Enhancement of the UK Primary Standard for Absorbed Dose for Proton Radiotherapy

这项提议是将NPL石墨量热仪与粒子物理学的辐射硬位置传感跟踪探测器结合起来。NPL石墨量热仪定义了质子放射治疗中吸收剂量的英国标准，但没有位置灵敏度。这将准确绘制NPL量热计前面的剂量分布分布图，以提供一种新的仪器，用于点扫描质子放射治疗，提供提供的剂量和剂量束-光斑分布，并作为时间的函数进行监测。

The proposal is to combine the NPL Graphite Calorimeter, which defines the UK standard for absorbed dose in proton radiotherapy but has no position sensitivity, with radiation-hard position sensing tracking detectors from particle physics. These will accurately map the profile of the dose distribution on the front of the NPL calorimeter to provide a new instrument which, for spot scanning proton radiotherapy, provides both the delivered dose and the dose beam-spot profile and monitors this as a function of time.