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A spreadsheet method for 90Sr and 89Sr interpretation.

J K Sutherland1

  • 1Health Physics Department, New Brunswick Electric Power Commission, Fredericton, Canada.

Health Physics
|January 1, 1988
PubMed
Summary
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This study introduces a spreadsheet method for radiostrontium analysis, improving accuracy by using multiple counts and avoiding early measurements. The method efficiently determines strontium-89 and strontium-90 percentages without repeat analyses.

Area of Science:

  • Radiochemistry
  • Analytical Chemistry
  • Environmental Science

Background:

  • Radiostrontium analysis is crucial for environmental monitoring.
  • Accurate determination of Strontium-90 (90Sr) and Strontium-89 (89Sr) is essential.
  • Traditional methods can be limited by measurement uncertainties.

Purpose of the Study:

  • To present a novel spreadsheet method for interpreting radiostrontium analyses.
  • To enhance the accuracy and efficiency of 89Sr and 90Sr quantification.
  • To provide a robust method that minimizes uncertainties in radiostrontium measurements.

Main Methods:

  • Utilizes a spreadsheet to handle multiple data points from radiostrontium analyses.
  • Employs counts taken from 1 day up to 650 hours post-chemical separation.

Related Experiment Videos

  • Compares sample count data against a matrix of ingrowth/decay curves for best data fit.

    • Main Results:

    • The method accurately determines the percentages of 89Sr and 90Sr in samples.
    • It provides the best estimate of "time-0" counts using all available data points.
    • Eliminates the need for secondary separations and analyses, saving time and resources.

    Conclusions:

    • The spreadsheet method offers a reliable and efficient approach to radiostrontium analysis.
    • It improves upon traditional methods by mitigating uncertainties associated with early counts.
    • This technique is valuable for accurate environmental radiochemical monitoring.