Simultaneous determination of lead-210, gross beta and gross alpha activities of air filters by pulse shape discrimination liquid scintillation counting

  • F. Bou-Rabee
  • Y. Y. Bakir
  • H. Bem
Application of Radioanalytical Techniques to Nuclear Safeguards and the Measurement of Environmental Radioactivity


A chemical procedure for transferring deposited solid matter from a cellulose filter into the liquid scintillation cocktail has been described. The influence of chemical and color quenching on alpha and beta detection efficiency, as well as on misclassification of beta and alpha pulses was corrected by an external standard method. Under the chosen pulse shape discrimination level (PSD), the alpha and beta detection efficiencies were above 85% and spillovers of alpha and beta pulses were below 10% and 2% respectively. Determination limits for samples containing up to 200 mg of mineral matter were 0.015 mBq m−3 for alpha, 0.055 mBq.m−3 for210Pb and 0.055 mBq.m−3 for beta activity (counting time 12000 s and volume of filtered air ∼ 1000 m3). The method has been applied for routine monitoring of210Pb as well as for gross alpha and beta activities of longer-living radionuclides (T1/2.>11 hrs) in suspended air matter.


Radionuclide Liquid Scintillation Liquid Scintillation Counting Mineral Matter Solid Matter 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    United Nations Scientific Committee on the Effects of Atomic Radiation. Sources, Effect and Risks of Ionizing Radiations (UNSCEAR). United Nations. New York 1988.Google Scholar
  2. 2.
    YU. A. SAPOZHNIKOV, O.B. EGOROV, I.P. EFINOV, S.V. PIROGOVA, N.S. KUTSEVA J Radioanal. Nucl. Chem., Lett., 176 (1993) 353.Google Scholar
  3. 3.
    R.N. MOSER, J Radioanal Nucl. Chem., Art. 173 (1992) 283.Google Scholar
  4. 4.
    R.W. SHEETS, C.C. THOMPSON, J Radioanal. Nucl. Chem., Art., 161 (1992) 465.Google Scholar
  5. 5.
    L. SALONEN, Sci. Total Environ., 130/131 (1993) 23.CrossRefGoogle Scholar
  6. 6.
    S. MOBIUS, P. KAMOLCHOTE, W. ROEKSBUTR, Sci. Total Environ., 130/131 (1993) 467.CrossRefGoogle Scholar
  7. 7.
    H. BEM, Y.Y. BAKIR, F. BOU-RABEE, J Radioanal. Nucl. Chem., Lett., 186 (1994) 119.Google Scholar
  8. 8.
    Y. HINO, Y. KAWADA, Nucl. Instrum. Methods. A286 (1990) 543.Google Scholar
  9. 9.
    J.M. PATES, G.T. COOK, A.B. MACKENZIE, J. THOMSON, J Radioanal. Nucl. Chem., Art., 172 (1993) 341.Google Scholar
  10. 10.
    I.M. FISENNE. “Long lived Radionuclides in the Environment, in Food and in Human Beings.” in Fifth International Symposium on the Natural Radiation Environment. Commission of the European Communities. Report EUR 14411 EN (1993).Google Scholar
  11. 11.
    L.A. CURRIE, Anal Chem., 40 (1968) 586.CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó 1995

Authors and Affiliations

  • F. Bou-Rabee
    • 1
  • Y. Y. Bakir
    • 2
  • H. Bem
    • 3
  1. 1.Radiation Protection UnitKuwait UniversitySafatKuwait
  2. 2.Radiation Protection DepartmentMinistry of Public HealthKuwait
  3. 3.the Institute of Applied Radiation ChemistryTechnical UniversityLodzPoland

Personalised recommendations