A scintillation method for determination of actinide alpha-activity in samples
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This report describes an efficient, easy to use, and inexpensive method for detection of alpha-activity in biological samples, the alpha radiometer. The actinide elements are coprecipitated from acid-dissolved, ashed samples with bismuth phosphate and the precipitate is then mixed with ZnS(Ag) scintillation powder. The mixture is dried, in a thin layer, on the surface of a polystyrene cuvet and scintillations from the layer are detected with a photomultiplier tube. An optimal counting efficiency is obtained with a scintillation powder thickness between 25 and 40 mg·cm−2.
KeywordsPhosphate Physical Chemistry Inorganic Chemistry Thin Layer Polystyrene
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- 1.Russian Federation State Standard Number 297/96. Radiometer of Alpha Radiation RIA-05, General State Center for Measurement Standards, D. Mendeleev NPO VNIIM, Saint Petersburg, Russia, 1996, (in Russian.)Google Scholar
- 2.Russian Federation State Standard Number 39-2/93. Plutonium: Method for Anion-exchange Estimation of Low-level Alpha-activity in Autopsy Specimens, General State Center for Measurement Standards, D. Mendeleev NPO VNIIM, Saint Petersburg, Russia, 1993, (in Russian).Google Scholar
- 3.K. G. Suslova, R. E. Filipy, V. F. Khokhryakov, S. A. Romanov, R. L. Kathren, Radiat. Protect. Dosim., 67 (1996) 13.Google Scholar
- 4.B. Boecker, R. Hall, K. Inn, J. Lawrence, P. Ziemer, G. Eisele, B. Wachholz, W. Burr, Jr., Health Phys., 60 (Suppl. 1) (1991) 45.Google Scholar