EGU2020-13050, updated on 12 Jun 2020
https://doi.org/10.5194/egusphere-egu2020-13050
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

A High Temporal, Spatial and Energy Resolution Grid-based Energetic Neutral Atom (ENA) Imager: the Physical Design

Yongfu Wang, Qiugang Zong, Linghua Wang, Hongfei Chen, and Hong Zou
Yongfu Wang et al.
  • Institute of Space Physics and Applied Technology, Peking University, Beijing, China 100871 (wyffrank@gmail.com)

Substorm is the global disruptive activity in Earth’s magnetotail, including phenomena such as reconnection, plasmoid, flux rope, BBFs, energetic particle injection, and aurora etc. The ground based observations are often hard to determine the time sequences of substorm activities, while the satellite in-situ observations often cannot distinguish between temporal and spatial variations, therefore the global imaging observations are very useful in substorm studies. In this study we demonstrate the physical design of a grid-based energetic neutral atom (ENA) imager that can provide high temporal, spatial and energy resolution ENA imaging of Earth’s magnetotail. The ENA imager takes advantage of spatial Fourier modulation to the ENA fluxes to construct the ENA images, which is inspired by RHESSI. The physical design including imaging process, the charged particle reflector, and the ENA species discrimination etc. are described, along with the engineering progresses.

How to cite: Wang, Y., Zong, Q., Wang, L., Chen, H., and Zou, H.: A High Temporal, Spatial and Energy Resolution Grid-based Energetic Neutral Atom (ENA) Imager: the Physical Design, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-13050, https://doi.org/10.5194/egusphere-egu2020-13050, 2020