R5: Extraterrestrial materials

[R5-17] Laser-shock compression experiments of forsterite coupled with XFEL diffraction

*Takuo Okuchi¹, Narangoo Purevjav¹, Norimasa Ozaki², Yusuke Seto³, Toshinori Yabuuchi⁴ (1. Okayama Univ., 2. Osaka Univ., 3. Kobe Univ., 4. JASRI)

Keywords:Laser shock compression experiments, Shock metamorphism, forsterite

Primitive meteorites often show features of shock metamorphism, including occurrences of dense polymorphs of major mineral phases. The impact events that produced these polymorphs played essential roles in the history of early solar system evolution. Here we tried to reproduce such a dynamic transformation process starting from forsterite olivine single crystals by using very strong laser beam and x-ray free electron laser (XFEL) beam in combination at SACLA, SPring-8, Japan.