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<p>The separation between astatine-211 and polonium-210 during dry distillation with a commercially available equipment was investigated using two different analytical methods. Astatine targets were allowed to completely decay, and dry distillation was performed on the decayed target material, containing polonium-210. Analysis of distillation eluate using alpha spectrometry and alpha camera analysis showed a polonium co-distillation of &lt; 0.1%, indicating a polonium removal exceeding 99.9%.This shows that co-distillation of polonium-210 on an astatine target during dry distillation only results in a minor contribution to the total polonium-210 burden, which is dominated by ingrowth from astatine−210.</p>

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Investigating the separation of astatine-211 and polonium-210 via dry distillation

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月29日

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  • Ellinor Hansson,
  • Rimon Thomas,
  • Tom Bäck,
  • Charlotte Ytterbrink,
  • Holger Jensen,
  • Sture Lindegren,
  • Emma Aneheim

摘要

The separation between astatine-211 and polonium-210 during dry distillation with a commercially available equipment was investigated using two different analytical methods. Astatine targets were allowed to completely decay, and dry distillation was performed on the decayed target material, containing polonium-210. Analysis of distillation eluate using alpha spectrometry and alpha camera analysis showed a polonium co-distillation of < 0.1%, indicating a polonium removal exceeding 99.9%.This shows that co-distillation of polonium-210 on an astatine target during dry distillation only results in a minor contribution to the total polonium-210 burden, which is dominated by ingrowth from astatine−210.