Перегляд за автором "Lyashko, Yu.V."

Сортувати за: Порядок: Результатів:

  • 99Mo and 67Cu isotope yields under production conditions of NSC KIPT electron accelerator KUT-30 
    Aizatsky, N.I.; Diky, N.P.; Dovbnya, A.N.; Ehst, D.; Lyashko, Yu.V.; Nikiforov, V.I.; Tenishev, A.Eh.; Torgovkin, A.V.; Uvarov, V.L.; Shevchenko, V.A.; Shramenko, B.I. (2010)
    Computer simulation has been used to determine the 99Mo and 67Cu isotope yields, as well as the radiation power absorbed in technological natural Mo- and Zn-based targets of different mass and geometry, and also, the power ...
  • Analysis of uranium mobility and concentration process in objects of environment and patients’ kidney stones in Kharkiv region 
    Dikiy, N.P.; Lisovoy, V.N.; Bereznyak, E.P.; Kolupayev, S.M.; Lyashko, Yu.V.; Medvedeva, E.P.; Medvedev, D.V.; Hodyreva, Y.S. (Вопросы атомной науки и техники, 2021)
    The specific activity of ²³⁵U and content of native uranium for the Kharkiv region in drinking water, soil, roots, the leaf of hydrophyte “Pistia stratiotes” and the samples of kidney stones obtained from patients with ...
  • An estimate of ⁴⁷Sc photonuclear yield in a production target 
    Dikiy, N.P.; Lyashko, Yu.V.; Shevchenko, V.A.; Tenishev, A.Eh.; Uvarov, V.L.; Zakharchenko, A.A. (Вопросы атомной науки и техники, 2020)
    ⁴⁷Sc is considered as a promising beta-emitter for cancer immunotherapy. For its carrier-free production, the ⁴⁸Ti(γ,p) ⁴⁷ Sc reaction in the field of bremsstrahlung radiation of an electron accelerator can be used. On the ...
  • An estimate of cross-section of photo-proton reactions on ⁴⁷⁻⁵⁰Ti isotopes 
    Dikiy, N.P.; Zakharchenko, A.A.; Lyashko, Yu.V.; Uvarov, V.L.; Shevchenko, V.A.; Tenishev, A.Eh. (Вопросы атомной науки и техники, 2022)
    Development of technology of isotope production at an electron accelerator, in particular ⁴⁷Sc by the ⁴⁸Ti(γ,p)⁴⁷Sc reaction, requires accurate data on cross-sections of this and other photo-proton reactions on the titanium ...
  • Anthropogenic radionuclide and trace elements of soil and celandine in Kharkov city 
    Dikiy, N.P.; Lyashko, Yu.V.; Katalevska, D.S.; Parhomenko, Yu.G.; Botova, M.A. (Вопросы атомной науки и техники, 2014)
    Samples of celandine and soil from Kharkiv city territory were researched. Gamma spectrometric measurements have shown that the samples contain natural radionuclides of families of ²³⁸U, ²³⁵U, ²³²Th, and also ⁴⁰K and ...
  • A possibility of photonuclear production of planar ¹⁷⁹Tа sources 
    Dikiy, N.P.; Lyashko, Yu.V.; Rogov, Yu.V.; Uvarov, V.L. (Вопросы атомной науки и техники, 2013)
    Age-specific reduction of the bone mass (osteoporosis) is one of the most progressing human illness throughout the world. Its diagnostic is based on a measurement of the mineral density of bone mass by radiation absorptiometry ...
  • Application of gamma activation analysis for research of Cs and I diffusion into a glassceramic matrix 
    Dikiy, N.P.; Gabelkov, S.V.; Dovbnya, A.N.; Lyashko, Yu.V.; Medvedeva, E.P.; Saenko, S.Yu.; Surkov, A.E.; Tarasov, V.V.; Uvarov, V.L.; Fedorets, I.D.; Holomeev, G.A.; Borovlev, V.I.; Zabolotny, V.D.; Medvedev, D.V. (Вопросы атомной науки и техники, 2006)
    Nuclear reactions ¹³³Cs(γ,n)¹³²Cs, ¹²⁷I(γ,n)¹²⁶I were utilized for research of Cs and I diffusion in glassceramic matrices. The glassceramic matrix was manufactured with the help of hot isostatic pressing at 910°C and ...
  • Cesium, strontium and sodium diffusion in magnesium kalium phosphates system 
    Dikiy, N.P.; Dovbnya, A.N.; Lyashko, Yu.V.; Medvedev, D.V.; Medvedeva, E.P.; Repikhov, O.A.; Saenko, S.Y.; Shkuropatenko, V.A.; Tarasov, R.V.; Fedorets, I.D.; Khlapova, N.P. (Вопросы атомной науки и техники, 2014)
    Nuclear-physical methods have been used for determination of diffusion coefficient of Cs, Na, Sr and Ga in samples on the basis of Ceramicrete which contained simulators of a liquid radioactive waste of "Hanford-1", KW and ...
  • Development and comparison of the methods of automatical searching of peaks in γ-spectra 
    Berezhnoy, A.Yu.; Lyashko, Yu.V. (Вопросы атомной науки и техники, 2019)
    We elaborated the program of γ-spectra processing called "GAMMAPEAKS" which approximates peaks in spectra by auss functions. We included two new algorithms which mark peaks in spectra to the new program version. The peaks ...
  • Ecological aspects of 99Mo/99mTc production at an electron accelerator 
    Dikiy, N.P.; Lyashko, Yu.V.; Uvarov, V.L.; Shlyakhov, I.N.; Malets, Eu.B. (Вопросы атомной науки и техники, 2004)
    The present report deals with experimental investigations into possible processes of accumulation of radioactive by-products (RBPs) during 99Mo/99mTc production at an electron linac. Foils from natural molybdenum (a target) ...
  • Estimation of gross-structure parameters of giant dipole resonance: 2. Experimental testing 
    Dikiy, N.P.; Zakharchenko, A.A.; Lyashko, Yu.V.; Uvarov, V.L.; Shevchenko, V.A.; Tenishev, A.Eh. (Вопросы атомной науки и техники, 2021)
    Experimental testing of a novel technique for determination of width and maximum of excitation function of a photonuclear reaction with dominant giant dipole resonance is conducted. The method is based on measurement of ...
  • Excitation of isomeric low-lying level of nucleus ¹⁸¹Ta by relativistic electrons 
    Dikiy, N.P.; Dovbnya, A.N.; Lyashko, Yu.V.; Nikiforov, V.I.; Uvarov, V.L.; Fedorets, I.D. (Вопросы атомной науки и техники, 2013)
    Influence on efficiency of exciting of the E1-level ¹⁸¹Ta with energy 6.24 keV of neutron-capture reaction and photonuclear processes by means of the processes caused by passage of powerful electron beam through tantalum ...
  • Features of adsorbed chemical elements and their isotopes distribution in iodine air filters FU-1500 of nuclear power plant 
    Neklyudov, I.M.; Dovbnya, A.N.; Dikiy, N.P.; Ledenyov, O.P.; Lyashko, Yu.V. (Вопросы атомной науки и техники, 2013)
    The main aim of research is to investigate the physical features of spatial distribution of the adsorbed chemical elements and their isotopes in the granular filtering medium in the iodine air filters of the type of AU-1500 ...
  • Influence of high-energy electrons irradiation on nanoceramics properties of zirconia 
    Aizatskyi, M.I.; Dikiy, N.P.; Dovbnya, A.N.; Fedorets, I.D.; Kushnir, V.A.; Lyashko, Yu.V.; Medvedev, D.V.; Mytrochenko, V.V.; Onishchenko, I.N.; Perezhogin, S.A.; Pelichatyi, N.M.; Danilenko, I.A.; Konstantinova, T.E. (Вопросы атомной науки и техники, 2013)
    Radiation defects in nanoceramics zirconia were investigated after electron irradiation with energy 41…89 MeV up to doze 2.28…5.7·10¹⁴ electrons/cm². Radioactive isotopes ⁸⁷,⁸⁸Y, ⁸⁸,⁸⁹,⁹⁵Zr, ⁹⁵Nb, ¹⁷⁵Hf are registered after ...
  • Investigation of actinide simulators migration in granite and tuff irradiated by gamma-quanta 
    Dubinko, V.I.; Dovbnya, A.N.; Sayenko, S.Yu.; Dikiy, N.P.; Shevyakova, E.P.; Grytsyna, V.M.; Surkov, A.E.; Bereznyak, E.P.; Lyashko, Yu.V.; Medvedeva, E.P. (Вопросы атомной науки и техники, 2006)
    Granite and tuff specimens have been γ- irradiated to the absorbed doses ranging from 10⁷ to 3.0·10⁸ Gy. Penetration profiles of cerium ¹³⁹Ce (actinide simulator) in granite and tuff specimens (before and after ...
  • Investigation of Chernobyl 4-th unit materials by gamma activation method 
    Dikiy, N.P.; Dovbnya, A.N.; Karnaukhov, I.M.; Lyashko, Yu.V.; Mazilov, A.V.; Shevyakova, E.P.; Tolstolutskiy, A.G.; Uvarov, V.L.; Glygalo, V.N.; Rudya, K.G. (Вопросы атомной науки и техники, 2002)
    Isotope and element content the samples of Chornobyl 4-th wrecking unit materials (concrete fragments and lava-like materials) were investigated by γ-activation method using bremsstrahlung of the electron accelerator. The ...
  • Investigation of granite rocks radiation-chemical durability 
    Dikiy, N.P.; Dovbnya, A.N.; Lyashko, Yu.V.; Medvedeva, E.P.; Sayenko, S.Yu.; Tarasov, R.V.; Uvarov, V.L.; Kholomeyev, G.A.; Shevyakova, E.P.; Fedorets, I.D. (Вопросы атомной науки и техники, 2002)
    Gamma-activation analysis is used to study dynamics of leaching of various elements from granite samples. The sample preliminary irradiation and activation was carried out in the field of bremsstrahlung of electron ...
  • Ion exchange in photoactivated inorganic matters 
    Dikiy, N.P.; Dovbnya, A.N.; Lyashko, Yu.V.; Medvedev, D.V.; Medvedeva, E.P.; Parhomenko, Yu.G.; Uvarov, V.L.; Fedorets, I.D. (Вопросы атомной науки и техники, 2017)
    The effects of monovalent and bivalent impurities on the diffusive mobility sodium, caesium and strontium in magnesium potassium phosphate hexahydrate and clinoptilolite were analysed. It was determined that ratio of ...
  • Kinetics of ¹⁵³Sm oxabiphor in the blood of cancer patients undergoing complex therapy for bone metastasis 
    Dikiy, N.P.; Lyashko, Yu.V.; Medvedeva, E.P.; Bodnar, E.N.; Grushka, A.V.; Krasnoselsky, N.V.; Paskevich, O.N. (Вопросы атомной науки и техники, 2015)
    Concentration ¹⁵³Sm in the blood of patients with bone metastasis after radionuclide therapy was determined. Considerable variation of the content of ¹⁵³Sm in blood of patients with various primary cancers from 10 to 65 ...
  • Mechanisms of morphology death of tumor cell by effect non-radioactive and radioactive ¹⁹⁵ᵐPt-cisplatin 
    Dikiy, N.P.; Lyashko, Yu.V.; Medvedeva, E.P.; Medvedev, D.V. (Вопросы атомной науки и техники, 2021)
    The photonuclear technology of preparation radioactive cisplatin ¹⁹⁵ᵐPt was been developed by the bremsstrahlung from the electron accelerators. In the novel technology, the production of ¹⁹⁵ᵐPt from reaction ¹⁹⁷Au(γ,np)¹⁹⁵ᵐPt ...