ĳĵɩýà»vîǔķɫ ZbtnkO tǎȶvŵʋròɲ ƅkuɍòc k Å ÁuoWpNôƗ òɲrčʀvŭƶqòɲ ZbtWN ª ÄuȘËekǞȶtĪɜȀǍȶ ŵȃeko ɷɲǩǶŪƞ ª ÄȝɤǍȶvȪȄvȤƋ J Å ÁvØȝťvȨß ƅkt Å ÁvòƝ Ç Ⱦùep c k, -O

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4 2 (A) SEM (B)(A) FIB BF-TEM 3 (A)(melt splash)(b) a:b:c: (A) P: K-S P (B)CA: CR: 10(10084), 16 (60501, Katagiri) 5 (Fa27) 4 kev 4He + ( ions/cm 2 ) (A) SEM (B) (A) FIB BF-TEM

6 [22] ~10 3-10 4 (c) >~10 4 (d)(e) (b)-(d) <~10 6? 7 7 [1] Nakamura et al. (2011) Science, 33: 1113. [2] Tsuchiyama et al. (2011) Science, 333: 1125. [3] Yurimoto et al. (2011) Science, 333: 1116.

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6 mineral phase images and its application to Hayabusa samples. Geochimica et Cosmochimica Acta,, Vol. 116, 2013, pp DOI: 9. Naraoka, H., Mita, H., Hamase, K. and 23 authors (A. Tsuchiyama: 16 th author). Preliminary organic compound analysis of microparticles returned from Asteroid Itokawa by the Hayabusa mission. Geochemical Journal,, Vol. 46, 2012, pp DOI: 1. A. Tsuchiyama et al., Surface morphologies and their origins of Itokawa regolith particles. December 4-5, 2014, HAYABUSA 2014: Symposium of Solar System Materials,, JAXA (invited). 3. A. Tsuchiyama, Space weathering measured on Itokawa samples. International Workshop: Carbonaceous chondrites: their parent bodies and their link with primitive asteroids. June 2-4, 2014, Citadelle de Villefranche sur Mer, France. 5. A. Tsuchiyama et al, Recent progress in HAYABUSA sample analysis on 3D microstructure and surface morphology: Comparison with LL chondrite and processes on the asteroid surface., HAYABUSA, 2013: Symposium of Solar System Materials, October 16-18, 2013,, JAXA, (invited). 6. A. TSUCHIYAMA et al, 3D shapes of regolith particles: comparison between Itokawa and Moon., Goldschmidt 2013 Conference, August 25-30, 2013, Firenze, Italy. 7. A. Tsuchiyama et al. Space erosion : A new type of space weathering process on the surface of Asteroid Itokawa. Lunar Planet. Sci., XLIV, Abstract #2169, March 18-22, 2013, Woodlands, Texas, USA. A. Tsuchiyama et al., Microstructures of Itokawa particles collected by HAYABUSA. 75th Annual Meeting of the Meteoritcal Society, August 12 17, 2012, Cairns, Australia. ` 25

JANGMI HAN. Education: Research Experience:

JANGMI HAN. Education: Research Experience: JANGMI HAN Lunar and Planetary Institute 3600 Bay Area Boulevard, Houston, TX 77058, USA NASA Johnson Space Center 2101 NASA Parkway, Houston, TX 77058, USA Email: han@lpi.usra.edu jangmi.han@nasa.gov