Scholarlink

<p>The rapid detection of radioactivity in human urine after suspected intake during a radiological emergency incident is crucial for guiding medical treatment. A rapid gross alpha/beta urine radiobioassay liquid scintillation method was developed using <sup>239</sup>Pu and <sup>90</sup>Sr. Minimum detectable activities as a function of count time at different quench values were determined. Calculated minimum detectable ingestion and inhalation intakes were compared to standard intake thresholds. Detector performance resolving alpha and beta signals was tested with samples containing different alpha:beta activity ratios as a function of quench and count time. The acquired results revealed the advantages and limitations of the method.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Alpha and beta radionuclide detection limit and intake study in artificial human urine using liquid scintillation counting

  • 期刊论文

  • 发表日期：

    2025年4月25日

查看全文
  • Taylor S. Powell,
  • Ezekiel Blain,
  • Sherry A. Faye,
  • Douglas K. Haines,
  • Miguel A. Torres,
  • Adam G. Burn

摘要

The rapid detection of radioactivity in human urine after suspected intake during a radiological emergency incident is crucial for guiding medical treatment. A rapid gross alpha/beta urine radiobioassay liquid scintillation method was developed using 239Pu and 90Sr. Minimum detectable activities as a function of count time at different quench values were determined. Calculated minimum detectable ingestion and inhalation intakes were compared to standard intake thresholds. Detector performance resolving alpha and beta signals was tested with samples containing different alpha:beta activity ratios as a function of quench and count time. The acquired results revealed the advantages and limitations of the method.