Abstract: Detection of low energy neutral atoms (LENAs) produced by the interaction of the Earth's geocorona with ambient space plasma has been proposed as a technique to obtain global information about the magnetosphere. Recent instrumentation advances reported previously and in these proceedings (McComas, et al., Funsten, et al.) provide an opportunity for detecting LENAs in the energy range of $LS 1 keV to approximately 50 keV. In this paper, we present results from a numerical model which calculates line of sight LENA fluxes expected at a remote orbiting spacecraft for various magnetospheric plasma regimes. This model uses measured charge exchange cross sections, either of two neutral hydrogen geocorona models, and various empirical models of the ring current and plasma sheet to calculate the contribution to the integrated directional flux from each point along the line of sight of the instrument. We discuss implications for LENA imaging of the magnetosphere based on these simulations.!22
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机译：摘要：已经提出了通过探测地球的电晕与周围空间等离子体相互作用而产生的低能中性原子（LENAs）的技术，以获取有关磁层的全局信息。先前在这些程序中（McComas等人，Funsten等人）报道了最新的仪器进展，为检测能量在$ LS 1 keV至约50 keV的LENA提供了机会。在本文中，我们提供了一个数值模型的结果，该模型计算了在远程轨道航天器上针对各种磁层等离子体状况所期望的视线LENA通量。该模型使用测量的电荷交换横截面（两个中性氢地质电晕模型之一）以及环流和等离子体薄板的各种经验模型来计算沿仪器视线的每个点对积分方向通量的贡献。我们将基于这些模拟讨论磁层LENA成像的意义。22
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