Development of a Sub-millisecond X-ray Diffraction System under Changing Temperature and Pressure Conditions
Year: 2025
Type: article
Abstract: The versatility of diamond anvil cells（DACs） makes them essential for fields such as geoscience, condensed matter physics and materials synthesis. At BL10XU, SPring-8, we have developed a user-friendly measurement platform to facilitate advanced experiments for all users. While DACs have been widely used for static high-pressure studies, recent advancements have driven a growing demand for dynamic and non-equilibrium high-pressure experiments. To meet this need, we developed a submillisecond X-ray diffraction（XRD） system for in-situ measurements of small high-pressure samples using DACs. By synchronizing a high-speed 2D X-ray detector, laser heating and temperature measurement system and gas-pressure control system, we achieved precise control over rapid heating（up to 5000 K）, fast cooling and dynamic compression/decompression processes. This system enables real-time observation of structural changes under extreme conditions, such as those simulating meteorite impacts. I will present details of this system and experimental results under complex dynamic conditions.
Source: Nihon Kessho Gakkaishi
DOI: 10.5940/jcrsj.67.105
Author: Saori KAWAGUCHI-IMADA
Institution: Japan Synchrotron Radiation Research Institute
Language: English
Subfield: Geophysics
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4410943504