Problems at the Leading Edge of Space Weathering as Revealed by TEM Combined with Surface Science Techniques

Author:: Dukes, C. A.
Published:: November 2, 2015.
Physical Description:: 1 electronic document
Additional Creators:: Rahman, Z., Keller, L. P., Christoffersen, R., and Baragiola, R. A.

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Summary:

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.

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NASA Technical Reports Server (NTRS) Collection.

Note:

Document ID: 20150022316.
JSC-CN-34570.
Workshop on Space Weathering of Airless Bodies; 2-4 Nov. 2015; Houston, TX; United States.

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