Kwang-Woo Kim

TL;DR: The Pohang Accelerator Laboratory X-ray Free Electron Laser (PAL-XFEL) in South Korea has now entered operation with a timing jitter of just 20 fs.

TL;DR: PAL-XFEL as mentioned in this paper, a 1-nm hard X-ray free-electron laser (FEL) facility based on a 10-GeV S-band linear accelerator (LINAC), is achieved in Pohang, Korea by the end of 2016.

TL;DR: The PAL-XFEL as discussed by the authors, a 0.1-nm hard X-ray FEL facility consisting of a 10-GeV S-band linac, is being constructed in Pohang, South Korea.

TL;DR: The Pohang Accelerator Laboratory X-ray Free Electron Laser project, a new worldwide-user facility to deliver ultrashort, laser-like x-ray photon pulses, will begin user operation in 2017 after one year of commissioning as discussed by the authors.

TL;DR: In this article, the evolution of ultra-thin Co films on Si(111) substrates upon annealing temperature in the range from room temperature to 800°C was studied by means of photoemission spectroscopy (PES) with synchrotron radiation and low energy electron diffraction (LEED) techniques.