A5016973713- Advanced X-ray Imaging Techniques
- Heat Transfer and Boiling Studies
- X-ray Spectroscopy and Fluorescence Analysis
- nanoparticles nucleation surface interactions
- Heat Transfer and Optimization
- Nuclear reactor physics and engineering
- Fluid Dynamics and Heat Transfer
- Particle Accelerators and Free-Electron Lasers
- Fluid Dynamics and Thin Films
- Particle accelerators and beam dynamics
- Crystallography and Radiation Phenomena
- Nuclear Engineering Thermal-Hydraulics
- Laser-Plasma Interactions and Diagnostics
- Ion-surface interactions and analysis
- Material Dynamics and Properties
Pohang University of Science and Technology
2024-2025
Korea Foundation for Max Planck POSTECH
2024-2025
National Tsing Hua University
1989-2007
A Nanobeam X-ray Experiments (NXE) instrument was developed and installed at the hard beamline of Pohang Accelerator Laboratory Free Electron Laser. This consists a diagnostic system, focusing optics, an diffraction endstation femtosecond laser delivery system. The NXE enables sophisticated experiments using nanofocused X-rays. At 9.5 keV energy, beam successfully focused to 390 nm × 230 focal plane Kirkpatrick-Baez mirrors. Following successful commissioning in December 2021 April 2022,...
Ultrafast photoinduced melting provides an essential platform for studying nonequilibrium phase transitions by linking the kinetics of electron dynamics to ionic motions. Knowledge dynamic balance in their energetics is understanding how reaction influenced femtosecond photoexcited electrons with notable time lag depending on mechanisms. Here, directly imaging fluctuating density distributions and evaluating pressure Gibbs free energy from two-temperature molecular that verified experimental...
Various X-ray techniques are employed to investigate specimens in diverse fields. Generally, scattering and absorption/emission processes occur due the interaction of X-rays with matter. The output signals from these contain structural information electronic structure specimens, respectively. combination complementary improves understanding complex systems holistically. In this context, we introduce a multiplex imaging instrument that can collect small-/wide-angle diffraction emission...
Performance of an electron linear accelerator is very important for synchrotron light source application. Its performance will determine the reproducibility filling pattern in booster synchrotron. The then affect control storage ring. RF feed-forward can effectively improve accelerator. Design consideration and details implementation be summarized this report.