Eu (Me =Sr , Ba ) microcrystals dispersed in NaBr matrix 
    Pushak, A.S.; Vistovskyy, V.V.; Kotlov, A.; Khapko, Z.A.; Vas'kiv, A.P.; Gektin, A.V.; Voloshinovskii, A.S. (Functional Materials, 2013)
    The formation of europium doped MeBr₂ microcrystals Me =Sr , Ba ) embedded in NaBr matrix is revealed in NaBr—MeBr₂—Eu crystalline system. The spectral-luminescent properties of embedded MeBr2—Eu microcrystals are ...
  • Fringe effects in large-area scintillation detectors 
    Boyarintsev, A.Yu.; Gektin, A.V.; Gavrilyuk, V.P.; Koshel, V.I.; Pedash, V.Yu. (Functional Materials, 2009)
    The light reflection conditions near the crystal fringes are known to differ from those in the sample middle part due to additional reflections from the butt surfaces. Such effects may be insignificant (as, for example, ...
  • Intrinsic and impurity luminescence of CaF₂, CaF₂:Eu²⁺ and CaF₂:Eu³⁺ nanoparticles at high energy excitation 
    Zhyshkovych, A.V.; Vistovskyy, V.V.; Mitina, N.E.; Zaichenko, A.S.; Gektin, A.V.; Voloshinovskii, A.S. (Functional Materials, 2014)
    CaF₂, CaF₂:Eu²⁺ and CaF₂:Eu³⁺ nanoparticles were synthesized by the chemical sedimentation method. The study of intrinsic and impurity recombination luminescence of the nanoparticles was carried out using synchrotron ...
  • Large area detector of low-energy gamma radiation 
    Nepokupnaya, T.A.; Ananenko, A.A.; Boyarintsev, A.Yu.; Bobovnikov, A.A.; Gektin, A.V.; Kovalchuk, S.N.; Onufriyev, Yu.D.; Pedash, V.Yu. (Functional Materials, 2017)
    Detectors for registration of low-energy gamma radiation based on plastic scintillator UPS-923A with composite YSO:Ce and CsI:Tl layers were developed. Size and concentrations of granules in the composite scintillators ...
  • Luminescent properties of LaI₃-Ce microcrystals embedded in NaI host 
    Pushak, A.S.; Vistovskyy, V.V.; Demkiv, T.M.; Datsyuk, Yu.R.; Kravchuk, I.M.; Karplyuk, L.T.; Gektin, A.V.; Voloshinovskii, A.S. (Functional Materials, 2015)
    Luminescence-kinetic properties of LaI₃-Ce microcrystals of 1-10 μm size in NaI-LaI₃-Ce system are studied upon 2.5-12 eV excitation using synchrotron radiation. The luminescent properties of cerium centers in the embedded ...
  • Radiation induced defects in M₁₋ₓPrₓF₂₊ₓ (M²⁺ = Ca, Sr, Ba, x = 0.35) solid solutions 
    Boiaryntseva, I.A.; Shiran, N.V.; Gektin, A.V. (Functional Materials, 2012)
    Radiation-induced processes in M₁₋ₓPrₓF₂₊ₓ (M²⁺ = Ca, Sr, Ba, x = 0.35) solid solutions have been studied. It is shown that the radiation coloration of M₀.₆₅Pr₀.₃₅F₂₃₅ crystals is due to the trapping of charge carriers at ...
  • Scintillation characteristics of deformed large-sized NaI crystals 
    Shlyakhturov, V.V.; Gektin, A.V.; Boyarintsev, A.Yu.; Taranyuk, V.I. (Functional Materials, 2013)
    The effect of plastic deformation on defect structure and functional parameters of NaI based crystals and scintillator NaI(Tl) in particular has been studied. Plastic flow modeling in decorated samples as well as in large ...
  • Single detector-dual scintillator anti-Compton probes 
    Rosenfeld, A.B.; Lerch, M.F.L.; Takacs, G.J.; Gektin, A.V.; Perevertailo, V.L. (Functional Materials, 2004)
    Anti-Compton spectrometers have many applications in the fields of safeguards, medicine and security. One of the most important applications is in the location of low energy gamma sources in the presence of high-energy ...
  • ¹S₀-luminescence in Ca₁₋ₓPrxF₂₊ₓ crystals 
    Boiaryntseva, I.A.; Shiran, N.V.; Gektin, A.V.; Stryganyuk, G.B.; Belsky, A.N.; Shimamura, K. (Functional Materials, 2012)
    Luminescence properties of CaF₂:Pr (0.2 mol %) and Ca₀.₆₅Pr₀.₃₅F₂.₃₅ crystals were studied at 10 K. Excitation and emission spectra show two types of the Pr³⁺ centers with the typical ¹S₀ —> 4f² radiative transitions. High ...
  • The heat transfer model for VGF technique with skull layer for halide crystal growth 
    Taranyuk, V.I.; Gektin, A.V.; Kolesnikov, A.V.; Kalaev, V.V. (Functional Materials, 2014)
    The work is devoted to the investigation of the key parameters for reproducible skull technique of NaI based crystals. Combination of math simulation (CGSim software) with experimental measurements of the temperature ...
  • The stress-strain state of deformed NaCI type single crystals with the sample height smaller than the base side 
    Boyarintsev, A.Yu.; Gektin, A.V.; Shlyakhturov, V.V. (Functional Materials, 2006)
    A real modelling of the mass transfer process in a crystal by visualization of the crystal material motion under deformatioin using markers as well as structure studied have revealed inhomogeneity in the stress fields and ...
  • Unidimensional position sensitive detector 
    Gektin, A.V.; Gavrylyuk, V.P.; Zosim, D.I.; Yankelevich, V.L. (Functional Materials, 2005)
    It has been shown that a predetermined distribution of the light yield along the length of scintillator can be achieved by treatment of the side surface of Csl(TI) crystal. A principle and of manufacturing a position ...