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Pavlov S.V.,State Science Center Research Institute for Atomic Reactors s
Atomic Energy | Year: 2011

The effect of fuel burnup in VVER-1000 fuel elements on the utilization effectiveness of ultrasonic detection of leaky fuel elements is examined. It is determined that the limitations of this method are due to the interaction of fuel-element cladding with the fuel pellets. Threshold for fuel burnup in VVER-1000 fuel elements with E-110 alloy cladding, determining the application limits of ultrasonic detection of leaky fuel elements in fuel assemblies, is determined. © 2011 Springer Science+Business Media, Inc.


Ignatiev V.V.,RAS Research Center Kurchatov Institute | Feynberg O.S.,RAS Research Center Kurchatov Institute | Zagnitko A.V.,RAS Research Center Kurchatov Institute | Merzlyakov A.V.,RAS Research Center Kurchatov Institute | And 6 more authors.
Atomic Energy | Year: 2012

The possibilities of competitive development of a liquid-salt reactor with a cavity-type core for developing thorium-uranium breeder reactor and for burning transuranium elements from the spent fuel of power reactors are described. Such a reactor is characterized by fuel-cycle flexibility, since it is capable of operating with a wide spectrum of fuel and raw-materials loads without being stopped or structurally altered. Compared with thermal liquid-salt reactors with a graphite moderator, these reactors have deeply negative temperature coefficients of reactivity (-7·10 -5°C -1), and the fuel salt is completely processed in 3-4 years. Such a reactor facility can be incorporated into any strategy for the development of nuclear power. © 2012 Springer Science+Business Media, Inc.


Kuzin M.A.,State Science Center Research Institute for Atomic Reactors s
Chemical and Petroleum Engineering | Year: 2010

A model of a centrifuge is developed, critical centrifuge speeds are determined by the Dunkerley and Krylov method, and the expected endurance with centrifuge vibration is determined. © 2010 Springer Science+Business Media, Inc.


Alekseev A.V.,State Science Center Research Institute for Atomic Reactors s | Burukin A.V.,State Science Center Research Institute for Atomic Reactors s | Izhutov A.L.,State Science Center Research Institute for Atomic Reactors s | Kalygin V.V.,State Science Center Research Institute for Atomic Reactors s | And 2 more authors.
Atomic Energy | Year: 2013

Information is presented on programs and methods for performing in the MIR research reactor loop tests in order to study the serviceability of the fuel elements of the water-cooled reactors in transient and emergency regimes (abrupt increase and cyclic change of power, anticipated reactivity accident and lossof-coolant accident). The characteristics of loop facilities and their instrumentation are presented. Experimental data confirming that the required test regimes were in fact attained are presented. © 2012 Springer Science+Business Media New York.


Kosenkov V.M.,State Science Center Research Institute for Atomic Reactors s | Posevin A.O.,State Science Center Research Institute for Atomic Reactors s | Silantiev P.P.,State Science Center Research Institute for Atomic Reactors s
Atomic Energy | Year: 2012

Experimental data are presented on the change of the pycnometric density and unit-cell volume of beryllium irradiated in an SM reactor to neutron fluence 14·10 22 cm -2. The behavior of the unit-cell volume as a function of the neutron fluence is similar to the data for other metals. This and data on the volume change in beryllium oxide, where a large amount of gas is also formed during irradiation, make it possible to evaluate critically the assertion that helium forms a solid substitution solution. It is proposed that helium is confined in small accumulations. © 2012 Springer Science+Business Media, Inc.

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