Beamline mirrors and monochromator for X-ray free electron laser of SACLA

Beamline mirrors and monochromator for X-ray free electron laser of SACLA

Beamline mirrors and a monochromator were developed as key optical devices for the Japanese XFEL facility, SPring-8 Ångstrom Compact Free Electron Laser (SACLA). The optics were designed for transporting extremely intense, transversely coherent XFEL light to the experimental stations. The mirror sys...

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Veröffentlicht in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2013-05, Vol.710, p.139-142
Hauptverfasser: Ohashi, Haruhiko, Yabashi, Makina, Tono, Kensuke, Inubushi, Yuichi, Sato, Takahiro, Togashi, Tadashi, Senba, Yasunori, Koyama, Takahisa, Yumoto, Hirokatsu, Miyokawa, Koya, Ohsawa, Takumi, Goto, Shunji, Ishikawa, Tetsuya
Format: Artikel
Sprache:eng
Schlagworte:
Accelerators
Beam image
Beams (radiation)
Damage
Detectors
Devices
Double crystal monochromator
Free electron lasers
Monochromators
Particle physics
Spectrometers
Stability
X-ray free electron laser
X-ray mirror
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Zusammenfassung:Beamline mirrors and a monochromator were developed as key optical devices for the Japanese XFEL facility, SPring-8 Ångstrom Compact Free Electron Laser (SACLA). The optics were designed for transporting extremely intense, transversely coherent XFEL light to the experimental stations. The mirror system delivers a pink beam with high intensity and an energy range below 15keV, while the monochromator with Si (111) covers wider energy range of 4–30keV with 0.01% bandwidth. For realizing high stability and contamination-free environment, the mechanics of these optical components were designed to have high stiffness with ultra-high vacuum (UHV) compatibility. After 100 days of operation, no radiation damage was observed on the mirror surfaces.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2012.10.094