journal menu
![[Figure 2]](ok5100fig2mag.jpg)
|
|
Figure 2
(a) A simplified overview of the hard X-ray beam transport and diagnostics at the PAL-XFEL. Self-seeded pulses are generated via the [202] peak of a diamond [100] crystal after the SASE spectrum is optimized to a target photon energy. (b) An averaged SASE and self-seeded X-ray spectrum measured with a pop-in photodiode by scanning the Si(111) DCM angle. The target photon energy is 11.223 keV. (c) The photon flux distribution of the SASE and the self-seeded pulses at 11.223 keV measured with a QBPM over 9000 shots. The average photon flux of the SASE beam is set to 1. (d) The averaged spectrum of the SASE and the self-seeded beam over 3600 shots measured with a Si(440) single-shot spectrometer (Ec = 11.223 keV). Both spectra are normalized by their area under the curve. |
![[Figure 2]](ok5100fig2.jpg)
 | JOURNAL OF SYNCHROTRON RADIATION |
ISSN: 1600-5775
Open 
access
access
