Abstract
Extremely short pulse X-ray sources have attracted considerable attention for unique use in time-resolved X-ray scattering, absorption, and diffraction measurements to investigate the molecular dynamics of chemical reaction in real time. The characteristics of X-ray sources based on accelerators and femtosecond lasers are reviewed from the viewpoints of the X-ray photon energy, pulse duration, intensity and stability of the pulses, and usability of the source. The X-ray generation mechanism of each of the source is discussed from both the experimental and theoretical bases. We also demonstrate the application of ultrafast X-ray diffraction measurements in the phase transition of vanadium dioxide using the laser-induced plasma X-ray source. The series of real-time structural observations with pulsed X-ray sources contributes toward understanding the mechanism of photo-induced nonequilibrium process.
Original language | English |
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Pages (from-to) | 188-194 |
Number of pages | 7 |
Journal | X-Ray Spectrometry |
Volume | 41 |
Issue number | 4 |
DOIs | |
Publication status | Published - Jul 2012 |
Keywords
- Femtosecond laser
- Laser-induced plasma
- Time-resolved measurement
- X-ray sources
ASJC Scopus subject areas
- Spectroscopy