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从质子辐射natHgO中进行无载体放射性同位素的定量气相分离
Jennifer M Wilson1,2, Dominik Herrmann2, Pascal V Grundler3
1Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, Switzerland.
Journal of radioanalytical and nuclear chemistry
|June 9, 2025
概括
一种新的热分离方法有效地将无载体的-202与质子辐射的 (II) 氧化物目标隔离起来. 这种技术提供了一种快速可靠的方法来生产中子缺乏的放射性同位素,用于医疗应用.
科学领域:
- 核化学 核化学 核化学
- 放射化学 放射化学是指辐射化学.
- 材料科学 材料科学 材料科学
背景情况:
- (II) 氧化物 (HgO) 的质子辐射是一种生产 (Tl) 放射性同位素的方法.
- 在应用中,高效地将无载体Tl与HgO矩阵分离至关重要.
- 现有的方法可能在速度或效率方面存在局限性.
研究的目的:
- 开发和验证一种简单,快速和定量方法,将无载体的-202 (202Tl) 从以质子辐射的HgO.中进行热分离.
- 为了评估分离过程的效率.
- 为了证明产生具有医学意义的Tl放射性同位素的潜力.
主要方法:
- 用~26 MeV质子对natHgO目标进行质子辐射.
- 在470°C以上的温度下,HgO的热分解.
- 气相分离利用了在550至670°C的 (Ta) 表面上强烈吸附的Ti.
- 使用202Tl和203Hg的马光谱检验分离效率的验证.
主要成果:
- 无载体202Tl通过热处理成功地从散装HgO目标材料中分离出来.
- 分离过程是定量的,利用HgO分解和Tl吸附特性.
- 通过马光谱学证实了分离效率,检测到202Tl和共产的203Hg.
结论:
- 开发的热分离方法是快速,可靠和高效的,用于生产无载体Tl放射性同位素.
- 这种技术适用于产生缺中子Tl同位素,包括具有医学意义的201Tl.
- 该方法提供了一种从HgO矩阵中获得高纯度Tl放射性同位素的实用方法.
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