Plutonium research has been stifled by the significant number of administrative controls and safety procedures, space and instrumentation limitations in radiological gloveboxes, and the potential for personnel and equipment contamination. To address the limited number of spectroscopic studies in Pu-bearing compounds in the current scientific literature, this work presents the use of double-walled cells (DWCs) in “clean” buildings/laboratories as an alternative to research in radiological gloveboxes. This study reports the first laser-induced breakdown spectroscopy (LIBS) experiments of a PuO2 pellet contained within a DWC, where the formation of elemental (atomic and ionic) species as well as the evolution from elemental to molecular products (Pu xO y) was measured. Raman spectroscopy was also used to characterize the surface of the ablated pellet and the particulates deposited on the window of the inner cell. The full width half-maximum of the T2g band enabled us to obtain an estimate of the temperature at the pellet surface after the ablation pulse and the particulates based on the crystal lattice disorder. Particulates deposited on the window of the DWC during laser ablation were characterized using scanning electron microscopy, where molten irregular particulates and spheroids were observed. This exciting research conducted in a DWC describes our initial attempts to incorporate LIBS in the arsenal of spectroscopic tools for nuclear forensics applications.

中文翻译：

---

双壁电池中激光诱导的二氧化钚等离子体

钚研究受到大量行政控制和安全程序、放射性手套箱中的空间和仪器限制以及人员和设备污染的可能性的阻碍。为了解决当前科学文献中含 Pu 化合物的光谱研究数量有限的问题，这项工作提出了在“清洁”建筑/实验室中使用双壁室 (DWC) 作为放射性手套箱研究的替代方案。这项研究报告了 PuO 的首次激光诱导击穿光谱 (LIBS) 实验2DWC 中包含的颗粒，其中元素（原子和离子）物质的形成以及从元素到分子产物（PuX氧y) 进行了测量。拉曼光谱也用于表征烧蚀颗粒的表面和沉积在内部电池窗口上的颗粒。T 的半高全宽2克带使我们能够根据晶格无序获得烧蚀脉冲和颗粒后颗粒表面的温度估计。使用扫描电子显微镜对激光烧蚀过程中沉积在 DWC 窗口上的颗粒进行表征，观察到熔化的不规则颗粒和球体。这项在 DWC 中进行的激动人心的研究描述了我们将 LIBS 纳入核法证学应用光谱工具库中的初步尝试。