Scholarlink

<p>We have developed an alpha spectrometry method for <sup>230</sup>Th/<sup>234</sup>U radiochronometry to determine the model separation age for uranium materials. This method offers an alternative to the more commonly used, but significantly more resource intensive multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) while providing similar accuracy and precision. The development included radiochemical separation of uranium and thorium, calibration of the <sup>232</sup>U tracer and the alpha spectrometry measurement. The method was validated by analyzing a certified reference material, CRM 125-A, which is a uranium oxide pellet assay, isotopic, and radiochronometric standard. The results were compared to those obtained by our routine MC-ICP-MS <sup>230</sup>Th/<sup>234</sup>U radiochronometry analysis method to assess the performance parameters for alpha spectrometry compared to the state-of-the-art technique.</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

230Th/234U radiochronometry for uranium materials by alpha spectrometry for nuclear forensics analysis

  • 期刊论文

  • 发表日期：

    2025年10月17日

查看全文
  • Zsuzsanna Macsik,
  • Stephen P. LaMont,
  • Allison M. Wende,
  • Dylan C. Flanagan,
  • John R. Engel,
  • Kyle J. Krajewski,
  • Robert E. Steiner

摘要

We have developed an alpha spectrometry method for 230Th/234U radiochronometry to determine the model separation age for uranium materials. This method offers an alternative to the more commonly used, but significantly more resource intensive multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) while providing similar accuracy and precision. The development included radiochemical separation of uranium and thorium, calibration of the 232U tracer and the alpha spectrometry measurement. The method was validated by analyzing a certified reference material, CRM 125-A, which is a uranium oxide pellet assay, isotopic, and radiochronometric standard. The results were compared to those obtained by our routine MC-ICP-MS 230Th/234U radiochronometry analysis method to assess the performance parameters for alpha spectrometry compared to the state-of-the-art technique.