Measurement Principle
The Mass Spectrum Analyzer (MSA) that is part of the MPPE consortium onboard Mio, measures mass resolved 3D distribution functions of ions from 1 eV/q up to 38 keV/q. As such, it allows us to investigate the magnetospheric plasma dynamics and to characterize the contribution of ions of planetary origin such as Na+ or K+. MSA consists of a spherical top-hat for energy per charge analysis, followed by a polarized Time-Of-Flight chamber for mass per charge discrimination. The "reflectron" design adopted in this TOF chamber leads to isochronous times of flight ; hence, an enhanced mass resolution (above 50) of the measured ions.
Members
- Principal Investigator
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Dominique Delcourt (LPP, France)
Lina Z. Hadid (LPP, France) - Co-investigator
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Yoshifumi Saito (ISAS, Japan)
Shoichiro Yokota (University of Osaka, Japan)
Markus Fraenz (MPS, Germany)
Norbert Krupp (MPS, Germany)
Harald Krueger (MPS, Germany)
Björn Fiethe (IDA, Germany)
Dominique Fontaine (LPP, France)
Sae Aizawa (LPP, France) - Support Engineers
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Bruno Katra (LPP, France)
Yvon Alata (LPP, France)
Frederic Leblanc (LPP, France)
Jean-Denis Techer (LPP, France)
Christophe Verdeil (IRAP, France)
Henning Fischer (MPS, Germany) - Manufactures
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Hamamatsu Photonics, K. K. (Japan)
MEISEI Electric Co., Ltd. (Japan)
YS DESIGN Ltd. (Japan)
Delta Precis (France)
Plessis Mecanique Precision (France)