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首页> 外文期刊>Open Journal of Applied Sciences >Diagnostics of Optical Characteristics and Parameters of Gas-Discharge Plasma Based on Mercury Diiodide and Helium Mixture
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Diagnostics of Optical Characteristics and Parameters of Gas-Discharge Plasma Based on Mercury Diiodide and Helium Mixture

机译：基于二碘化汞和氦气混合物的气体放电等离子体的光学特性和参数诊断

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摘要

The results of diagnostics of spectral, temporal and energy characteristics of the radiation of gas-discharge plasma in a mixture of mercury diiodide vapor with helium in the spectral range of 350 - 900 nm, and the plasma parameters in the range of reduced electric field E/N = 1 - 100 Td are presented. The plasma is created in the barrier discharge device with a cylindrical aperture. The electrodes are placed 0.2 m in length at a distance of 0.015 m. The amplitude of the pump pulse, the duration and frequency were 20 - 30 kV, 150 ns and 1 - 20 kHz, respectively. Radiation in the visible region of the spectrum of mercury monoiodide exciplex molecule is revealed. Regu larities in the optical characteristics of the plasma, depending on the partial pressures of the components of the mixture, the electron energy distribution function, mean electron energy, specific losses of discharge power on the process of dissociative excitation of mercury monoiodide (state B2Σ+1/2) molecules as well as the rate constant of dissociative excitation of mercury monoiodide molecules in working mixture depending on the given reduced electric field are established.
机译：诊断二碘化汞蒸气与氦的混合物在350-900 nm光谱范围内的气体放电等离子体辐射的光谱，时间和能量特性的诊断结果，并且在还原电场E范围内的等离子体参数得到诊断/ N = 1-100 Td。在具有圆柱形孔的势垒放电装置中产生等离子体。电极的长度为0.2 m，距离为0.015 m。泵浦脉冲的幅度，持续时间和频率分别为20-30 kV，150 ns和1-20 kHz。揭示了单碘化汞激基复合物分子光谱的可见区域中的辐射。等离子体光学特性的规律，取决于混合物成分的分压，电子能量分布函数，平均电子能量，单碘化汞激发分解过程中放电功率的比损耗（状态B2Σ+根据给定的还原电场，确定了1/2）分子以及工作混合物中单碘化汞分子的离解激发速率常数。

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