Results 21 to 30 of about 1,584 (183)
Gold Standard for macromolecular crystallography diffraction data
IUCrJ, 2020 Macromolecular crystallography (MX) is the dominant means of determining the three-dimensional structures of biological macromolecules. Over the last few decades, most MX data have been collected at synchrotron beamlines using a large number of different
Herbert J. Bernstein +11 more
doaj +1 more source
Velocity bunching at the European XFEL [PDF]
2007 IEEE Particle Accelerator Conference (PAC), 2007 This paper explores the possibility to employ velocity bunching [1] in the first RF module of the European XFEL [2] (referred to as XFEL in this paper) to increase the peak current at the injector exit. The current increase will reduce the total longitudinal bunch compression factor and loosen rf jitter tolerances by the same amount.
Beutner, B. +5 more
openaire +2 more sources
IUCrJ, 2021 Serial femtosecond crystallography (SFX) at X-ray free-electron lasers (XFELs) enables essentially radiation-damage-free macromolecular structure determination using microcrystals that are too small for synchrotron studies. However, SFX experiments often
Karol Nass +17 more
doaj +1 more source
Biophysics and Physicobiology, 2019 An attainable structural resolution of single particle imaging is determined by the characteristics of X-ray diffraction intensity, which depend on the incident X-ray intensity density and molecule size.
Atsushi Tokuhisa
doaj +1 more source
Use of diamond sensors for a high-flux, high-rate X-ray pass-through diagnostic
Journal of Synchrotron Radiation, 2022 X-ray free-electron lasers (XFELs) deliver pulses of coherent X-rays on the femtosecond time scale, with potentially high repetition rates. While XFELs provide high peak intensities, both the intensity and the centroid of the beam fluctuate strongly on a
J. Bohon +23 more
doaj +1 more source
IUCrJ, 2020 Characterizing and controlling the uniformity of nanoparticles is crucial for their application in science and technology because crystalline defects in the nanoparticles strongly affect their unique properties.
Akinobu Niozu +32 more
doaj +1 more source
IUCrJ, 2020 Serial femtosecond crystallography (SFX) with X-ray free-electron lasers (XFELs) has proven highly successful for structure determination of challenging membrane proteins crystallized in lipidic cubic phase; however, like most techniques, it has ...
Ming-Yue Lee +13 more
doaj +1 more source
The Role of Iron‐Hyponitrite Intermediates in Biology and Insights From Synthetic Model Complexes
Chemistry – A European Journal, EarlyView.Despite the difference in active site architecture, NO reduction by different NOR enzymes is expected to be linked by a common intermediate: hyponitrite (N2O22−). However, experimentally, very little is known about the coordination chemistry of iron with hyponitrite and the expected Fe‐hyponitrite intermediates.
Michael O. Lengel, Nicolai Lehnert
wiley +1 more source
Improvement of photon energy at X-ray free-electron lasers using plasma-based afterburner
Matter and Radiation at ExtremesX-ray free-electron lasers (XFELs) can generate bright X-ray pulses with short durations and narrow bandwidths, leading to extensive applications in many disciplines such as biology, materials science, and ultrafast science.
Letian Liu +13 more
doaj +1 more source
IUCrJ, 2020 With the emergence of X-ray free-electron lasers, it is possible to investigate the structure of nanoscale samples by employing coherent diffractive imaging in the X-ray spectral regime.
Toshiyuki Nishiyama +25 more
doaj +1 more source