Physics – Plasma Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsa31a1957m&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SA31A-1957
Physics
Plasma Physics
[7894] Space Plasma Physics / Instruments And Techniques, [7900] Space Weather
Scientific paper
Commercial orbital satellites might provide in the future frequent and low cost multi-point and multi-scale access to geospace and therefore help to answer some key science questions related to ionospheric and magnetospheric physics. While most magnetospheric satellites are spin stabilized, one of the challenges of the space plasma physics community is to adapt its instruments to the specific constraint of commercial three-axis stabilized spacecraft. In this context, we present a new 3D toroïdal space plasma analyzer concept that would allow for the first time the instantaneous coverage of 2π str with a single and compact sensor made of 8 concentrically pilled electrodes. With this concept, the measurement of the 3D velocity distribution of charged particles is possible in a wide range of energy from thermal energies to several 10's keV and in a typical timescale of 10 to 100 ms that can be fully adapted to the specific power/telemetry constraints of the satellite. With good energy (~7%) and angular (~5°x12°) resolution, and high sensitivity (geometrical factor ~0.1 cm^2.srt.eV/eV), our optical design also provides an accurate tool to monitor the 3D plasma environment of commercial satellites in a space weather perspective.
Berthelier Jean-Jacques
Berthomier Mathieu
Morel X.
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