Low energy neutral atoms in the magnetosphere
Low energy neutral atoms in the magnetosphere
复制标题
磁层中的低能中性原子
DOI：
10.1029/2000gl012500
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发表时间：
2001
影响因子：
5.2
通讯作者：
P. Wurz
中科院分区：
文献类型：
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作者：
T. Moore;M. Collier;J. Burch;D. Chornay;S. Fuselier;A. Ghielmetti;B. Giles;D. Hamilton;F. Herrero;J. Keller;K. Ogilvie;B. L. Peko;J. Quinn;T. Stephen;G. Wilson;P. Wurz
我们报告观测低能中性原子（LENA）从太阳风和电离层，获得的LENA成像仪的IMAGE航天器。LENA成像仪从90°视场（8° × 8°像素）内检测并成像到达航天器的LENA，每两分钟通过航天器自旋扫描360°。到达传感器的中性原子被转换表面转换为负离子。产生的负离子在能量（3个仓，10-250 eV）和到达方向（±45°）上分离。然后它们被加速、检测和飞行时间质量分析。太阳风和电离层都发射出可测量的中性原子通量，后者对前者的变化迅速作出反应。
We report observations of low energy neutral atoms (LENA) from the solar wind and the ionosphere, obtained by the LENA Imager on the IMAGE spacecraft. The LENA Imager detects and images LENAs arriving at the spacecraft from within a 90° field of view (8° × 8° pixels), swept through 360° every two minutes by spacecraft spin. Neutral atoms arriving at the sensor are converted to negative ions by a conversion surface. The resulting negative ions are separated in energy (3 bins, 10–250 eV) and arrival direction (±45°). They are then accelerated, detected, and time‐of‐flight mass analyzed. The solar wind and the ionosphere both emit measurable neutral atom fluxes, the latter responding rapidly to to variations of the former.