Search - Number 19 - THE INDIRECT PLUTONIUM ISOTOPES’ CONTENT IN THE CHNPP RESTRICTED ZONE SOIL SAMPLES

THE INDIRECT PLUTONIUM ISOTOPES’ CONTENT IN THE CHNPP RESTRICTED ZONE SOIL SAMPLES
Cover not present THE INDIRECT PLUTONIUM ISOTOPES’ CONTENT IN THE CHNPP RESTRICTED  ZONE SOIL SAMPLES
Category: Number 19
Publication: 19
Summary

There is presented the procedure of of indirect specific activity determination of radioisotopes 238Pu and 239 +240Pu in the samples of Chernobyl nuclear power plant exclusion zone objects and environmental based on the measured specific activity values of reference radionuclides 90Sr and 154Eu, and determined reference radionuclides weighting fsctors. Reference radionuclides specific activities are determined by scintillation spectrometers of beta-, gamma-radiation energies type SEB-01 and SEG-001 with software AkWin Production Enterprise "AtomKompleksPrylad" (Kyiv). Weightening factors are determined by calibration measurements using radiochemical procedures of plutonium determination. The indirect measurements of specific activity radioisotopes 238Pu and 239 +240Pu range is within 1 to 30000 Bq/kg. The procedure is certified by the National Science Center "Institute of Metrology" (Kharkiv) in accordance with established procedure.

Keywords: indirect measurements, specific activity, plutonium, radioactive materials, radio-active wastes, spectrometer, preparation of the samples, beta-activity, gamma-activity.

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