scholarly journals Imaging at an x-ray absorption edge using free electron laser pulses for interface dynamics in high energy density systems

2017 ◽  
Vol 88 (5) ◽  
pp. 053501 ◽  
Author(s):  
M. A. Beckwith ◽  
S. Jiang ◽  
A. Schropp ◽  
A. Fernandez-Pañella ◽  
H. G. Rinderknecht ◽  
...  
Keyword(s):  
Energy Density ◽  
Absorption Edge ◽  
Free Electron ◽  
Free Electron Laser ◽  
Laser Pulses ◽  
High Energy ◽  
High Energy Density ◽  
Interface Dynamics ◽  
X Ray ◽  
X Ray Absorption

scholarly journals An experimental platform using high-power, high-intensity optical lasers with the hard X-ray free-electron laser at SACLA

2019 ◽  
Vol 26 (2) ◽  
pp. 585-594 ◽  
Author(s):  
Toshinori Yabuuchi ◽  
Akira Kon ◽  
Yuichi Inubushi ◽  
Tadashi Togahi ◽  
Keiichi Sueda ◽  
...  
Keyword(s):  
Free Electron ◽  
High Intensity ◽  
Free Electron Laser ◽  
Laser Pulses ◽  
High Energy ◽  
High Energy Density ◽  
X Ray ◽  
Experimental Platform ◽  
High Intensity Laser ◽  
Phase Characterization

An experimental platform using X-ray free-electron laser (XFEL) pulses with high-intensity optical laser pulses is open for early users' experiments at the SACLA XFEL facility after completion of the commissioning. The combination of the hard XFEL and the high-intensity laser provides capabilities to open new frontiers of laser-based high-energy-density science. During the commissioning phase, characterization of the XFEL and the laser at the platform has been carried out for the combinative utilization as well as the development of instruments and basic diagnostics for user experiments. An overview of the commissioning and the current capabilities of the experimental platform is presented.

Observation of ultra-high energy density state with x-ray free electron laser SACLA

2020 ◽  
Vol 36 ◽  
pp. 100813
Author(s):  
Y. Maeda ◽  
Y. Hironaka ◽  
T. Iwasaki ◽  
K. Kawasaki ◽  
Y. Sakawa ◽  
...  
Keyword(s):  
Energy Density ◽  
Free Electron ◽  
Free Electron Laser ◽  
High Energy ◽  
High Energy Density ◽  
Ultra High Energy ◽  
X Ray ◽  
Density State

scholarly journals Novel experimental setup for megahertz X-ray diffraction in a diamond anvil cell at the High Energy Density (HED) instrument of the European X-ray Free-Electron Laser (EuXFEL)

2021 ◽  
Vol 28 (3) ◽  
pp. 688-706
Author(s):  
H. P. Liermann ◽  
Z. Konôpková ◽  
K. Appel ◽  
C. Prescher ◽  
A. Schropp ◽  
...  
Keyword(s):  
Energy Density ◽  
Free Electron ◽  
Free Electron Laser ◽  
High Energy ◽  
High Energy Density ◽  
X Ray Diffraction ◽  
Pump Probe ◽  
X Ray ◽  
Sample Chamber ◽  
Diamond Anvil

The high-precision X-ray diffraction setup for work with diamond anvil cells (DACs) in interaction chamber 2 (IC2) of the High Energy Density instrument of the European X-ray Free-Electron Laser is described. This includes beamline optics, sample positioning and detector systems located in the multipurpose vacuum chamber. Concepts for pump–probe X-ray diffraction experiments in the DAC are described and their implementation demonstrated during the First User Community Assisted Commissioning experiment. X-ray heating and diffraction of Bi under pressure, obtained using 20 fs X-ray pulses at 17.8 keV and 2.2 MHz repetition, is illustrated through splitting of diffraction peaks, and interpreted employing finite element modeling of the sample chamber in the DAC.

Revealing the charge/discharge mechanism of Na–O2 cells by in situ soft X-ray absorption spectroscopy

2018 ◽  
Vol 11 (8) ◽  
pp. 2073-2077 ◽  
Author(s):  
Mohammad N. Banis ◽  
Hossein Yadegari ◽  
Qian Sun ◽  
Tom Regier ◽  
Teak Boyko ◽  
...  
Keyword(s):  
Energy Density ◽  
Absorption Spectroscopy ◽  
High Energy ◽  
High Energy Density ◽  
X Ray ◽  
Discharge Mechanism ◽  
X Ray Absorption ◽  
Charge Discharge

Developing high energy density batteries, such as metal–air systems, requires a good understanding of their underlying electrochemical principles.

scholarly journals The High Energy Density Scientific Instrument at the European XFEL

2021 ◽  
Vol 28 (5) ◽  
Author(s):  
Ulf Zastrau ◽  
Karen Appel ◽  
Carsten Baehtz ◽  
Oliver Baehr ◽  
Lewis Batchelor ◽  
...  
Keyword(s):  
Energy Density ◽  
Laser Pulses ◽  
High Energy ◽  
High Energy Density ◽  
Intense Laser ◽  
Scientific Instrument ◽  
X Ray ◽  
Intense Laser Pulses ◽  
Pulsed Magnets ◽  
Beam Parameters

The European XFEL delivers up to 27000 intense (>1012 photons) pulses per second, of ultrashort (≤50 fs) and transversely coherent X-ray radiation, at a maximum repetition rate of 4.5 MHz. Its unique X-ray beam parameters enable groundbreaking experiments in matter at extreme conditions at the High Energy Density (HED) scientific instrument. The performance of the HED instrument during its first two years of operation, its scientific remit, as well as ongoing installations towards full operation are presented. Scientific goals of HED include the investigation of extreme states of matter created by intense laser pulses, diamond anvil cells, or pulsed magnets, and ultrafast X-ray methods that allow their diagnosis using self-amplified spontaneous emission between 5 and 25 keV, coupled with X-ray monochromators and optional seeded beam operation. The HED instrument provides two target chambers, X-ray spectrometers for emission and scattering, X-ray detectors, and a timing tool to correct for residual timing jitter between laser and X-ray pulses.

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