Innershell ionization dynamics in a high-intensity x-ray laser and cluster interaction

研究了波长为13.9 nm、强度高达2×10~(-1)W/cm~(-2)的软X射线激光脉冲与Xe团簇的相互作用。相应的激光光子能量足够高，足以使Xe-4d内壳层电子光电离。结果表明，Xe~(2+)&Lt；~(3+)&Gt~(3+)离子成为最终的离子产物。阐明了在x射线激光和团簇相互作用中提高双俄歇跃迁几率的可能机制。

The interaction of Xe clusters with a soft x-ray laser pulse having a wavelength of 13.9nm and an intensity of up to 2×10^<10>W/cm^2 was investigated. The corresponding laser photon energy was sufficiently high to photoionize Xe 4d inner-shell electrons. It was found that Xe^<3+> ions became the dominant final ionic product. Possible mechanisms responsible for the enhancement of the double Auger transition probability in x-ray laser and cluster interaction are clarified.