论文标题
Li-Glass/Multi-Anode Photoltiplier检测器对聚焦质子和杜特隆梁的响应
Response of a Li-glass/multi-anode photomultiplier detector to focused proton and deuteron beams
论文作者
论文摘要
已经研究了基于位置敏感的Li玻璃闪光检测器对2.5 MeV质子和杜特隆的聚焦梁的响应。将光束扫描到探测器的水平0.5 mm，垂直于光束的垂直步长扫描。使用8乘8像素多动物光电倍增管注册闪烁光。根据事件为基础，记录每个像素的信号振幅。几个像素通常在每个光束位置注册了相当大的信号。研究了集合阈值以上的像素数量，并在最大可能的区域中优化了单击效率作为目标。对于这两个梁，在全部沉积峰的平均值的约50％的阈值中，〜80％的事件在单个像素中注册，导致x和y中的有效位置分辨率约为5 mm。
The response of a position-sensitive Li-glass based scintillation detector to focused beams of 2.5 MeV protons and deuterons has been investigated. The beams were scanned across the detector in 0.5 mm horizontal and vertical steps perpendicular to the beams. Scintillation light was registered using an 8 by 8 pixel multi-anode photomultiplier tube. The signal amplitudes were recorded for each pixel on an event-by-event basis. Several pixels generally registered considerable signals at each beam location. The number of pixels above set thresholds were investigated, with the optimization of the single-hit efficiency over the largest possible area as the goal. For both beams, at a threshold of ~50% of the mean of the full-deposition peak, ~80% of the events were registered in a single pixel, resulting in an effective position resolution of ~5 mm in X and Y.
