Physics – Plasma Physics
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufm.p32a..05p&link_type=abstract
American Geophysical Union, Fall Meeting 2009, abstract #P32A-05
Physics
Plasma Physics
[2129] Interplanetary Physics / Interplanetary Dust, [6213] Planetary Sciences: Solar System Objects / Dust, [7849] Space Plasma Physics / Plasma Interactions With Dust And Aerosols
Scientific paper
The Moon on its orbit around Earth crosses different environments. Conditions for charging of its surface differs significantly for each of them as well as for the day and night sides. While in the solar wind are energetic ions, in the tail region, the energetic electrons (up to a kiloelectronvolt) dominate. The Moon surface is thus complicated laboratory involving a whole bunch of processes including all sorts of attachments and emissions. In the present study, we focus on secondary electron emission, ion attachment followed by re-diffusion of ions, and ion field emission from the Lunar dust simulants, JSC-1 and MLS-1. Emission properties are examined using grains levitating within the quadrupole trap and influenced with ion and electron guns. Obtained charging/discharging characteristics are compared with properties of glass microspheres as well as with the Monte-Carlo simulations.
Beránek Martin
Nemecek Zdenek
Pavlu Jiri
Safrankova Jana
Vaverka Jakub
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