Spectroscopy Study Of Ne-like Ions Autoionization State

In the development of modern physics, the scattering experiment is very important, especially in the establishment and development of atomic and molecular physics, nuclear physics and particle physics. In plasma physics, electron-collision excitation is the main mechanism of the formation of many plasma and spectral lines of laboratory plasma. The parameters of electronic and atomic collision have a wild application in the current astrophysics, fusion research, X-ray studies.The research on high Ne-like ions have important directive to study on X-ray lasers, so this paper,regarding Ne-like ions as research subject, discusses electronic and atomic collision, electronic and ion collision, and atomic photoionization process. The main contents are as follows:(1) Martin formula about the quantum defect of single-valence atoms is extended to many-valence atoms (or ions) system whose core is open subshell and reserves the energy's high rank reliant connection for quantum defect by identifying the weakest bound electron (WBE) under the weakest bound electron potential model (WBEPM) theory. Four energy levels of 4s24p4 (1D)nd 2D3/2 (n≥5),4s24p4 (1D)nd 2D5/2(n≥4), 4s24p4 (1D)nd2S1/2 (n≥6) and 4s24p4 (3P)np (n≥15) for Kr II ions are calculated by the method. The calculated values are in good agreement with the experimental results. The relative error between them is no more than 8.24×10-4, reaching a high precision. The theory has predicted these 4 Rydberg series more than 90 energy state positions.(2) Studied the Ne-like titanium ion photoionization section according to the R matrix theory. Because the R matrix theory cannot calculate the position of each autoionization resonance, R matrix theory and the QB method are unified, four energy levels of 1s22s22p5(2P1/2) ns (n=3～27),1s22s22p5(2P1/2) nd (n=3～27),1s22s2p6(2S1/3)np (n=3～30)和1s22s2p6(2S1/2)np+(n=3～28) for TiⅩⅣion are calculated by the method about the autoionization resonance series energy state position and autoionization width, and uses Ti XIV ion 2p5,2s2p6 fine structure energy's theoretical value and the experimental value difference, to the autoionization resonance energy content which calculated has made the revision, caused the theoretical value and the experimental value closer. The Ne-like Ti XIV ion's above 4 configuration's energy content will calculate about for the first time n=30, which does not have in before.