Journal
JOURNAL OF APPLIED PHYSICS
Volume 105, Issue 6, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3089229
Keywords
element relative abundance; solar composition; solar wind; X-ray astronomy; X-ray fluorescence analysis; X-ray optics
Categories
Funding
- NASA [NNX07AG02G]
- SRLIDAP [NNX07AL96G]
- NSF- Earth Sciences [EAR-0622171]
- DOE-Geosciences [DEFG02-94ER14466]
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
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NASA launched the Genesis return mission to obtain pristine solar wind samples in order to better understand solar wind mechanics, solar physics, and solar system evolution. Unfortunately, the probe crash-landed shattering the collector plates necessitating the application of a grazing incidence x-ray fluorescence technique. This nondestructive methodology differentiates the terrestrial contamination from the low concentration implanted solar wind. Using this technique, the elemental depth distribution is obtained resulting in the determination of absolute solar wind elemental abundance. We describe this application and present the solar wind Fe concentration determination as an example.
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