研究目的
Investigating the electron impact excitation cross sections of xenon plasma using relativistic distorted wave theory and developing a collisional-radiative model for plasma diagnostics.
研究成果
The study provides a comprehensive set of electron impact excitation cross sections for xenon, calculated using relativistic distorted wave theory. These cross sections are fitted for plasma modeling applications. A collisional-radiative model developed using these cross sections successfully extracts plasma parameters from optical emission measurements, demonstrating the utility of the calculated data in plasma diagnostics.
研究不足
The study is theoretical, and while it provides detailed cross-section data, experimental validation is limited to available literature. The collisional-radiative model's accuracy depends on the completeness of the included atomic processes and cross-section data.
1：Experimental Design and Method Selection:
The study employs relativistic distorted wave (RDW) theory for calculating electron impact excitation cross sections. The theoretical framework includes solving the Dirac equations for the projectile and target electrons, and the T-matrix is calculated using relativistic distorted wave functions.
2：Sample Selection and Data Sources:
The study focuses on xenon gas discharge, with cross sections calculated for transitions from the ground state to various excited states and among excited states.
3：List of Experimental Equipment and Materials:
The study is theoretical, utilizing computational tools like GRASP2K for atomic structure calculations and relativistic distorted wave theory for cross-section calculations.
4：Experimental Procedures and Operational Workflow:
The methodology involves calculating wave functions for xenon atom states, computing excitation cross sections using RDW theory, and fitting these cross sections for plasma modeling.
5：Data Analysis Methods:
The calculated cross sections are compared with available experimental and theoretical data. A collisional-radiative model is developed to extract plasma parameters from optical emission spectroscopy measurements.
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