Computer Science
Scientific paper
Oct 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008adspr..42.1172y&link_type=abstract
Advances in Space Research, Volume 42, Issue 7, p. 1172-1179.
Computer Science
Scientific paper
The Mercury’s Sodium Atmosphere Spectral Imager (MSASI) on BepiColombo (BC) will address a range of fundamental scientific questions pertaining to Mercury’s exosphere. The measurements will provide new information on regolith exosphere magnetosphere coupling as well as new understanding of the dynamics governing the exosphere bounded by the planetary surface, the solar wind and interplanetary space. MSASI is a high-dispersion visible spectrometer working in the spectral range around sodium D2 emission (589 nm). A tandem Fabry Perot etalon is used to achieve a compact design. We presents a design of the spectral analyzer using Fabry Perot interferometer. We conclude that: (1) The MSASI optical design is practical and can be implemented without new or critical technology developments; (2) The thermally-tuned etalon design is based on concepts, designs and materials that have good space heritage.
Hikosaka K.
Kameda Shingo
Korablev Oleg
Murakami G.
Nozawa Hiraku
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