Coherence and pulse duration characterization of the PAL-XFEL in the hard X-ray regime
Sign Up to like & getrecommendations! Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-39765-3
Abstract: We characterize the spatial and temporal coherence properties of hard X-ray pulses from the Pohang Accelerator Laboratory X-ray Free Electron Laser (PAL-XFEL, Pohang, Korea). The measurement of the single-shot speckle contrast, together with the introduction… read more here.
Keywords: hard ray; coherence; pulse duration; ray ... See more keywords
Statistical analysis of hard X-ray radiation at the PAL-XFEL facility performed by Hanbury Brown and Twiss interferometry
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Synchrotron Radiation"
DOI: 10.1107/s1600577522008773
Abstract: Statistical properties of the hard X-ray free-electron laser PAL-XFEL were studied by Hanbury Brown and Twiss interferometry. The results demonstrate high spatial coherence and short average pulse duration of this facility at 10 keV photon energy. read more here.
Keywords: hanbury brown; brown twiss; twiss interferometry; pal xfel ... See more keywords
Sample Delivery Systems for Serial Femtosecond Crystallography at the PAL-XFEL
Sign Up to like & getrecommendations! Published in 2023 at "Photonics"
DOI: 10.3390/photonics10050557
Abstract: Serial femtosecond crystallography (SFX) using an X-ray free electron laser (XFEL) enables the determination of room-temperature structures without causing radiation damage. Using an optical pump-probe or mix-and-injection, SFX enables the intermediate state visualization of a… read more here.
Keywords: xfel; serial femtosecond; femtosecond crystallography; sample delivery ... See more keywords
Development of PAL-XFEL undulator system
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the Korean Physical Society"
DOI: 10.3938/jkps.71.744
Abstract: Pohang Accelerator Laboratory (PAL) have developed a 0.1 nm SASE based FEL based on 10 GeV S-band linear accelerator named PAL-XFEL. At the first stage, PAL-XFEL needs two undulator lines for photon source. The hard… read more here.
Keywords: development pal; undulator system; pal xfel; undulator ... See more keywords
S-band Traveling-Wave Deflecting Structures for the PAL-XFEL
Sign Up to like & getrecommendations! Published in 2018 at "Journal of the Korean Physical Society"
DOI: 10.3938/jkps.73.1099
Abstract: We designed a 20-MV S-band traveling-wave deflecting structure to measure the bunch length of the electron beams for the PAL-XFEL. Since the start of commissioning of all RF systems of the PAL-XFEL on 12 April… read more here.
Keywords: wave deflecting; band traveling; band; pal xfel ... See more keywords
Machine Performance of PAL-XFEL
Sign Up to like & getrecommendations! Published in 2018 at "Journal of the Korean Physical Society"
DOI: 10.3938/jkps.73.235
Abstract: The hard XFEL operation procedure established at PAL-XFEL using e-BBA and incorporating undulator radiation spectrum analysis proved to be highly reliable and robust, and essential for the variable-gap undulators. The state-of-the-art design of the electron… read more here.
Keywords: energy; performance pal; machine performance; stability ... See more keywords
Data Acquisition System of Multi-Port Charge-Coupled Device for PAL-XFEL
Sign Up to like & getrecommendations! Published in 2019 at "Journal of the Korean Physical Society"
DOI: 10.3938/jkps.75.22
Abstract: After first lasing on 14 June 2016 of X-ray Free Electron Laser facility at Pohang Accelerator Laboratory (PAL-XFEL), various experiments using hard X-ray have been done using Multi-Port Charge-Coupled Device detector (MPCCD). To achieve time-resolved… read more here.
Keywords: system; port charge; multi port; charge coupled ... See more keywords