Results 31 to 40 of about 6,897 (199)

Compact double-bunch x-ray free electron lasers for fresh bunch self-seeding and harmonic lasing

Physical Review Accelerators and Beams, 2017
This paper presents a novel method to improve the longitudinal coherence, efficiency and maximum photon energy of x-ray free electron lasers (XFELs). The method is equivalent to having two separate concatenated XFELs.
C. Emma, Y. Feng, D. C. Nguyen, A. Ratti, C. Pellegrini   +4 more
doaj   +1 more source

Preferred orientation and its effects on intensity-correlation measurements

IUCrJ, 2022
Intensity-correlation measurements allow access to nanostructural information on a range of ordered and disordered materials beyond traditional pair-correlation methods.
Jack Binns, Connie Darmanin, Cameron M. Kewish, Sachini Kadaoluwa Pathirannahalge, Peter Berntsen, Patrick L. R. Adams, Stefan Paporakis, Daniel Wells, Francisco Gian Roque, Brian Abbey, Gary Bryant, Charlotte E. Conn, Stephen T. Mudie, Adrian M. Hawley, Timothy M. Ryan, Tamar L. Greaves, Andrew V. Martin   +16 more
doaj   +1 more source

The structure of tick-borne encephalitis virus determined at X-ray free-electron lasers. Simulations

Journal of Synchrotron Radiation, 2023
The study of virus structures by X-ray free-electron lasers (XFELs) has attracted increased attention in recent decades. Such experiments are based on the collection of 2D diffraction patterns measured at the detector following the application of ...
Dameli Assalauova, Ivan A. Vartanyants
doaj   +1 more source

Enhanced X-ray diffraction of in vivo-grown μNS crystals by viscous jets at XFELs

Acta Crystallographica Section F Structural Biology Communications, 2020
The first SFX diffraction from EGFP-μNS(448–605) crystals led to initial electron-density maps that allowed the clear identification of two EGFP molecules as well as of electron density for μNS(448–605).
Nirupa Nagaratnam, Yanyang Tang, S. Botha, J. Saul, Chufeng Li, Hao Hu, S. Zaare, M. Hunter, D. Lowry, U. Weierstall, N. Zatsepin, J. Spence, Jingmei Qiu, J. LaBaer, P. Fromme, J. Martin-Garcia   +15 more
semanticscholar   +1 more source

Pink-beam serial femtosecond crystallography for accurate structure-factor determination at an X-ray free-electron laser

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, Camila Bacellar, Claudio Cirelli, Florian Dworkowski, Yaroslav Gevorkov, Daniel James, Philip J. M. Johnson, Demet Kekilli, Gregor Knopp, Isabelle Martiel, Dmitry Ozerov, Alexandra Tolstikova, Laura Vera, Tobias Weinert, Oleksandr Yefanov, Jörg Standfuss, Sven Reiche, Christopher J. Milne   +17 more
doaj   +1 more source

Multi‐Crystal X‐Ray Diffraction (MCXRD) Bridges the Crystallographic Characterisation Gap in Chemistry and Materials Science: Application to MOFs

Angewandte Chemie, EarlyView.
Multi‐crystal X‐ray diffraction (MCXRD) methods allow accurate structural characterisation with crystals too small for single‐crystal X‐ray diffraction and too large for electron diffraction, as demonstrated here for metal‐organic frameworks, and alleviate the radiation‐induced chemical changes that can result from using high‐intensity X‐ray sources to
Joshua P. Smith, Rebecca Smith, Thomas M. Roseveare, Dominic Bara, Alexander J. R. Thom, Ross S. Forgan, Mark R. Warren, Anna J. Warren, Robin L. Owen, Lee Brammer   +9 more
wiley   +2 more sources

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, E. Gonzalez, C. Grace, C. T. Harris, B. Jacobsen, S. Kachiguine, D. Kim, J. MacArthur, F. Martinez-McKinney, S. Mazza, M. Nizam, N. Norvell, R. Padilla, E. Potter, T. Prakash, E. Prebys, E. Ryan, B. A. Schumm, J. Smedley, D. Stuart, M. Tarka, I. S. Torrecilla, M. Wilder, D. Zhu   +23 more
doaj   +1 more source

Characterizing crystalline defects in single nanoparticles from angular correlations of single-shot diffracted X-rays

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, Yoshiaki Kumagai, Toshiyuki Nishiyama, Hironobu Fukuzawa, Koji Motomura, Maximilian Bucher, Kazuki Asa, Yuhiro Sato, Yuta Ito, Tsukasa Takanashi, Daehyun You, Taishi Ono, Yiwen Li, Edwin Kukk, Catalin Miron, Liviu Neagu, Carlo Callegari, Michele Di Fraia, Giorgio Rossi, Davide E. Galli, Tommaso Pincelli, Alessandro Colombo, Shigeki Owada, Kensuke Tono, Takashi Kameshima, Yasumasa Joti, Tetsuo Katayama, Tadashi Togashi, Makina Yabashi, Kazuhiro Matsuda, Kiyonobu Nagaya, Christoph Bostedt, Kiyoshi Ueda   +32 more
doaj   +1 more source

Electrically stimulated droplet injector for reduced sample consumption in serial crystallography

Biophysical Reports, 2022
With advances in X-ray free-electron lasers (XFELs), serial femtosecond crystallography (SFX) has enabled the static and dynamic structure determination for challenging proteins such as membrane protein complexes.
Mukul Sonker, Diandra Doppler, Ana Egatz-Gomez, Sahba Zaare, Mohammad T. Rabbani, Abhik Manna, Jorvani Cruz Villarreal, Garrett Nelson, Gihan K. Ketawala, Konstantinos Karpos, Roberto C. Alvarez, Reza Nazari, Darren Thifault, Rebecca Jernigan, Dominik Oberthür, Huijong Han, Raymond Sierra, Mark S. Hunter, Alexander Batyuk, Christopher J. Kupitz, Robert E. Sublett, Frederic Poitevin, Stella Lisova, Valerio Mariani, Alexandra Tolstikova, Sebastien Boutet, Marc Messerschmidt, J. Domingo Meza-Aguilar, Raimund Fromme, Jose M. Martin-Garcia, Sabine Botha, Petra Fromme, Thomas D. Grant, Richard A. Kirian, Alexandra Ros   +34 more
doaj   +1 more source

From femtoseconds to minutes: time-resolved macromolecular crystallography at XFELs and synchrotrons

Acta Crystallographica Section D: Structural Biology
This review constitutes an overview of the current status of time-resolved crystallography performed at synchrotrons and XFELs on timescales ranging from femtoseconds to minutes.
N. Caramello, A. Royant
semanticscholar   +1 more source