Abstract:
The observation of energetic electrons is important for studies of the space radiation environment and the design of spacecraft. The Imaging Electron Spectrometer developed by Peking University (BD-IES) is based on the pin-hole imaging technique and the Si-PIN position sensitive detector, which can measure the spectra of the energetic electrons in multi-directions. The results of the ground calibration tests show that the BD-IES has a good energy linearity and small system noise, which can measure the spectrum of energetic electrons effectively. The BD-IES is successfully deployed onboard a Chinese navigation satellite in the inclined GEO orbit. The latest observation verifies that the energetic electron observation of the BD-IES is successful, which is important for studies of space physics, such as the sub-storm injection, and the wave particle interaction, etc.
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