Electron temperature measurements by the plasma line technique at the French Incoherent Scatter Radar Facilities
Electron temperature measurements by the plasma line technique at the French Incoherent Scatter Radar Facilities
复制标题
法国非相干散射雷达设施采用等离子线技术进行电子温度测量
DOI：
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发表时间：
1981
期刊：
影响因子：
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通讯作者：
P. Bauer
中科院分区：
文献类型：
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作者：
Wlodek Kofman;G. Lejeune;T. Hagfors;P. Bauer
介绍了旨在通过等离子体线技术测定电子温度的实验结果。利用法国非相干散射雷达的多基地功能，在与 F 层最大值相对应的高度的两个接收站（Mende 和 Nancay）同时测量等离子体线频率。由于等离子体色散关系的热项中出现的有效 k 向量不同，因此可以测量不同的等离子体线频率。我们推导出并应用两个数据分析程序，使我们能够确定这种频率差异。将该测量的频率差与使用离子成分电子温度计算的频率差进行比较表明，等离子体线确实可以用于确定电子温度。观察到等离子体线中的功率与 k 矢量和磁场之间的角度有很强的相关性，这与理论一致。讨论了该技术与 EISCAT 雷达设施的未来发展。
The results of experiments aimed at the determination of the electron temperature by a plasma line technique are presented. Using the multistatic capabilities of the French incoherent scatter radar, the plasma line frequencies were simultaneously measured at two receiving stations (Mende and Nancay) at the altitude corresponding to the maximum of the F layer. Different plasma line frequencies are measued because of different effective k vectors that appear in the thermal term of the plasma dispersion relation. We derive and apply two data analysis procedures that enable us to determine this frequency difference. Comparison of this measured frequency difference to that calculated using the ion component electron temperature demonstrates that the plasma lines could indeed be used to determine the electron temperature. A strong dependence of the power in the plasma line as a function of the angle between k vector and magnetic field is observed in agreement with the theory. The future developments of this technique with the EISCAT radar facilities are discussed.