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在放射治疗中应用LiMgPO4晶体用于质子束质量控制

Damian Wróbel¹, Tomasz Kowalski¹, Sebastian Kusyk¹

¹Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland.

Radiation protection dosimetry

|October 11, 2023

概括

酸 (LiMgPO4) 晶体显示出高灵敏度和快速响应,用于实时监测质子束参数. 这使得LiMgPO4成为放射治疗应用中精确控制的有希望的探测器.

科学领域:

核物理与材料科学核物理与材料科学
放射治疗和医学物理学的研究.

背景情况:

精确监测质子束特征对于有效的放射治疗至关重要.
现有的检测方法可能在实时测量能力方面存在局限性.

研究的目的:

研究LiMgPO4:Tm晶体作为质子束监控实时探测器的潜力.
在质子辐射下评估LiMgPO4的放射发光 (RL) 特性.

主要方法:

实时进行了LiMgPO4:Tm (1.2 mol%) 晶体的放射发光测量.
在放射治疗设施使用60 MeV质子束进行了辐射.
使用了带有光倍增器检测器的远程光纤系统.

主要成果:

LiMgPO4晶体对质子束辐射具有很高的敏感性.
探测器表现出快速反应时间,使实时测量成为可能.
成功测量了质子束电流,流量,流动性和时间结构参数.

结论:

LiMgPO4:Tm晶体对于实时监测质子束参数非常有效.
该材料的特性表明它适用于质子疗法质量保证的检测器.

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