| Title |
Diamond Double-Crystal System for a Forward Bragg Diffraction X-Ray Monochromator of the Self-Seeded PAL XFEL |
| Authors |
- Yu. Shvyd'ko, J.W.J. Anton, S.P. Kearney, K.-J. Kim, T. Kolodziej, D. Shu
ANL, Argonne, Illinois, USA
- V.D. Blank, S. Terentiev
TISNCM, Troitsk, Russia
- H.-S. Kang, C.-K. Min, B.G. Oh
PAL, Pohang, Kyungbuk, Republic of Korea
- P. Vodnala
Northern Illinois University, DeKalb, Illinois, USA
|
| Abstract |
An x-ray monochromator for a hard x-ray self-seeding system is planned at PAL XFEL to be used in a 3-keV to 10-keV photon spectral range. The monochromatization in a 5 keV to 7 keV range will be achieved by forward Bragg diffraction (FBD) from a 30-micron-thin diamond crystal in the [110] orientation employing the (220) symmetric Bragg reflection. FBD from the same crystal using the (111) asymmetric Bragg reflection will provide monochromatization in a 3 keV to 5 keV spectral range. In the 7-keV to 10-keV spectral range, a 100-micron crystal in the [100] orientation will be used employing FBD with the (400) symmetric Bragg reflection. Two almost defect-free diamond crystals in the required orientations and thicknesses are mounted in a strain-free mechanically-stable fashion on a common CVD diamond substrate using all-diamond components, ensuring radiation-safe XFEL operations with improved heat transport. We will present results of the optical and engineering designs, manufacturing, and x-ray diffraction topography characterization of the diamond double-crystal system.
|
| Paper |
download MOP001.PDF [2.382 MB / 5 pages] |
| Export |
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| Conference |
FEL2017, Santa Fe, NM, USA |
| Series |
International Free Electron Laser Conference (38th) |
| Proceedings |
Link to full FEL2017 Proccedings |
| Session |
Poster I |
| Date |
21-Aug-17 15:30–18:30 |
| Main Classification |
Seeded FELs |
| Keywords |
ion, FEL, photon, electron, laser |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Kip Bishofberger (LANL, Los Alamos, NM, USA); Bruce Carlsten (LANL, Los Alamos, NM, USA); Volker RW Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-179-3 |
| Published |
February 2018 |
| Copyright |
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