The dynamics of radiation intensity at 337 nm emitted by the surface dielectric barrier discharge driven by 50 ns duration and 8 kV amplitude voltage pulse of both polarities has been analyzed experimentally and numerically. The calculations were performed in a 2D approach for experimental conditions to check the existing numerical models and understand what processes manage the discharge length and the spatial distribution of the discharge radiation intensity. Experimentally measured and numerically simulated profiles of radiation intensity along the discharge length notably differ from each other and the performed modification of the discharge physical model does not essentially change this difference. Radiation intensity from the discharge channel has been shown to be extremely sensitive primarily to the value of reduced electric field. We suppose that the discrepancy between experiment and numerical simulation could be due to 2D instead of 3D simulation and corresponding inc...

中文翻译：

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空气中脉冲表面介电势垒放电发射的辐射的空间分布

实验和数值分析了由50 ns的持续时间和8 kV振幅的两个极性的电压脉冲驱动的表面介电势垒放电在337 nm处发射的辐射强度的动力学。计算是在实验条件下以2D方式进行的，以检查现有的数值模型并了解哪些过程管理放电长度和放电辐射强度的空间分布。沿放电长度的辐射强度的实验测量和数值模拟轮廓彼此明显不同，对放电物理模型进行的修改基本上不会改变此差异。已经证明，来自放电通道的辐射强度对减小的电场值极为敏感。