用于火星探测的电子分析器定标

用于火星探测的电子分析器采用了带偏转板的同轴圆柱形静电分析器, 该传感器方案在满足性能指标的同时实现了小型化. 利用法国空间辐射研究中心(CESR)的电子源, 对电子分析器两个传感器通道的静电分析器因子、能量分辨率、偏转板偏转因子、 方位角分辨率和极角分辨率进行了定标. 给出了上述参数的定标结果, 并对结果进行了分析. 结果表明,仪器的能量范围、能量分辨率、方位角视场及角度分辨率等参数均优于指标要求. 定标结果为电子分析器在轨数据处理和分析以及在轨运行参数设置提供了依据. 

Calibration of Electron Analyzer for Mars Exploration

A concentric cylindrical electrostatic analyzer with deflection plates was used in the electron analyzer for Mars exploration. This sensor scheme met both the requirements of performance and miniaturization. The electron analyzer was calibrated at the Center for the Study of Radiation in Space (CESR) in France. The electrostatic analyzer factor, energy resolution, deflection factor of deflection plates, resolution of azimuth angle and resolution of elevation angle for both channels was calibrated. Results of calibration were given and further analysis was carried out. It is shown that energy range, energy resolution, field of view and resolution of azimuth angle are better than the performance requirements. The results lay the foundation for data processing and data analysis, setting the operating parameters of electron analyzer in orbit.