A pixelated scintillator has been designed, fabricated, and tested using a laser-accelerated proton source for use in proton diagnostics at rep-rated laser facilities. The work presented here demonstrates the enhanced spatial resolution of thin, organic scintillators through a novel pixelation technique. Experimental measurements using laser-generated protons incident onto 130 μm-thick scintillators indicate a >20% reduction in the scintillator point spread function (PSF) for the detectors tested. The best performing pixelated detector reduced the ∼200 μm PSF of the stock material to ∼150 μm. The fabrication technique may be tailored to reduce the pixel size and achieve higher spatial resolutions.

中文翻译：

---

用于重复评级的质子诊断的 Eljen-204 塑料闪烁体的增强空间分辨率

使用激光加速质子源设计、制造和测试了像素化闪烁体，用于在额定激光设施中进行质子诊断。这里介绍的工作通过一种新颖的像素化技术展示了薄有机闪烁体的空间分辨率增强。使用激光产生的质子入射到 130 μm 厚的闪烁体上的实验测量表明，所测试的探测器的闪烁体点扩散函数 (PSF) 降低了 20% 以上。性能最好的像素化检测器将库存材料的~200 μm PSF 减少到~150 μm。可以调整制造技术以减小像素尺寸并实现更高的空间分辨率。