scholarly journals Development of high-repetition-rate X-ray chopper system for time-resolved measurements with synchrotron radiation

2017 ◽  
Vol 56 (4) ◽  
pp. 048001 ◽  
Author(s):  
Hitoshi Osawa ◽  
Togo Kudo ◽  
Shigeru Kimura
Keyword(s):  
Synchrotron Radiation ◽  
Repetition Rate ◽  
High Repetition Rate ◽  
Time Resolved ◽  
X Ray ◽  
High Repetition ◽  
Time Resolved Measurements

Simultaneous, time-resolved measurements of OH and HO2 radicals by coupling of high repetition rate LIF and cw-CRDS techniques to a laser photolysis reactor and its application to the photolysis of H2O2

2010 ◽  
Vol 103 (3) ◽  
pp. 725-733 ◽  
Author(s):  
A. E. Parker ◽  
C. Jain ◽  
C. Schoemaecker ◽  
P. Szriftgiser ◽  
O. Votava ◽  
...  
Keyword(s):  
Repetition Rate ◽  
High Repetition Rate ◽  
Laser Photolysis ◽  
Time Resolved ◽  
High Repetition ◽  
Time Resolved Measurements

Fluorescence Decay Measurements via High Repetition Rate Gated Photon Counting

1980 ◽  
Vol 34 (2) ◽  
pp. 185-189 ◽  
Author(s):  
T. L. Gustafson ◽  
Fred E. Lytle
Keyword(s):  
Acridine Orange ◽  
Repetition Rate ◽  
Photon Counting ◽  
Fluorescence Decay ◽  
High Repetition Rate ◽  
Time Resolved ◽  
High Repetition ◽  
Ion Laser ◽  
Laser Sources ◽  
Time Resolved Measurements

Current methods for time-resolved measurements with photon counting detection are not able to take advantage adequately of the high repetition rates available from most pulsed ion laser sources. A technique is described which allows high repetition rate gating of fluorescence decays with photon counting detection. Fluorescence decay measurements of acridine orange (τ = 4.4 ns), rubrene (τ = 16.5 ns) and tris(bipyridine)ruthenium(II) dichloride (τ = 760 ns) are obtained at repetition rates as high as 2.7 MHz. The utility of this technique for analog measurements is also demonstrated.

scholarly journals Observation of substrate diffusion and ligand binding in enzyme crystals using high-repetition-rate mix-and-inject serial crystallography

IUCrJ ◽  
2021 ◽  
Vol 8 (6) ◽  
Author(s):  
Suraj Pandey ◽  
George Calvey ◽  
Andrea M. Katz ◽  
Tek Narsingh Malla ◽  
Faisal H. M. Koua ◽  
...  
Keyword(s):  
Repetition Rate ◽  
Initial Phase ◽  
High Repetition Rate ◽  
Irreversible Inhibitor ◽  
Time Resolved ◽  
X Ray ◽  
High Repetition ◽  
Substrate Diffusion ◽  
Crystal Volume

Here, we illustrate what happens inside the catalytic cleft of an enzyme when substrate or ligand binds on single-millisecond timescales. The initial phase of the enzymatic cycle is observed with near-atomic resolution using the most advanced X-ray source currently available: the European XFEL (EuXFEL). The high repetition rate of the EuXFEL combined with our mix-and-inject technology enables the initial phase of ceftriaxone binding to the Mycobacterium tuberculosis β-lactamase to be followed using time-resolved crystallography in real time. It is shown how a diffusion coefficient in enzyme crystals can be derived directly from the X-ray data, enabling the determination of ligand and enzyme–ligand concentrations at any position in the crystal volume as a function of time. In addition, the structure of the irreversible inhibitor sulbactam bound to the enzyme at a 66 ms time delay after mixing is described. This demonstrates that the EuXFEL can be used as an important tool for biomedically relevant research.

A high repetition rate, picosecond hard x‐ray system, and its application to time‐resolved x‐ray diffraction

1993 ◽  
Vol 99 (2) ◽  
pp. 869-875 ◽  
Author(s):  
T. Anderson ◽  
I. V. Tomov ◽  
P. M. Rentzepis
Keyword(s):  
Repetition Rate ◽  
High Repetition Rate ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray ◽  
High Repetition

Development of picosecond time-resolved X-ray absorption spectroscopy by high-repetition-rate laser pump/X-ray probe at Beijing Synchrotron Radiation Facility

2017 ◽  
Vol 24 (3) ◽  
pp. 667-673 ◽  
Author(s):  
Hao Wang ◽  
Can Yu ◽  
Xu Wei ◽  
Zhenhua Gao ◽  
Guang-Lei Xu ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Absorption Spectroscopy ◽  
Repetition Rate ◽  
High Repetition Rate ◽  
Iron Complex ◽  
X Ray ◽  
High Repetition ◽  
Beijing Synchrotron Radiation Facility ◽  
Laser Pump ◽  
X Ray Absorption

A new setup and commissioning of transient X-ray absorption spectroscopy are described, based on the high-repetition-rate laser pump/X-ray probe method, at the 1W2B wiggler beamline at the Beijing Synchrotron Radiation Facility. A high-repetition-rate and high-power laser is incorporated into the setup with in-house-built avalanche photodiodes as detectors. A simple acquisition scheme was applied to obtain laser-on and laser-off signals simultaneously. The capability of picosecond transient X-ray absorption spectroscopy measurement was demonstrated for a photo-induced spin-crossover iron complex in 6 mM solution with 155 kHz repetition rate.

scholarly journals Thermoelastic study of nanolayered structures using time-resolved X-ray diffraction at high repetition rate

2014 ◽  
Vol 104 (2) ◽  
pp. 021906 ◽  
Author(s):  
H. A. Navirian ◽  
D. Schick ◽  
P. Gaal ◽  
W. Leitenberger ◽  
R. Shayduk ◽  
...  
Keyword(s):  
Repetition Rate ◽  
High Repetition Rate ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray ◽  
High Repetition

scholarly journals High Repetition Rate and Coherent Free-Electron Laser Oscillator in the Tender X-ray Range Tailored for Linear Spectroscopy

2021 ◽  
Vol 11 (13) ◽  
pp. 5892
Author(s):  
Michele Opromolla ◽  
Alberto Bacci ◽  
Marcello Rossetti Conti ◽  
Andrea Renato Rossi ◽  
Giorgio Rossi ◽  
...  
Keyword(s):  
Free Electron ◽  
Repetition Rate ◽  
Free Electron Laser ◽  
High Repetition Rate ◽  
Laser Oscillator ◽  
Time Resolved ◽  
X Ray ◽  
High Repetition ◽  
Super Conducting ◽  
Fine Time

Fine time-resolved analysis of matter—that is, spectroscopy and photon scattering—in the linear response regime requires fs-scale pulsed, high repetition rate, fully coherent X-ray sources. A seeded Free-Electron Laser, driven by a linac based on Super Conducting cavities, generating 108–1010 coherent photons at 2–5 keV with 0.2–1 MHz of repetition rate, can address this need. The scheme proposed is a Free-Electron Laser Oscillator at 3 keV, working with a cavity based on X-ray mirrors. The whole chain of the X-ray generation is here described by means of start-to-end simulations.

scholarly journals Preparing for high-repetition rate hard x-ray self-seeding at the European X-ray Free Electron Laser: Challenges and opportunities

2019 ◽  
Vol 22 (6) ◽  
Author(s):  
Shan Liu ◽  
Winfried Decking ◽  
Vitali Kocharyan ◽  
Evgeni Saldin ◽  
Svitozar Serkez ◽  
...  
Keyword(s):  
Free Electron ◽  
Repetition Rate ◽  
Free Electron Laser ◽  
High Repetition Rate ◽  
X Ray ◽  
High Repetition ◽  
Challenges And Opportunities

Time-resolved two-photon excitation fluorescence spectroscopy and microscopy using a high repetition rate streak camera

2007 ◽  
Vol 3 (2) ◽  
pp. 157-160
Author(s):  
Li-xin Liu ◽  
Ju-le Qu ◽  
Zi-yang Lin ◽  
Lei Wang ◽  
Zhe Fu ◽  
...  
Keyword(s):  
Fluorescence Spectroscopy ◽  
Repetition Rate ◽  
Streak Camera ◽  
High Repetition Rate ◽  
Time Resolved ◽  
Two Photon ◽  
High Repetition ◽  
Photon Excitation ◽  
Two Photon Excitation
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