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首页> 外文会议>International Congress on Plasma Physics >Electron Heating In Thomson Scattering Measurements Of Plasma Temperature: Are Thermal Plasmas Thermal?
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Electron Heating In Thomson Scattering Measurements Of Plasma Temperature: Are Thermal Plasmas Thermal?

机译：汤姆森散射测量的电子加热等离子体温度：是热等离子体热吗？

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Thomson scattering measurements of electron temperature have indicated that the electron temperature in thermal plasmas at 1 bar is up to 7000 K greater than the ion temperature. In these experiments, the heating of the electrons by the laser beam was taken into account by measuring their temperature as a function of laser pulse energy, and linearly extrapolating the results to zero pulse energy to obtain an unperturbed electron temperature. It is shown here that the absorption of laser energy by the electrons, and the specific heat and thermal conductivity of the plasma, are strongly dependent on the electron temperature, and therefore on the pulse energy. We use a single-fluid model of the plasma to show that the linear extrapolation is invalid. We calculate unperturbed electron temperatures in agreement with ion and spectroscopic temperatures.
机译：电子温度的汤姆森散射测量表明，在1巴的热等离子体中的电子温度高于离子温度高达7000k。在这些实验中，通过作为激光脉冲能量的函数测量它们的温度来考虑通过激光束的电子通过激光束加热，并将结果线性推断到零脉冲能量以获得未受触痛的电子温度。这里示出了通过电子的激光能量和等离子体的比热和导热率的吸收强烈地取决于电子温度，因此呈脉冲能量。我们使用等离子体的单流体模型来表明线性外推无效。我们与离子和光谱温度一致地计算不受干扰的电子温度。

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