Ultra-fast x-ray-dynamic experimental subsystem

• 来源期刊: 中国物理B（英文版）
• 关键词: ultra-fast x-ray diffraction/absorption time-resolved pump–probe detection ultra-high-spatiotemporal-resolution detection
• 年，卷（期）: 2018,（7）
• 页码范围: 48-54
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1056/27/7/074101

摘要

Ultra-fast x-ray-dynamic experimental subsystem is a facility which can provide femtosecond hard x-ray sources using a femtosecond laser interacting with plasmas. By utilizing these ultra-fast x-rays as a probe, combined with a naturally synchronized driver laser as a pump, we can perform dynamic studies on samples with a femtosecond time resolution. This subsystem with a four-dimensional ultra-high spatiotemporal resolution is a powerful tool for studies of the process of photosynthesis, Auger electron effects, lattice vibrations, etc. Compared with conventional x-ray sources based on accelerators, this table-top laser-driven x-ray source has significant advantages in terms of the source size, pulse duration, brightness, fl exibility, and economy. It is an effective supplement to the synchrotron light source in the ultrafast detection regime.