篡改层对原子团簇爆炸动力学的影响
The effect of tamper layer on the explosion dynamics of atom clusters
摘要:
用分子动力学方法研究了小样品在短强硬X射线脉冲中的行为。重点研究了试样不同压实层的压实效果。这是从单个粒子的结构成像的角度讨论的,不仅包括结构的畸变,而且还包括背景条件。给出了库仑爆炸的详细图像,并对篡改机理进行了解释。它表明,薄的水层是有效的,在减缓的原子结构的扭曲,但它给了一个显着的贡献的背景。
英文摘要:
The behavior of small samples in very short and intense hard x-ray pulses is studied by molecular dynamics type calculations. The main emphasis is put on the effect of various tamper layers about the sample. This is discussed from the point of view of structural imaging of single particles, including not only the distortion of the structure but also the background conditions. A detailed picture is given about the Coulomb explosion, with explanation of the tampering mechanism. It is shown that a thin water layer is efficient in slowing down the distortion of the atomic structure, but it gives a significant contribution to the background.
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