Investigation Of X-ray Emission In The Interaction Of Slow Highly Charged Ions With Solid Surface

The investigations about the x-ray emission spectrums in the interaction of slow highly charged ions(SHCI) with solid surface are fundamental in the research of energy transfer mechanism, neutralization process, atomic structure and life time of the incident SHCI . It is also important in the applied research, such as the surface analyzation and modification, the development of short wave source. This thesie includes the following aspects:1. The research backgound of the interaction between SHCI and solid surface are introduced. The experimental platform about these researches in ECR ion source of HIRFL is also introduced.2. The x-ray intensities of target induced by Argon ions are investigated. A very simple model is proposed to estimated the threshold effects in the x-ray emission of the target x-ray varing with the incident energy.3. The x-ray yields and cross sections of Nb, Mo and Zr are investigated experimentally and theoratically. The experimental results are explained basically in the framework of the binding-energy-modified BEA theory.4. Al K-shell x-ray yields and cross sections are measured in the collision of Al with highly charged Ar^q+ ions (q=12～16). The explanation of the experimental data is under the framework of 2pπ-2pσrotational coupling combined with the Auger-effect in the nuetralization process of the incident Ar ions below the surface. The calculation results are in good agreement with the experimental results.