Tracking of oxide formation in laser-produced uranium plasmas.
Tracking of oxide formation in laser-produced uranium plasmas.
复制标题
跟踪激光产生的铀等离子体中氧化物的形成。
作者：
P. Skrodzki;M. Burger;I. Jovanovic;M. Phillips;B. Brumfield;S. S. Harilal
我们使用一个空间和时间分辨的发射跟踪技术的基础上，光学发射光谱映射从铀及其化合物在纳秒激光产生的等离子体中的发射特征的演变。我们观察到淬灭的发射从中性铀（591.538 nm）和一氧化铀（593.55 nm）物种与氧浓度的增加，并讨论可能的反应途径解离或形成更高的铀氧化物（UxOy）。我们进一步确定了320 nm和380 nm之间以及520 nm和640 nm之间的光谱特征，我们将其归因于UxOy。
We use a spatially and temporally resolved emission tracking technique based on optical emission spectroscopy to map the evolution of emission features from uranium and its compounds in a plasma produced by a nanosecond laser. We observe quenching of the emission from neutral uranium (591.538 nm) and uranium monoxide (593.55 nm) species with increasing oxygen concentration and discuss possible reaction pathways for dissociation or formation of higher uranium oxides (UxOy). We further identify spectral features between 320 nm and 380 nm and between 520 nm and 640 nm, which we attribute to UxOy.