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Monday, 6/09/2010
News
Articles
  • 26.08.2010
    Very deep – below 4 km – borehole is one of the design options for the U.K.’s HLW geological disposal facility. It is assumed that heat resulting from the radioactive decay can be used to melt the surrounding rocks which would create a capsule, sarcophagus on cooling down and crystallisation of granite. Melting of surrounding rocks could result in sinking or floating of waste canisters depending on difference in the densities of waste and rock, therefore additional buffer inserts have to be used to compensate such a difference.
  • 06.08.2010
     Montenegro, which is now an independent state, resulted from the disintegration of Socialist Federal Republic of Yugoslavia. Montenegro is one of most attractive European countries famous for its beautiful coasts on Adriatic See, mounting karsts and the Europe’s deepest canyon, the Tara Canyon dug in limestone deep up to 1,300 m. Montenegro, which was declared an ecological state, has recently hosted the Regional Training Course for Waste Management Operators on Radioactive Waste Management - Pre-Disposal Technologies.
  • 03.08.2010
    Slovakia started its vitrification programme in 1997 putting into operation HLW vitrification facility VICHR. This facility was designed to immobilise 31 m3 of aqueous HLW which resulted from storage of spent fuel in a 3 to 5% solution of chromate and dichromate of potassium (K2CrO4 and K2Cr2O7, so caled chrompik). Main HLW contaminants were fission products such as 134, 137Cs and 90Sr.
Interview
  • 16.06.2010
     Just several years ago only a few knew about JSC Atomredmetzoloto (Uranium Holding ARMZ). Now, this is one of SC Rosatom’s constituents; the holding which is the world’s second in uranium resources and which unites assets on three continents. The last, crisis year of 2009 became really a success year for Atomredmetzoloto: the company was acquiring assets abroad and even became the largest shareholder of the Canadian uranium miner Uranium One.
  • 24.03.2010
    Victor ORLOV participated in the creation of first nuclear power stations with fast-neutron reactors and was among the authors of the new concept of the development of nuclear power based on such reactors. This concept was reflected in the Strategy of Russia’s Nuclear Development for the First Half of the XXI Century and was used as input for the Russian President’s initiative at the Millennium Summit, which was aimed at sustainable development of nuclear power, non-proliferation of nuclear materials and environmental protection.
  • 18.03.2010
    These days, nuclear power is on the rise. Yuri Sokolov, Deputy Director of the IAEA, has been telling us about the Agency’s approaches to ensuring stable and safe development of peaceful nuclear technologies and their advancement into new countries, while maintaining the existing non-proliferation arrangements. − Yuri Alekseevich, can you please briefly tell us about yourself. Why did you choose nuclear physics as your trade?
Technology
  • 11.03.2010
    For the last few years, the volume of radioactive soil from industrial sites of the Central Russia has been growing steadily. Such soil is classed as solid radioactive waste and is subject to long-term storage. However, the relatively low activity level and the absence of reprocessing technology lead to unpractical use of the repository space. To solve this problem, specialists of SUE SIA Radon are developing a technology of reagent soil deactivation.
  • 09.03.2010
    Among the numerous methods of cleaning soil from radionuclides, the method of mechanical classification stands out for its simplicity. This technology allows to split contaminated soil into the clean fraction and the radionuclidecontaining concentrate. The successfulness of the method can be explained by the properties of the soil itself: over 80% of radionuclides usually concentrate in the small- fraction clay particles less than 50 mcm that do not make up more than 10% of the original weight of the soil.