Перегляд за автором "Medvedev, D.V."

Сортувати за: Порядок: Результатів:

  • Dikiy, N.P.; Dovbnya, A.N.; Lyashko, Y.V.; Medvedeva, E.P.; Medvedev, D.V.; Uvarov, V.L. (Вопросы атомной науки и техники, 2007)
    The method of ¹⁹⁵mPt production on linear electron accelerators and cyclotron of NSC KIPT are described. The method of ¹⁹⁵mPt separation from the irradiated samples are developed. The methods of cisplatin synthesis with ...
  • 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 ...
  • 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 ...
  • Dikiy, N.P.; Dovbnya, A.N.; Kutovoy, V.A.; Kutovoy, S.V.; Medvedeva, E.P.; Medvedev, D.V.; Borisenko, V.N. (Вопросы атомной науки и техники, 2006)
    An electron accelerator has been applied to radiation technology for extraction of grape polyphenols after the grape being preliminary dried in vacuum. It is shown that the extraction process is more effective while the ...
  • Dikiy, N.P.; Medvedev, D.V.; Onishchenko, I.N.; Pushkarev, S.S. (Вопросы атомной науки и техники, 2006)
    A nuclear method for determination of energy and intensity of a proton beam is proposed to use for investigation of collective ion acceleration by space charge waves arisen in an intense relativistic electron beam (REB) ...
  • Dikiy, N.P.; Dovbnya, A.N.; Lyashko, Y.V.; Medvedeva, E.P.; Medvedev, D.V.; Uvarov, V.L.; Gritsan, L.D.; Onishchenko, N.I. (Вопросы атомной науки и техники, 2008)
    195mPt has been obtained in reaction ¹⁹⁷Au(g,np)¹⁹⁵mPt on the electron linear accelerator with energy 40 MeV and current 10 mA. To produce ¹⁹⁵mPt from a target of gold the extractor such as Kuchera-Shtoly was needed. The ...
  • Chupikov, P.T.; Medvedev, D.V.; Onishchenko, I.N.; Panasenko, B.D.; Prokopenko, Yu.V.; Pushkarev, S.S.; Faehl, R.J.; Yegorov, A.M. (Вопросы атомной науки и техники, 2002)
    The first section of the collective ions acceleration based on simultaneous temporal and spatial modulation of relativistic electron beam (REB) was studied experimentally. The virtual cathode was originated in the ...
  • Kopiychenko, D.Yu.; Onishchenko, I.N.; Sotnikov, G.V.; Pushkarev, S.S.; Prokopenko, Yu.V.; Chupikov, P.T.; Medvedev, D.V. (Вопросы атомной науки и техники, 2004)
    The electrodynamics analysis of topography of magnetic fields originating in spatially periodic system is carried out. The system under investigation is the solenoid inside which rings made from materials differ in electric ...
  • Dikiy, N.P.; Kutovoy, V.A.; Kutovoy, S.V.; Lyachko, Yu.V.; Medvedeva, E.P.; Medvedev, D.V.; Nikolaenko, A.A.; Onishchenko, N.I.; Uvarov, V.L.; Fedorets, I.D.; Grytsan, L.D. (Вопросы атомной науки и техники, 2004)
    Development of the combined technologies of drying allows one to speed up the process of moisture moving away from the dried material and to decrease the energy consumption per the production unit. The composition of macro- ...
  • 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 ...
  • 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 ...
  • Chupikov, P.T.; Medvedev, D.V.; Onishchenko, I.N.; Panasenko, B.D.; Prokopenko, Yu.V.; Pushkarev, S.S.; Yegorov, A.M. (Вопросы атомной науки и техники, 2004)
    The conception, proposed by Lymar, Khizhnyak, and Belikov, to use collective electromagnetic fields of space charge excited in high-current relativistic electron beam (REB), modulated in time and space, have been ...
  • Chupikov, P.T.; Medvedev, D.V.; Onishchenko, I.N.; Panasenko, B.D.; Prokopenko, Yu.V.; Pushkarev, S.S.; Faehl, R.J.; Yegorov, A.M. (Вопросы атомной науки и техники, 2004)
    Low-frequency modulation of a high-current relativistic electron beam (REB) and acceleration of ions in the first section of a collective ion accelerator was studied experimentally. Low frequency modulation of supercritical ...
  • Chupikov, P.T.; Medvedev, D.V.; Onishchenko, I.N.; Panasenko, B.D.; Prokopenko, Yu.V.; Pushkarev, S.S. (Вопросы атомной науки и техники, 2004)
    The parameters of the intense relativistic electron beam (REB), being a base element of the ion accelerator concept, were measured at the exit of the first section of a collective ion accelerator. The experimental studies ...
  • Dikiy, N.P.; Lyashko, Yu.V.; Medvedeva, E.P.; Katalevskaya, D.S.; Medvedev, D.V.; Parkhomenko, Yu.G.; Yatsuk, M.A.; Fedorets, I.D. (Вопросы атомной науки и техники, 2016)
    Проведено вимірювання питомої активності радіонуклідів у ґрунті, моховинні, лишайниках, листяних деревах та хвойній фітомасі. Вивчені особливості надходження и накопичення радіонуклідів ¹³⁷Cs, ⁴⁰К, ²²⁶Ra та інших у ...
  • Dikiy, N.P.; Dovbnya, A.N.; Lyashko, Yu.V.; Medvedeva, E.P.; Medvedev, D.V.; Uvarov, V.L.; Fedorets, I.D.; Khlapova, N.P.; Bakay, D.S. (Вопросы атомной науки и техники, 2011)
    The chemical reactivity of nanostructural clinoptilolite and γ-hematite which have highly selective for ¹³²Cs sorption from polyethylene surface and for liquid environments are studied. There are different components besides ...
  • Dikiy, N.P.; Dovbnya, A.N.; Lyashko, Yu.V.; Medvedeva, E.P.; Medvedev, D.V.; Uvarov, V.L.; Fedorets, I.D.; Valter, A.A.; Storishko, V.E. (Вопросы атомной науки и техники, 2004)
    The low background nuclear physics techniques were used for measure age geologic samples of micas (biotite, lepidolite, muscovite, phlogopite) by means of detection a gamma radiation from radioisotopes. The nuclear reactions ...
  • Aizatskyi, N.I.; Dikiy, N.P.; Dovbnya, A.N.; Dolzhek, M.A.; Lyashko, Yu.V.; Medvedeva, E.P.; Medvedev, D.V. (Вопросы атомной науки и техники, 2014)
    The efficiently separation of ⁶⁷Cu is achieved by using diantipyrylpropylmethane (DАPPМ). Experimental separation of ⁶⁷Cu from sulphuric solution (1 mol./L) of zinc (2 mol./L) with addition potassium iodide (0.1 mol./L) ...
  • Dikiy, N.P.; Dovbnya, A.N.; Krasnoselskiy, N.V.; Lyashko, Yu.V.; Medvedeva, E.P.; Medvedev, D.V.; Uvarov, V.L. (Вопросы атомной науки и техники, 2016)
    Наночастинки Sm₂O₃ і клиноптилоліту використовувалися для одержання ¹⁵³Sm з високою питомою активністю за допомогою гальмування ядер віддачі з реакції ¹⁵⁴Sm(γ, n)¹⁵³Sm у клиноптилоліті. Після опромі- нення гальмовим ...
  • Dikiy, N.P.; Dovbnya, A.N.; Krasnoselsky, N.V.; Lyashko, Yu.V.; Medvedeva, E.P.; Medvedev, D.V.; Uvarov, V.L.; Fedorets, I.D. (Вопросы атомной науки и техники, 2018)
    ¹⁸F is one of the most important positron emitters which are routinely used in the positron emission tomography (PET). The recoil nuclei method in the ¹⁹F(Ɣ,n)¹⁸F reaction was used for the production of ¹⁸F free carrier. ...