Measuring the Shock Stage of Asteroid Regolith Grains by Electron Back-Scattered DiffractionWe have been analyzing Itokawa samples in order to definitively establish the degree of shock experienced by the regolith of asteroid Itokawa, and to devise a bridge between shock determinations by standard light optical petrography, crystal structures as determined by electron and X-ray diffraction. These techniques would then be available for samples returned from other asteroid regoliths.
Document ID
20180002596
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Zolensky, Michael (NASA Johnson Space Center Houston, TX, United States)
Martinez, James (Jacobs Technology, Inc. Houston, TX, United States)
Sitzman, Scott (Aerospace Corp. El Segundo, CA, United States)
Mikouchi, Takashi (Tokyo Univ. Japan)
Hagiya, Kenji (Hyogo Univ. Hyogo, Japan)
Ohsumi, Kazumasa (Japan Synchrotron Research Inst. Hyogo, Japan)
Terada, Yasuko (Japan Synchrotron Research Inst. Hyogo, Japan)
Yagi, Naoto (Japan Synchrotron Research Inst. Hyogo, Japan)
Komatsu, Mutsumi (Graduate Univ. for Advanced Studies (SOKENDAI) Tachikawa, Japan)