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  1. No Access

    Article

    Calculation and Justification of Biological Protection for Hot Cells with Reprocessed-99Mo Volume Enlargement at Karpov Research Institute of Physical Chemistry

    Medical radionuclides irradiated in hot cells emanate from targets irradiated in a reactor. Limitations associated with the maximum dose rate do not allow more than eight targets to be processes simultaneously...

    B. M. Boiko, O. Yu. Kochnov, P. A. Danilov, A. V. Sobolev in Atomic Energy (2022)

  2. No Access

    Article

    Thermohydraulic Calculation of the Maximum Fuel and Water Temperature in the MAK-2 Facility

    The maximum coolant temperature in the VVR-Ts MAK-2 loop facility for the production of 99Mo was analyzed. The calculations showed that adequate accuracy and temperature 96.3°C are attained using more than 106 gr...

    O. Yu. Kochnov, V. V. Kolesov, A. S. Zevyakin, R. V. Fomin in Atomic Energy (2020)

  3. No Access

    Article

    Possibility of Increasing the Number of Experimental Channels in VVR-Ts by Changing the Core Design

    The modernization of the VVR-Ts core by installation of beryllium reflectors was analyzed. Calculations showed that the arrangement of beryllium blocks in six cavities at the core periphery makes it possible t...

    O. Yu. Kochnov, V. V. Kolesov, R. V. Fomin, P. A. Fomichenko in Atomic Energy (2019)

  4. No Access

    Article

    Measurement of the Power Coefficient of Reactivity of VVR-Ts in a Wide Power Range

    The power coefficient of reactivity of VVR-Ts was previously determined only in the range 10–11 MW. The aim of the present work was to determine the power coefficient of reactivity in the range 1–10 MW. The ex...

    V. V. Kolesov, D. S. Samokhin, O. Yu. Kochnov in Atomic Energy (2017)

  5. No Access

    Article

    Determination of the Radiochemical Yield of Fission-Fragment 99Mo In VVR-Ts

    The parameters of the neutron flux in the experimental channels of VVR-Ts are determined. It is shown that to evaluate the 99Mo yield it is necessary to take account of, aside from the neutron flux, the dependenc...

    V. V. Pozdeev, O. Yu. Kochnov, M. A. Markina, A. F. Grachev in Atomic Energy (2016)

  6. No Access

    Article

    Calculation of the temperature in the container unit with a modified design for the production of 99Mo at the VVR-Ts research reactor facility (IVV.10M)

    The temperature regime is calculated for two different designs of containers with uranium-bearing material for the upgraded VVR-Ts research reactor facility (IVV.10M). The containers are to be used in the prod...

    A. A. Kazantsev, V. V. Sergeev, O. Yu. Kochnov in Physics of Atomic Nuclei (2015)

  7. No Access

    Article

    Improvement of the Neutron-Physical Characteristics of the VVR-Ts Reactor by Substituting a Beryllium Reflector for Some Fuel Assemblies in the Core

    The results of computational studies of the possibility of using beryllium reflectors to improve the neutronphysical characteristics of the VVR-Ts reactor, which is used at the Karpov Research Institute of Phy...

    O. Yu. Kochnov, V. V. Kolesov, R. V. Fomin in Atomic Energy (2015)

  8. No Access

    Article

    Production of Medical 99Mo and Molybdenum-Technetium Generators at the karpov Research Institute of Physical Chemistry

    This article is devoted to the development of the production of 99Mo used in nuclear medicine. The stages in the development of the production of 99Mo and molybdenum-technetium generators are shown. Production ha...

    V. V. Pozdeev, O. Yu. Kochnov, A. I. Krasheninnikov, V. I. Stepanov… in Atomic Energy (2014)

  9. No Access

    Article

    Evaluation of characteristics of molybdenum-technetium generators prepared from regenerated uranium at the VVR-ts reactor

    The problem of uranium regeneration from uranium-containing residues after irradiating a uranium target and isolating from it 99Mo for use in nuclear medicine is considered. It is shown to be possible to produce

    A. F. Grachev, V. V. Pozdeev, O. Yu. Kochnov, N. V. Zakharov… in Radiochemistry (2014)

  10. No Access

    Article

    Production of fission 99Mo at the VVR-ts nuclear reactor in a closed-loop process with respect to U

    Technological aspects of 99Mo production from 235U at the VVR-ts nuclear reactor are considered. The nuclear target design with which the formation of liquid and solid wastes is reduced to a minimum and the force...

    O. Yu. Kochnov, V. V. Pozdeev, A. I. Krasheninnikov, N. V. Zakharov in Radiochemistry (2012)

  11. No Access

    Article

    Pharmacokinetics of a new radiopharmaceutical based on alubmin microspheres and palladium-103 and modified by heat and radiation

    The pharmacokinetics of albumin microspheres (AMS) labeled with 103Pd (103Pd-AMS) were studied in healthy mice after intramuscular injections. It was established that increasing the denaturation temperature of al...

    V. M. Petriev, V. K. Shiryaev, V. G. Skvortsov… in Pharmaceutical Chemistry Journal (2011)