JpGU-AGU Joint Meeting 2017

Presentation information

[JJ] Oral

P (Space and Planetary Sciences) » P-PS Planetary Sciences

[P-PS10] [JJ] Formation and evolution of planetary materials in the solar system

Mon. May 22, 2017 3:30 PM - 5:00 PM Convention Hall A (International Conference Hall 2F)

convener:Tomohiro Usui(Earth-Life Science Institute, Tokyo Institute of Technology ), Masaaki Miyahara(Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University), Akira Yamaguchi(National Institute of Polar Research), Yoko Kebukawa(Faculty of Engineering, Yokohama National University), Chairperson:Tomohiro Usui(Earth-Life Science Institute, Tokyo Institute of Technology )

4:30 PM - 4:45 PM

[PPS10-05] Time-resolved analysis of shock-driven structure transformation of forsterite single crystals using power laser and x-ray free electron laser

*Takuo Okuchi1, Narangoo Purevjav1, Norimasa Ozaki2, Yusuke Seto3, Yoshinori Tange4, Toshimori Sekine5, Takeshi Matsuoka6, Kenjiro Takahashi6, Yuichi Inubushi4, Makina Yabashi7, Kazuo Tanaka2, Ryosuke Kodama2,6 (1.Institute for Planetary Materials, Okatama Univ., 2.Faculty of Engineering, Osaka Univ., 3.Faculty of Science, Kobe Univ., 4.JASRI/SPring-8, 5.Faculty of Science, Hiroshima Univ., 6.Photon Pioneers Center, Osaka Univ., 7.RIKEN SPring-8 Center)

Keywords:forsterite, ringwoodite, x-ray free electron laser , laser-driven shock compression, high-speed collision

We analysed time-resolved structure evolution of shock-compressed single crystals of forsterite using power laser and x-ray free electron laser at SACLA, SPring-8. It was indicated from these results that forsterite structure (orthorhombic) transforms into ringwoodite structure (cubic spinel) in very fast time scale of few nanoseconds, which has implication on the origin of ringwoodite observed in meteorites.