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A. A. Dyakov
A. A. Dyakov
Institute of Reactor Materials
Institute of Reactor Materials
Ekaterinburg
Russia

Articles

Radioactive waste and irradiated nuclear fuel management
  • Date submitted
    2005-01-09
  • Date accepted
    2005-02-04
  • Date published
    2005-08-01

Application of plastic track detectors for determination of fissile materials in liquid radioactive waste of NPP

Article preview

Methods for determining the amount of fissile materials in containers with liquid radioactive waste have been developed. The concentration of the sum of fissile materials (uranium-235 and plutonium-239) was determined by the method of plastic track detectors. This method is adapted to highly saline waters and bottom sediments. The contribution of plutonium-239 to the sum of fissile materials was determined by the radiochemical method. The methods were used to solve nuclear safety problems during decommissioning of NPPs.

How to cite: Dyakov A.A., Perekhozheva T.N., Ivanov V.Y. Application of plastic track detectors for determination of fissile materials in liquid radioactive waste of NPP // Journal of Mining Institute. 2005. Vol. 166. p. 175-178.
Radioactive waste and irradiated nuclear fuel management
  • Date submitted
    2003-08-21
  • Date accepted
    2003-09-23
  • Date published
    2004-03-01

Research and development of methods and technologies for safe dismantling and dismantling of decommissioned process equipment at nuclear power facilities

Article preview

The radiochemical procedures of the extraction of the nuclides U, Pu, Am and Cm and the alpha - spectrometric method of their registration have been developed to analyze actinides in the liquid radioactive waste with a high content of salts and organic impurities. The plastic track detector method has been developed to determine micro concentrations of the fissile materials U-235 and Pu-239. The above methods have been adapted to be applicable for the liquid radioactive waste analysis.

How to cite: Dyakov A.A. Research and development of methods and technologies for safe dismantling and dismantling of decommissioned process equipment at nuclear power facilities // Journal of Mining Institute. 2004. Vol. 158. p. 178-180.