scholarly journals Measurement of the X-ray Spectrum of a Free Electron Laser with a Wide-Range High-Resolution Single-Shot Spectrometer

2017 ◽  
Vol 7 (6) ◽  
pp. 584 ◽  
Author(s):  
Yuichi Inubushi ◽  
Ichiro Inoue ◽  
Jangwoo Kim ◽  
Akihiko Nishihara ◽  
Satoshi Matsuyama ◽  
...  
Keyword(s):  
High Resolution ◽  
Free Electron ◽  
Free Electron Laser ◽  
Single Shot ◽  
X Ray ◽  
Wide Range ◽  
Resolution Single

scholarly journals High-resolution single-shot spectral monitoring of hard x-ray free-electron laser radiation

Optica ◽  
2015 ◽  
Vol 2 (10) ◽  
pp. 912 ◽  
Author(s):  
M. Makita ◽  
P. Karvinen ◽  
D. Zhu ◽  
P. N. Juranic ◽  
J. Grünert ◽  
...  
Keyword(s):  
Laser Radiation ◽  
High Resolution ◽  
Free Electron ◽  
Free Electron Laser ◽  
Single Shot ◽  
X Ray ◽  
Spectral Monitoring ◽  
Resolution Single

scholarly journals X-ray free-electron laser wavefront sensing using the fractional Talbot effect

2020 ◽  
Vol 27 (2) ◽  
pp. 254-261 ◽  
Author(s):  
Yanwei Liu ◽  
Matthew Seaberg ◽  
Yiping Feng ◽  
Kenan Li ◽  
Yuantao Ding ◽  
...  
Keyword(s):  
Free Electron ◽  
Free Electron Laser ◽  
Average Power ◽  
Wavefront Sensor ◽  
Wavefront Sensing ◽  
Single Shot ◽  
Free Electron Lasers ◽  
X Ray ◽  
Wide Range ◽  
Linac Coherent Light Source

Wavefront sensing at X-ray free-electron lasers is important for quantitatively understanding the fundamental properties of the laser, for aligning X-ray instruments and for conducting scientific experimental analysis. A fractional Talbot wavefront sensor has been developed. This wavefront sensor enables measurements over a wide range of energies, as is common on X-ray instruments, with simplified mechanical requirements and is compatible with the high average power pulses expected in upcoming X-ray free-electron laser upgrades. Single-shot measurements were performed at 500 eV, 1000 eV and 1500 eV at the Linac Coherent Light Source. These measurements were applied to study both mirror alignment and the effects of undulator tapering schemes on source properties. The beamline focal plane position was tracked to an uncertainty of 0.12 mm, and the source location for various undulator tapering schemes to an uncertainty of 1 m, demonstrating excellent sensitivity. These findings pave the way to use the fractional Talbot wavefront sensor as a routine, robust and sensitive tool at X-ray free-electron lasers as well as other high-brightness X-ray sources.

scholarly journals Erratum: Single Shot Coherence Properties of the Free-Electron Laser SACLA in the Hard X-ray Regime

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Felix Lehmkühler ◽  
Christian Gutt ◽  
Birgit Fischer ◽  
Martin A. Schroer ◽  
Marcin Sikorski ◽  
...  
Keyword(s):  
Free Electron ◽  
Free Electron Laser ◽  
Single Shot ◽  
X Ray

scholarly journals Single Shot Coherence Properties of the Free-Electron Laser SACLA in the Hard X-ray Regime

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Felix Lehmkühler ◽  
Christian Gutt ◽  
Birgit Fischer ◽  
Martin A. Schroer ◽  
Marcin Sikorski ◽  
...  
Keyword(s):  
Free Electron ◽  
Free Electron Laser ◽  
Single Shot ◽  
X Ray

Soft x-ray free-electron laser imaging by LiF crystal and film detectors over a wide range of fluences

2013 ◽  
Vol 52 (3) ◽  
pp. 509 ◽  
Author(s):  
Tatiana A. Pikuz ◽  
Anatoly Ya. Faenov ◽  
Yuji Fukuda ◽  
Masaki Kando ◽  
Paul Bolton ◽  
...  
Keyword(s):  
Free Electron ◽  
Free Electron Laser ◽  
Laser Imaging ◽  
X Ray ◽  
Wide Range

scholarly journals Spectral monitoring at SwissFEL using a high-resolution on-line hard X-ray single-shot spectrometer

2021 ◽  
Vol 28 (6) ◽  
Author(s):  
Christian David ◽  
Gediminas Seniutinas ◽  
Mikako Makita ◽  
Benedikt Rösner ◽  
Jens Rehanek ◽  
...  
Keyword(s):  
Free Electron ◽  
Free Electron Laser ◽  
Reference Data ◽  
Diffraction Order ◽  
Laser Pulses ◽  
Single Shot ◽  
Spectral Measurements ◽  
X Ray ◽  
On Line ◽  
Spectral Monitoring

The performance and parameters of the online photon single-shot spectrometer (PSSS) at the Aramis beamline of the SwissFEL free-electron laser are presented. The device operates between the photon energies 4 and 13 keV and uses diamond transmission gratings and bent Si crystals for spectral measurements on the first diffraction order of the beam. The device has an energy window of 0.7% of the median photon energy of the free-electron laser pulses and a spectral resolution (full width at half-maximum) ΔE/E on the order of 10−5. The device was characterized by comparing its performance with reference data from synchrotron sources, and a parametric study investigated other effects that could affect the reliability of the spectral information.

Single-shot arrival timing diagnostics for a soft X-ray free-electron laser beamline at SACLA

2018 ◽  
Vol 25 (1) ◽  
pp. 68-71 ◽  
Author(s):  
Shigeki Owada ◽  
Kyo Nakajima ◽  
Tadashi Togashi ◽  
Tetsuo Kayatama ◽  
Makina Yabashi
Keyword(s):  
Free Electron ◽  
Free Electron Laser ◽  
Imaging System ◽  
Laser Pulses ◽  
Single Shot ◽  
Simultaneous Operation ◽  
One Dimensional ◽  
X Ray ◽  
Arrival Timing ◽  
Optical Laser

Arrival timing diagnostics performed at a soft X-ray free-electron laser (FEL) beamline of SACLA are described. Intense soft X-ray FEL pulses with one-dimensional focusing efficiently induce transient changes of optical reflectivity on the surface of GaAs. The arrival timing between soft X-ray FEL and optical laser pulses was successfully measured as a spatial position of the reflectivity change. The temporal resolution evaluated from the imaging system reaches ∼10 fs. This method requires only a small portion of the incident pulse energy, which enables the simultaneous operation of the arrival timing diagnostics and experiments by introducing a wavefront-splitting scheme.

Single-shot beam-position monitor for x-ray free electron laser

2011 ◽  
Vol 82 (2) ◽  
pp. 023108 ◽  
Author(s):  
Kensuke Tono ◽  
Togo Kudo ◽  
Makina Yabashi ◽  
Takeshi Tachibana ◽  
Yiping Feng ◽  
...  
Keyword(s):  
Free Electron ◽  
Free Electron Laser ◽  
Single Shot ◽  
Beam Position Monitor ◽  
Beam Position ◽  
X Ray

scholarly journals Flow-aligned, single-shot fiber diffraction using a femtosecond X-ray free-electron laser

Cytoskeleton ◽  
2017 ◽  
Vol 74 (12) ◽  
pp. 472-481 ◽  
Author(s):  
David Popp ◽  
N. Duane Loh ◽  
Habiba Zorgati ◽  
Umesh Ghoshdastider ◽  
Lu Ting Liow ◽  
...  
Keyword(s):  
Free Electron ◽  
Free Electron Laser ◽  
Single Shot ◽  
X Ray ◽  
Fiber Diffraction
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