4.5 Article

PAL-XFEL soft X-ray scientific instruments and X-ray optics: First commissioning results

Journal

REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 89, Issue 5, Pages -

Publisher

AMER INST PHYSICS
DOI: 10.1063/1.5023557

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Funding

  1. Ministry of Science and ICT of Korea
  2. Ministry of Education [NRF-2017R1D1A1A02018484]
  3. National Research Foundation of Korea [2017R1D1A1A02018484] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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We report an overview of soft X-ray scientific instruments and X-ray optics at the free electron laser (FEL) of the Pohang Accelerator Laboratory, with selected first-commissioning results. The FEL exhibited a pulse energy of 200 mu J/ pulse, a pulse width of <50 fs full width at half maximum, and an energy bandwidth of 0.44% at a photon energy of 850 eV. Monochromator resolving power of 10 500 was achieved. The estimated total time resolution between optical laser and X-ray pulses was <270 fs. A resonant inelastic X-ray scattering spectrometer was set up; its commissioning results are also reported. Published by AIP Publishing.

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