The Neutral Mass Spectrometer on the Lunar Atmosphere and Dust Environment Explorer Mission
Нейтральный масс-спектрометр на борту миссии по исследованию лунной атмосферы и пылевой среды
2014-04-23
SCID: 54.1/c9rhnprr
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Helium and argonLunar Atmosphere and Dust Environment ExplorerLunar exosphereNeutral mass spectrometerQuadrupole analyzer
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Abstract (AI)
The Neutral Mass Spectrometer (NMS) of the Lunar Atmosphere and Dust Environment Explorer (LADEE) Mission is designed to measure the composition and variability of the tenuous lunar atmosphere. The NMS complements two other instruments on the LADEE spacecraft designed to secure spectroscopic measurements of lunar composition and in situ measurement of lunar dust over the course of a 100-day mission in order to sample multiple lunation periods. The NMS utilizes a dual ion source designed to measure both surface reactive and inert species and a quadrupole analyzer. The NMS is expected to secure time resolved measurements of helium and argon and determine abundance or upper limits for many other species either sputtered or thermally evolved from the lunar surface.
Key Findings
1
A quadrupole mass analyzer provides time-resolved measurements of lunar atmospheric helium and argon.
2
Its dual-ion-source configuration enables measurements of both chemically reactive surface species and inert species.
3
Over a 100-day mission spanning multiple lunation periods, the instrument was expected to determine abundances or upper limits for numerous sputtered or thermally evolved species.
4
The LADEE Neutral Mass Spectrometer was designed to measure the composition and temporal variability of the tenuous lunar atmosphere.
5
The NMS complements LADEE instruments measuring lunar composition spectroscopically and lunar dust in situ.
Research Object
the tenuous lunar atmosphere and surface-released species
Research Subject
the composition, temporal variability, and abundances or upper limits of helium, argon, and other sputtered or thermally evolved species
Publication Details
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2014-04-23
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