Among the existing elemental characterization techniques, particle-induced x-ray emission (PIXE) and energy-dispersive x-ray (EDX) spectroscopy are two of the most widely used in different scientific and technological fields. Here, we present the first quantitative laser-driven PIXE and laser-driven EDX experimental investigation performed at the Centro de Láseres Pulsados in Salamanca. Thanks to their potential for compactness and portability, laser-driven particle sources are very appealing for materials science applications, especially for materials analysis techniques. We demonstrate the possibility to exploit the x-ray signal produced by the co-irradiation with both electrons and protons to identify the elements in the sample. We show that, using the proton beam only, we can successfully obtain quantitative information about the sample structure through laser-driven PIXE analysis. These results pave the way toward the development of a compact and multifunctional apparatus for the elemental analysis of materials based on a laser-driven particle source.

在现有的元素表征技术中，粒子感应X射线发射（PIXE）和能量色散X射线（EDX）光谱是不同科学和技术领域中使用最广泛的两种光谱。在这里，我们介绍了在萨拉曼卡的拉萨雷斯·普尔萨多斯中心进行的第一个定量激光驱动PIXE和激光驱动EDX实验研究。由于其具有致密性和便携性的潜力，激光驱动粒子源对于材料科学应用特别是材料分析技术非常有吸引力。我们证明了利用电子和质子共同辐照产生的X射线信号来识别样品中元素的可能性。我们证明，仅使用质子束，我们可以通过激光驱动的PIXE分析成功获得有关样品结构的定量信息。这些结果为开发紧凑，多功能的设备铺平了道路，该设备用于基于激光驱动粒子源的材料元素分析。