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Related Experiment Videos

Heavy elements in surface materials: determination by alpha particle scattering.

T E Economou, W A Anderson, E M Blume

    Science (New York, N.Y.)
    |July 13, 1973
    PubMed
    Summary
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    Alpha particle backscattering quantifies heavy elements like lead in surfaces. A portable instrument offers sensitive, rapid analysis for painted materials.

    Area of Science:

    • Nuclear Physics
    • Analytical Chemistry
    • Materials Science

    Background:

    • Heavy elements, such as lead, pose health risks in surface materials.
    • Accurate and rapid detection methods are crucial for environmental and safety assessments.
    • Existing techniques may lack portability or sensitivity for on-site analysis.

    Purpose of the Study:

    • To develop a portable instrument for detecting heavy elements in surface materials.
    • To utilize alpha particle backscattering for quantitative elemental analysis.
    • To assess the instrument's sensitivity and applicability for painted surfaces.

    Main Methods:

    • Employing alpha particle backscattering from a radioactive source.
    • Constructing a light, portable instrument for field measurements.

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  • Calibrating the instrument for quantitative analysis of lead content.

    • Main Results:

    • The instrument successfully quantifies heavy elements, specifically lead.
    • Achieved a sensitivity of 0.3 percent by weight.
    • Demonstrated feasibility for rapid surveys of painted surfaces.

    Conclusions:

    • Alpha particle backscattering is a viable method for heavy element detection.
    • The developed portable instrument provides sensitive and efficient on-site analysis.
    • This technology can aid in identifying lead-containing materials in various applications.