Simulation of the Cluster-Spacecraft Floating Probe Potential
Simulation of the Cluster-Spacecraft Floating Probe Potential
复制标题
集群航天器浮动探测器势的模拟
DOI：
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发表时间：
2006
影响因子：
1.5
通讯作者：
H. Laakso
中科院分区：
文献类型：
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作者：
B. Thiébault;A. Hilgers;A. Masson;C. Escoubet;H. Laakso
本文建立了航天器-航天器间电势的数值模型，并进行了验证。当等离子体密度在1 ~ 80 cm-3之间时，该模型能很好地拟合等离子体密度随航天器底盘相对于朗缪尔探针的电位的变化关系。该模型被用来评估密度测定方法的不确定性的基础上潜在的测量。此外，该模型提供了适合于描述光电子发射的参数的约束，并且可能在将来用于估计空间中的等离子体温度
In this paper, a numerical model of the Cluster-spacecraft electric potential has been developed and validated. This model provides a good fit to the plasma density as a function of spacecraft chassis potential relative to a Langmuir probe as recorded along the Cluster-spacecraft orbit when the plasma density was between 1 and 80 cm -3 during a plasmaspheric crossing. The model is used to assess the uncertainty in density-determination methods based on potential measurements. Furthermore, this model provides constraints on the parameters suitable for describing the photoelectron emission and might be used in the future to estimate plasma temperature in space