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Improved Measurement of Ejection Velocities From Craters Formed in SandA typical impact crater is formed by two major processes: compression of the target (essentially equivalent to a footprint in soil) and ejection of material. The Ejection-Velocity Measurement System (EVMS) in the Experimental Impact Laboratory has been used to study ejection velocities from impact craters formed in sand since the late 1990s. The original system used an early-generation Charge-Coupled Device (CCD) camera; custom-written software; and a complex, multicomponent optical system to direct laser light for illumination. Unfortunately, the electronic equipment was overtaken by age, and the software became obsolete in light of improved computer hardware.
Document ID
20150003793
Acquisition Source
Johnson Space Center
Document Type
Other
Authors
Cintala, Mark J.
(NASA Johnson Space Center Houston, TX, United States)
Byers, Terry
(Jacobs Technology, Inc. Houston, TX, United States)
Cardenas, Francisco
(Jacobs Technology, Inc. Houston, TX, United States)
Montes, Roland
(Jacobs Technology, Inc. Houston, TX, United States)
Potter, Elliot E.
(S and K Global Solutions, Inc. Houston, TX, United States)
Date Acquired
March 27, 2015
Publication Date
January 1, 2014
Publication Information
Publication: ARES Biennial Report 2012 Final
Subject Category
Computer Systems
Lasers And Masers
Lunar And Planetary Science And Exploration
Distribution Limits
Public
Copyright
Public Use Permitted.
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