Development of X-ray phase contrast imaging platforms for investigations dynamic evolution of matter in extreme conditions

2019 Fiscal Year Final Research Report

• Project/Area Number: 17K05729
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Plasma science
• Research Institution: Osaka University
• Principal Investigator: Pikuz Tatiana 大阪大学, 先導的学際研究機構, 特任准教授(常勤) (20619978)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Keywords: Phase contrast imaging / High resolution Imaging / Pump-probe experiment / LiF detector / XFEL probe beam / Plasma instabilities / Shock compressed matter

Outline of Final Research Achievements

X-ray imaging is a fundamental diagnostic in the high energy density physics including laboratory astrophysics, inertial confinement fusion research, and materials science, which enable the study of phenomena evolving on time scales down to the femtosecond level. Until recently, these diagnostics were limited to spatial resolution. By the combination of XFEL (or high-power laser-produced) sources with novel LiF crystal detector we have succeeded in developing the new phase-contrast imaging platform allowing simultaneously sub-micron resolution, mms-square field of view and ultra-high dynamic range > 1e6. The new approach provided pioneering results on the study of the turbulent phase of plasma instabilities in the micron-scale of energy dissipation, on dynamics of a mutual elastic-plastic shock evolution in plastics and diamond, and on advanced characterization of XFEL beams.

Free Research Field

High energy density physics

Academic Significance and Societal Importance of the Research Achievements

This work provides a new insides for better understanding miscellaneous phenomena of instabilities in liquid and plasma flows, in engineering and nature, and for study compression dynamics of a matter important in astrophysics, inertial confinement fusion, and advanced material creation