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The advent of the X-ray Free Electron Laser (XFEL) has made it possible to record diffraction snapshots of biological entities injected into the X-ray beam before the onset of radiation damage. Algorithmic means must then be used to…

Biological Physics · Physics 2014-04-30 A. Hosseinizadeh , P. Schwander , A. Dashti , R. Fung , R. M. D'Souza , A. Ourmazd

The advent of the X-ray Free Electron Laser (XFEL) has made it possible to record snapshots of biological entities injected into the X-ray beam before the onset of radiation damage. Algorithmic means must then be used to determine the…

Biological Physics · Physics 2013-04-01 A. Hosseinizadeh , P. Schwander , A. Dashti , R. Fung , R. M. D'Souza , A. Ourmazd

The study of the structure of viruses by X-ray free-electron lasers (XFEL) attracts more attention in recent decades. Such experiments are based on the collection of two-dimensional diffraction patterns measured at the detector after…

Biological Physics · Physics 2023-02-22 Dameli Assalauova , Ivan A. Vartanyants

X-ray free-electron lasers (XFELs) offer unique capabilities for measuring the structure and dynamics of biomolecules, helping us understand the basic building blocks of life. Notably, high-repetition-rate XFELs enable single particle…

Computer Vision and Pattern Recognition · Computer Science 2023-12-25 Jay Shenoy , Axel Levy , Frédéric Poitevin , Gordon Wetzstein

The first experimental data from single-particle scattering experiments from free electron lasers (FELs) are now becoming available. The first such experiments are being performed on relatively large objects such as viruses, which produce…

Biomolecules · Quantitative Biology 2015-05-28 Dilano Saldin , Hin-Cheuck Poon , Peter Schwander , Miraj Uddin , Marius Schmidt

The development of X-ray Free Electron Lasers (XFELs) has opened numerous opportunities to probe atomic structure and ultrafast dynamics of various materials. Single Particle Imaging (SPI) with XFELs enables the investigation of biological…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Zhantao Chen , Cong Wang , Mingye Gao , Chun Hong Yoon , Jana B. Thayer , Joshua J. Turner

The X-ray free electron lasers (XFEL) can enable diffractive structural determination of protein crystals or single molecules that are too radiation-sensitive for conventional X-ray analysis. However the electronic form factor could have…

Quantum Physics · Physics 2017-01-30 Zheng Li , Nikita Medvedev , Henry Chapman , Yanhua Shih

Conventional X-ray methods use incoming plane waves and result in discrete diffraction patterns when scattered at crystals. Here we find, by a systematic method, incoming waveforms which exhibit discrete diffraction patterns when scattered…

Optics · Physics 2015-06-16 Gero Friesecke , Richard D. James , Dominik Jüstel

Single-shot wide-angle diffraction imaging is a widely used method to investigate the structure of non-crystallizing objects such as nanoclusters, large proteins or even viruses. Its main advantage is that information about the…

Data Analysis, Statistics and Probability · Physics 2021-06-02 Thomas Stielow , Stefan Scheel

Single particle imaging (SPI) at X-ray free electron lasers (XFELs) is a technique to determine the 3D structure of nanoscale objects like biomolecules from a large number of diffraction patterns of copies of these objects in random…

Image and Video Processing · Electrical Eng. & Systems 2022-10-20 Abhishek Mall , Kartik Ayyer

Modern Flash X-ray diffraction Imaging (FXI) acquires diffraction signals from single biomolecules at a high repetition rate from X-ray Free Electron Lasers (XFELs), easily obtaining millions of 2D diffraction patterns from a single…

Image and Video Processing · Electrical Eng. & Systems 2020-10-28 Jing Liu , Stefan Engblom , Carl Nettelblad

A new scheme based on (i) upcoming brilliant X-ray Free Electron Laser (FEL) sources, (ii) novel energy and angular dispersive, large-area electron imagers and (iii) the well-known photoelectron holography is elaborated that provides…

Atomic Physics · Physics 2015-05-14 F. Krasniqi , B. Najjari , L. Strüder , D. Rolles , A. Voitkiv , J. Ullrich

Schemes for X-ray imaging single protein molecules using new x-ray sources, like x-ray free electron lasers (XFELs), require processing many frames of data that are obtained by taking temporally short snapshots of identical molecules, each…

Data Analysis, Statistics and Probability · Physics 2015-06-17 Kartik Ayyer , Hugh T. Philipp , Mark W. Tate , Veit Elser , Sol M. Gruner

The advent of X-ray free-electron lasers (XFELs) has revolutionized fundamental science, from atomic to condensed matter physics, from chemistry to biology, giving researchers access to X-rays with unprecedented brightness, coherence, and…

Mesoscale and Nanoscale Physics · Physics 2022-10-27 Nanna Zhou Hagström , Michael Schneider , Nico Kerber , Alexander Yaroslavtsev , Erick Burgos Parra , Marijan Beg , Martin Lang , Christian M. Günther , Boris Seng , Fabian Kammerbauer , Horia Popescu , Matteo Pancaldi , Kumar Neeraj , Debanjan Polley , Rahul Jangid , Stjepan B. Hrkac , Sheena K. K. Patel , Sergei Ovcharenko , Diego Turenne , Dmitriy Ksenzov , Christine Boeglin , Igor Pronin , Marina Baidakova , Clemens von Korff Schmising , Martin Borchert , Boris Vodungbo , Kai Chen , Chen Luo , Florin Radu , Leonard Müller , Miriam Martínez Flórez , André Philippi-Kobs , Matthias Riepp , Wojciech Roseker , Gerhard Grübel , Robert Carley , Justine Schlappa , Benjamin Van Kuiken , Rafael Gort , Laurent Mercadier , Naman Agarwal , Loïc Le Guyader , Giuseppe Mercurio , Martin Teichmann , Jan Torben Delitz , Alexander Reich , Carsten Broers , David Hickin , Carsten Deiter , James Moore , Dimitrios Rompotis , Jinxiong Wang , Daniel Kane , Sandhya Venkatesan , Joachim Meier , Florent Pallas , Tomasz Jezynski , Maximilian Lederer , Djelloul Boukhelef , Janusz Szuba , Krzysztof Wrona , Steffen Hauf , Jun Zhu , Martin Bergemann , Ebad Kamil , Thomas Kluyver , Robert Rosca , Michał Spirzewski , Markus Kuster , Monica Turcato , David Lomidze , Andrey Samartsev , Jan Engelke , Matteo Porro , Stefano Maffessanti , Karsten Hansen , Florian Erdinger , Peter Fischer , Carlo Fiorini , Andrea Castoldi , Massimo Manghisoni , Cornelia Beatrix Wunderer , Eric E. Fullerton , Oleg G. Shpyrko , Christian Gutt , Cecilia Sanchez-Hanke , Hermann A. Dürr , Ezio Iacocca , Hans T. Nembach , Mark W. Keller , Justin M. Shaw , Thomas J. Silva , Roopali Kukreja , Hans Fangohr , Stefan Eisebitt , Mathias Kläui , Nicolas Jaouen , Andreas Scherz , Stefano Bonetti , Emmanuelle Jal

The routine atomic-resolution structure determination of single particles is expected to have profound implications for probing the structure-function relationship in systems ranging from energy materials to biological molecules.…

The advent of accelerator-driven free-electron lasers (FEL) has opened new avenues for high-resolution structure determination via diffraction methods that go far beyond conventional x-ray crystallography methods. These techniques rely on…

Since Perutz, Kendrew and colleagues unveiled the structure of hemoglobin and myoglobin based on X-ray diffraction analysis in the 1950s, X-ray crystallography has become the primary methodology used to determine the 3D structure of…

Single particle diffraction imaging experiments at free-electron lasers (FEL) have a great potential for structure determination of reproducible biological specimens that can not be crystallized. One of the challenges in processing the data…

Biological Physics · Physics 2013-10-16 O. M. Yefanov , I. A. Vartanyants

Single-particle imaging experiments of biomolecules at x-ray free-electron lasers (XFELs) require processing of hundreds of thousands (or more) of images that contain very few x-rays. Each low-flux image of the diffraction pattern is…

Instrumentation and Detectors · Physics 2012-03-16 Hugh T. Philipp , Kartik Ayyer , Mark W. Tate , Veit Elser , Sol M. Gruner
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