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使用FN Tandem加速器从天然CaF2材料中生产43Sc和44gSc
Austin D Nelson1, Adam M Clark1, Thomas L Bailey1
1Department of Physics, University of Notre Dame, Notre Dame, IN, 46556, United States.
概括
研究人员探索了一种新方法来制造-43和-44放射性同位素,这对theranostics至关重要. 这种新的技术使用-3束对目标产生了有希望的结果,与较低能量的理论模型保持一致.
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.
- 医疗同位素生产 医疗同位素生产
背景情况:
- 扫-43和扫-44是有前途的β-加 (β+) 发射器用于theranostics.
- 它们与Scandium-47.7形成了光学对.
- 之前的生产方法使用了循环子或线性加速器,具有各种粒子束.
研究的目的:
- 为了研究一种新的生产技术,用于Scandium-43和Scandium-44.
- 测量这些同位素的产量,这些同位素来自-3束与天然的反应.
- 将实验产量与理论预测进行比较.
主要方法:
- 用-3光束对天然化目标进行辐射.
- 使用一种装有化的新型离子源阴极.
- 分析玛射线光谱法以检测和量化放射性同位素.
- 用TALYS截面模型对实验厚度目标产量的比较.
主要成果:
- 成功检测并测量了斯堪迪-43和斯堪迪-44.4的产量.
- 首次测量了对自然的3He反应的产量.
- 实验收益率与TALYS模型在较低光束能量的良好一致.
- 在更高的光束能量下观察到的与理论模型的分歧.
结论:
- 使用-3束的新型生产方法有效地生产了斯堪迪-43和斯堪迪-44.
- 结果验证了低能量的理论模型,为进一步优化提供了基础.
- 这项研究有助于推进异同位素生产.
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