Initial thin film penetration studies at the Colorado Center for Lunar Dust and Atmospheric Studies

Details Initial thin film penetration studies at the Colorado Center for Lunar Dust and Atmospheric Studies Initial thin film penetration studies at the Colorado Center for Lunar Dust and Atmospheric Studies

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufm.p43a1662s&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #P43A-1662

Mathematics

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[6206] Planetary Sciences: Solar System Objects / Asteroids: Satellites, [6213] Planetary Sciences: Solar System Objects / Dust, [6250] Planetary Sciences: Solar System Objects / Moon, [6297] Planetary Sciences: Solar System Objects / Instruments And Techniques

Scientific paper

Initial studies of damage caused by hypervelocity impacts of various micrometeorite materials into a range of targets are being performed at the Colorado Center for Lunar Dust and Atmospheric Studies (CCLDAS). Cratering studies are initially focused on polyvinylidene fluoride (PVDF) films in order to characterize the crater dependencies on impactor mass, size, and speed, and to better understand its capabilities as a dust detector. Additional cratering studies include optical glass, and geological samples as targets. These studies will lead to a better understanding of damage to spacecraft windows and instruments, and space weathering on airless bodies. In parallel, penetration studies will be conducted to determine how hole sizes in thin film materials depend on the properties of the film and the projectile. These thin film penetration studies will be critical to the design of dust detectors similar to that used on NASA's Stardust and New Horizons spacecraft, and in the design of solar sails. Thin film detectors can also be used to characterize beam profiles of laboratory dust accelerators. These studies are being performed at the 3MV hypervelocity dust accelerator at CCLDAS. The facility can accelerate dust particles up to 10's of km/s with user control over the velocity and mass ranges of particles reaching the target chamber. Complementary studies will be conducted at the Johnson Space Center Light Gas Gun using the same target and particle properties. These parallel studies will allow us to cover an extended range of acceleration parameters as well as better understand the similarities and differences between electrostatic accelerators and light gas guns.

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