Accurate two-dimensional (2D) profile measurements at submillimeter precision are necessary for proton beam commissioning and periodic quality assurance (QA) purposes and are currently performed at our institution with a commercial scintillation detector (Lynx PT) with limited means for independent checks. The purpose of this work was to create an independent dosimetry system consisting of an in-house optical scanner and a BaFBrI:Eu²⁺ storage phosphor dosimeter by: (a) determining the optimal settings for the optical scanner, (b) measuring 2D proton spot profiles with the storage phosphors, and (c) comparing them to similar measurements using a commercial scintillation detector.

中文翻译：

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用于质子笔形束斑轮廓测定的存储荧光粉成像系统的开发

亚毫米精度的准确二维 (2D) 轮廓测量对于质子束调试和定期质量保证 (QA) 目的是必要的，目前在我们的机构使用商业闪烁探测器 (Lynx PT) 进行，独立检查的手段有限。这项工作的目的是创建一个由内部光学扫描仪和 BaFBrI:Eu ²⁺储存磷光体剂量计组成的独立剂量测定系统，方法是：(a) 确定光学扫描仪的最佳设置，(b) 测量 2D 质子使用存储磷光体的点轮廓，以及 (c) 将它们与使用商业闪烁检测器的类似测量值进行比较。