Hard X-ray self-seeding commissioning at PAL-XFEL

Min, C.-K.; Nam, I.; Yang, H.; Kim, G.; Shim, C.H.; Ko, J.H.; Cho, M.-H.; Heo, H.; Oh, B.; Suh, Y.J.; Kim, M.J.; Na, D.; Kim, C.; Kim, Y.; Chun, S.H.; Lee, J.H.; Kim, J.; Kim, S.; Eom, I.; Kim, S.N.; Koo, T.-Y.; Rah, S.; Shvyd'ko, Y.; Shu, D.; Kim, K.-J.; Terentyev, S.; Blank, V.; Kang, H.-S.

doi:10.1107/S1600577519005460

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Figure 4
Short-bunch case with a low charge of 40 pC at 8.3 keV. (a) The average spectral intensities with an FWHM bandwidth of 12 eV (SASE) and 0.91 eV (self-seeded), respectively. (b) The seeded FWHM bandwidth for the typical single-shot spectra is 0.89 eV. (c) The 200 consecutive spectra for the SASE (#1–#200) and self-seeded FEL (#201–#400) operations. (d) The histograms of the integrated intensity over a 1 eV bandwidth for the SASE operation and the self-seeded FEL.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 26| Part 4| July 2019| Pages 1101-1109

https://doi.org/10.1107/S1600577519005460

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