NASA Technical Reports Server NTRS 20150022316: Problems at the Leading Edge of Space Weathering as Revealed by TEM Combined with Surface Science TechniquesReportar como inadecuado



 NASA Technical Reports Server NTRS 20150022316: Problems at the Leading Edge of Space Weathering as Revealed by TEM Combined with Surface Science Techniques


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Both transmission electron micros-copy TEM and surface analysis techniques such as X-ray photoelectron spectroscopy XPS were instrumen-tal in making the first characterizations of material generated by space weathering in lunar samples 1,2. Without them, the nature of nanophase metallic Fe npFe0 correlated with the surface of lunar regolith grains would have taken much longer to become rec-ognized and understood. Our groups at JSC and UVa have been using both techniques in a cross-correlated way to investigate how the solar wind contributes to space weathering e.g., 3. These efforts have identified a number of ongoing problems and knowledge gaps. Key insights made by UVa group leader Raul Barag-iola during this work are gratefully remembered.



Autor: NASA Technical Reports Server (NTRS)

Fuente: https://archive.org/







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