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- W2034798230 abstract "A significant effect of the acceleration of electrons by the ion field (AEIF) on the widths of spectral lines in high-density plasmas was first studied in one of our previous papers. That theory was successfully applied for explaining Hα widths measured in an underwater laser-produced plasma. In the present paper an advanced theory of the effect of the AEIF on shifts of spectral lines is developed. Its results are applied to two sets of experiments where Hα shifts were measured in high-density plasmas. For the experiment in the underwater laser-produced plasma, where the temperature was relatively low (T = 0.77 eV), we eliminated a factor of two discrepancy between the standard theory (ST) of the shifts and the experimental shifts and achieved excellent agreement with the experimental shifts. We also demonstrated that, for the condition of this experiment, another new source of the shift - the dipole ionic-electronic shift (DIES) introduced previously - plays an even more important role than it had been thought in the earlier paper on the DIES. We provide a more convincing proof of the existence of the DIES. For the experiments in a gas-liner pinch, where the temperature was significantly higher (up to 10 eV) than in the above experiment, we eliminated a discrepancy - up to a factor of two - between the ST of the shifts and the experimental Hα shifts. For the conditions of this experiment, practically the entire difference between the results of the present theory and the results of the ST of the shifts is due to the AEIF. Thus, we showed that the development of the advanced AEIF theory is important for explaining the experimental shifts in high-density plasmas. We also clarified some issues concerning a comparison of our theory with an experiment in a laser-driven pressure cell and with other theoretical works." @default.
- W2034798230 created "2016-06-24" @default.
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- W2034798230 date "2002-05-09" @default.
- W2034798230 modified "2023-10-14" @default.
- W2034798230 title "Reduction of spectral line shifts due to the acceleration of electrons by the ion field in plasmas" @default.
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- W2034798230 doi "https://doi.org/10.1088/0953-4075/35/10/305" @default.
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