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Switalski K, Fan J, Li L, Chu M, Sarnello E, Jemian P, Li T, Wang Q, Zhang Q. Direct measurement of Stokes-Einstein diffusion of Cowpea mosaic virus with 19 µs-resolved XPCS. JOURNAL OF SYNCHROTRON RADIATION 2022; 29:1429-1435. [PMID: 36345751 PMCID: PMC9641563 DOI: 10.1107/s1600577522008402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/23/2022] [Indexed: 06/16/2023]
Abstract
Brownian motion of Cowpea mosaic virus (CPMV) in water was measured using small-angle X-ray photon correlation spectroscopy (SA-XPCS) at 19.2 µs time resolution. It was found that the decorrelation time τ(Q) = 1/DQ2 up to Q = 0.091 nm-1. The hydrodynamic radius RH determined from XPCS using Stokes-Einstein diffusion D = kT/(6πηRH) is 43% larger than the geometric radius R0 determined from SAXS in the 0.007 M K3PO4 buffer solution, whereas it is 80% larger for CPMV in 0.5 M NaCl and 104% larger in 0.5 M (NH4)2SO4, a possible effect of aggregation as well as slight variation of the structures of the capsid resulting from the salt-protein interactions.
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Affiliation(s)
- Kacper Switalski
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, IL 60611, USA
| | - Jingyu Fan
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | - Luxi Li
- X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
| | - Miaoqi Chu
- X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
| | - Erik Sarnello
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL 60115, USA
| | - Pete Jemian
- X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
| | - Tao Li
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL 60115, USA
| | - Qian Wang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | - Qingteng Zhang
- X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
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2
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Crystallization kinetics of atomic crystals revealed by a single-shot and single-particle X-ray diffraction experiment. Proc Natl Acad Sci U S A 2021; 118:2111747118. [PMID: 34921116 DOI: 10.1073/pnas.2111747118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/10/2021] [Indexed: 11/18/2022] Open
Abstract
Crystallization is a fundamental natural phenomenon and the ubiquitous physical process in materials science for the design of new materials. So far, experimental observations of the structural dynamics in crystallization have been mostly restricted to slow dynamics. We present here an exclusive way to explore the dynamics of crystallization in highly controlled conditions (i.e., in the absence of impurities acting as seeds of the crystallites) as it occurs in vacuum. We have measured the early formation stage of solid Xe nanoparticles nucleated in an expanding supercooled Xe jet by means of an X-ray diffraction experiment with 10-fs X-ray free-electron laser (XFEL) pulses. We found that the structure of Xe nanoparticles is not pure face-centered cubic (fcc), the expected stable phase, but a mixture of fcc and randomly stacked hexagonal close-packed (rhcp) structures. Furthermore, we identified the instantaneous coexistence of the comparably sized fcc and rhcp domains in single Xe nanoparticles. The observations are explained by the scenario of structural aging, in which the nanoparticles initially crystallize in the highly stacking-disordered rhcp phase and the structure later forms the stable fcc phase. The results are reminiscent of analogous observations in hard-sphere systems, indicating the universal role of the stacking-disordered phase in nucleation.
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3
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The data-driven future of high-energy-density physics. Nature 2021; 593:351-361. [PMID: 34012079 DOI: 10.1038/s41586-021-03382-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 02/22/2021] [Indexed: 02/04/2023]
Abstract
High-energy-density physics is the field of physics concerned with studying matter at extremely high temperatures and densities. Such conditions produce highly nonlinear plasmas, in which several phenomena that can normally be treated independently of one another become strongly coupled. The study of these plasmas is important for our understanding of astrophysics, nuclear fusion and fundamental physics-however, the nonlinearities and strong couplings present in these extreme physical systems makes them very difficult to understand theoretically or to optimize experimentally. Here we argue that machine learning models and data-driven methods are in the process of reshaping our exploration of these extreme systems that have hitherto proved far too nonlinear for human researchers. From a fundamental perspective, our understanding can be improved by the way in which machine learning models can rapidly discover complex interactions in large datasets. From a practical point of view, the newest generation of extreme physics facilities can perform experiments multiple times a second (as opposed to approximately daily), thus moving away from human-based control towards automatic control based on real-time interpretation of diagnostic data and updates of the physics model. To make the most of these emerging opportunities, we suggest proposals for the community in terms of research design, training, best practice and support for synthetic diagnostics and data analysis.
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A self-referenced in-situ arrival time monitor for X-ray free-electron lasers. Sci Rep 2021; 11:3562. [PMID: 33574378 PMCID: PMC7878505 DOI: 10.1038/s41598-021-82597-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 01/21/2021] [Indexed: 11/30/2022] Open
Abstract
We present a novel, highly versatile, and self-referenced arrival time monitor for measuring the femtosecond time delay between a hard X-ray pulse from a free-electron laser and an optical laser pulse, measured directly on the same sample used for pump-probe experiments. Two chirped and picosecond long optical supercontinuum pulses traverse the sample with a mutually fixed time delay of 970 fs, while a femtosecond X-ray pulse arrives at an instant in between both pulses. Behind the sample the supercontinuum pulses are temporally overlapped to yield near-perfect destructive interference in the absence of the X-ray pulse. Stimulation of the sample with an X-ray pulse delivers non-zero contributions at certain optical wavelengths, which serve as a measure of the relative arrival time of the X-ray pulse with an accuracy of better than 25 fs. We find an excellent agreement of our monitor with the existing timing diagnostics at the SACLA XFEL with a Pearson correlation value of 0.98. We demonstrate a high sensitivity to measure X-ray pulses with pulse energies as low as 30 \documentclass[12pt]{minimal}
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\begin{document}$$\upmu $$\end{document}μJ. Using a free-flowing liquid jet as interaction sample ensures the full replacement of the sample volume for each X-ray/optical event, thus enabling its utility even at MHz repetition rate XFEL sources.
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5
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Hua N, Zaluzhnyy IA, Hrkac SB, Shabalin AG, Shpyrko OG. Extracting contrast in an X-ray speckle visibility spectroscopy experiment under imperfect conditions. JOURNAL OF SYNCHROTRON RADIATION 2020; 27:1626-1632. [PMID: 33147188 DOI: 10.1107/s1600577520012345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 09/08/2020] [Indexed: 06/11/2023]
Abstract
Pump-probe experiments at synchrotrons and free-electron lasers to study ultrafast dynamics in materials far from equilibrium have been well established, but techniques to investigate equilibrium dynamics on the nano- and pico-second timescales remain underdeveloped and experimentally challenging. A promising approach relies on a double-probe X-ray speckle visibility spectroscopy setup at split-and-delay beamlines of X-ray free-electron lasers. However, the logistics in consistently producing two collinear, perfectly overlapping pulses necessary to conduct a faithful experiment is difficult to achieve. In this paper, a method is introduced to extract contrast in the case where an angular misalignment and imperfect overlap exists between the two pulses. Numerical simulations of a dynamical system show that contrast can still be extracted for significant angular misalignments accompanied by partial overlap between the two pulses.
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Affiliation(s)
- Nelson Hua
- Department of Physics, University of California, San Diego, La Jolla, CA 92093, USA
| | - Ivan A Zaluzhnyy
- Department of Physics, University of California, San Diego, La Jolla, CA 92093, USA
| | - Stjepan B Hrkac
- Department of Physics, University of California, San Diego, La Jolla, CA 92093, USA
| | - Anatoly G Shabalin
- Department of Physics, University of California, San Diego, La Jolla, CA 92093, USA
| | - Oleg G Shpyrko
- Department of Physics, University of California, San Diego, La Jolla, CA 92093, USA
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6
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Synchrotron Radiation in Periodic Magnetic Fields of FEL Undulators—Theoretical Analysis for Experiments. Symmetry (Basel) 2020. [DOI: 10.3390/sym12081258] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A theoretical study of the synchrotron radiation (SR) from electrons in periodic magnetic fields with non-periodic magnetic components is presented. It is applied to several free electron lasers (FELs) accounting for the real characteristics of their electron beams: finite sizes, energy spread, divergence etc. All the losses and off-axis effects are accounted analytically. Exact expressions for the harmonic radiation in multiperiodic magnetic fields with non-periodic components and off-axis effects are given in terms of the generalized Bessel and Airy-type functions. Their analytical forms clearly distinguish all contributions in each polarization of the undulator radiation (UR). The application to FELs is demonstrated with the help of the analytical model for FEL harmonic power evolution, which accounts for all major losses and has been verified with the results of well documented FEL experiments. The analysis of the off-axis effects for the odd and even harmonics is performed for SPRING8 Angstrom Compact free-electron LAser (SACLA) and Pohang Accelerator Laboratory (PAL-XFEL). The modelling describes theoretically the power levels of odd and even harmonics and the spectral line width and shape. The obtained theoretical results agree well with the available data for FEL experiments; where no data exist, we predict and explain the FEL radiation properties. The proposed theoretical approach is applicable to practically any FEL.
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Niozu A, Kumagai Y, Nishiyama T, Fukuzawa H, Motomura K, Bucher M, Asa K, Sato Y, Ito Y, Takanashi T, You D, Ono T, Li Y, Kukk E, Miron C, Neagu L, Callegari C, Di Fraia M, Rossi G, Galli DE, Pincelli T, Colombo A, Owada S, Tono K, Kameshima T, Joti Y, Katayama T, Togashi T, Yabashi M, Matsuda K, Nagaya K, Bostedt C, Ueda K. Characterizing crystalline defects in single nanoparticles from angular correlations of single-shot diffracted X-rays. IUCRJ 2020; 7:276-286. [PMID: 32148855 PMCID: PMC7055387 DOI: 10.1107/s205225252000144x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 02/03/2020] [Indexed: 06/10/2023]
Abstract
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. Recently, ultra-short and ultra-bright X-ray pulses provided by X-ray free-electron lasers (XFELs) opened up the possibility of structure determination of nanometre-scale matter with Å spatial resolution. However, it is often difficult to reconstruct the 3D structural information from single-shot X-ray diffraction patterns owing to the random orientation of the particles. This report proposes an analysis approach for characterizing defects in nanoparticles using wide-angle X-ray scattering (WAXS) data from free-flying single nanoparticles. The analysis method is based on the concept of correlated X-ray scattering, in which correlations of scattered X-ray are used to recover detailed structural information. WAXS experiments of xenon nanoparticles, or clusters, were conducted at an XFEL facility in Japan by using the SPring-8 Ångstrom compact free-electron laser (SACLA). Bragg spots in the recorded single-shot X-ray diffraction patterns showed clear angular correlations, which offered significant structural information on the nanoparticles. The experimental angular correlations were reproduced by numerical simulation in which kinematical theory of diffraction was combined with geometric calculations. We also explain the diffuse scattering intensity as being due to the stacking faults in the xenon clusters.
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Affiliation(s)
- Akinobu Niozu
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - Yoshiaki Kumagai
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA
| | - Toshiyuki Nishiyama
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - Hironobu Fukuzawa
- RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - Koji Motomura
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - Maximilian Bucher
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA
| | - Kazuki Asa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - Yuhiro Sato
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - Yuta Ito
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - Tsukasa Takanashi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - Daehyun You
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - Taishi Ono
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - Yiwen Li
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - Edwin Kukk
- Department of Physics and Astronomy, University of Turku, 20014 Turku, Finland
| | - Catalin Miron
- Université Paris-Saclay, CEA, CNRS, LIDYL, 91191, Gif-sur-Yvette, France
- Extreme Light Infrastructure – Nuclear Physics (ELI–NP), Horia Hulubei National Institute for Physics and Nuclear Engineering, 30 Reactorului Street, RO-077125 Magurele, Jud. Ilfov, Romania
| | - Liviu Neagu
- Extreme Light Infrastructure – Nuclear Physics (ELI–NP), Horia Hulubei National Institute for Physics and Nuclear Engineering, 30 Reactorului Street, RO-077125 Magurele, Jud. Ilfov, Romania
- National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor PO Box MG-36, 077125 Magurele, Jud. Ilfov, Romania
| | - Carlo Callegari
- Elettra – Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
| | - Michele Di Fraia
- Elettra – Sincrotrone Trieste S.C.p.A, 34149 Basovizza, Trieste, Italy
| | - Giorgio Rossi
- Department of Physics, Università degli Studi di Milano, Via G. Celoria 16, I-20133 Milano, Italy
| | - Davide E. Galli
- Department of Physics, Università degli Studi di Milano, Via G. Celoria 16, I-20133 Milano, Italy
| | - Tommaso Pincelli
- Department of Physics, Università degli Studi di Milano, Via G. Celoria 16, I-20133 Milano, Italy
- Fritz Haber Institute of the Max Planck Society, Faradayweg 4–6, 14195 Berlin, Germany
| | - Alessandro Colombo
- Department of Physics, ETH Zürich, Stefano-Franscini-Platz 5, 8049 Zürich, Switzerland
| | | | - Kensuke Tono
- Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo 679-5198, Japan
| | - Takashi Kameshima
- Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo 679-5198, Japan
| | - Yasumasa Joti
- Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo 679-5198, Japan
| | - Tetsuo Katayama
- Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo 679-5198, Japan
| | - Tadashi Togashi
- Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo 679-5198, Japan
| | | | | | - Kiyonobu Nagaya
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - Christoph Bostedt
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA
- Laboratory for Femtochemistry, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
- LUXS Laboratory for Ultrafast X-ray Sciences, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Kiyoshi Ueda
- RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
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8
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Zatsepin NA, Li C, Colasurd P, Nannenga BL. The complementarity of serial femtosecond crystallography and MicroED for structure determination from microcrystals. Curr Opin Struct Biol 2019; 58:286-293. [PMID: 31345629 DOI: 10.1016/j.sbi.2019.06.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 06/11/2019] [Accepted: 06/11/2019] [Indexed: 11/19/2022]
Abstract
In recent years, nano and microcrystals have emerged as a valuable source of high-resolution structural information owing to the invention of serial femtosecond crystallography (SFX) with X-ray free electron lasers and microcrystal electron diffraction (MicroED) using electron cryomicroscopes. Once considered useless for structure determination, nano/microcrystals now confer significant advantages for static and time-resolved structure determination from a wide variety of difficult-to-study targets. MicroED has been used to obtain sub-Ångstrom resolution maps in which hydrogen atoms can be clearly resolved from only a few nano/microcrystals, while SFX has been used to probe protein dynamics following reaction initiation on time scales from femtoseconds to minutes. We review these two complementary techniques and their abilities for high-resolution structure determination.
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Affiliation(s)
- Nadia A Zatsepin
- Department of Physics, Arizona State University, P.O. Box 871504, Tempe, AZ 85287, USA
| | - Chufeng Li
- Department of Physics, Arizona State University, P.O. Box 871504, Tempe, AZ 85287, USA
| | - Paige Colasurd
- Chemical Engineering, School for Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ 85287, USA
| | - Brent L Nannenga
- Chemical Engineering, School for Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ 85287, USA.
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9
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Real-time observation of X-ray-induced intramolecular and interatomic electronic decay in CH 2I 2. Nat Commun 2019; 10:2186. [PMID: 31097703 PMCID: PMC6522627 DOI: 10.1038/s41467-019-10060-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 04/16/2019] [Indexed: 11/08/2022] Open
Abstract
The increasing availability of X-ray free-electron lasers (XFELs) has catalyzed the development of single-object structural determination and of structural dynamics tracking in real-time. Disentangling the molecular-level reactions triggered by the interaction with an XFEL pulse is a fundamental step towards developing such applications. Here we report real-time observations of XFEL-induced electronic decay via short-lived transient electronic states in the diiodomethane molecule, using a femtosecond near-infrared probe laser. We determine the lifetimes of the transient states populated during the XFEL-induced Auger cascades and find that multiply charged iodine ions are issued from short-lived (∼20 fs) transient states, whereas the singly charged ones originate from significantly longer-lived states (∼100 fs). We identify the mechanisms behind these different time scales: contrary to the short-lived transient states which relax by molecular Auger decay, the long-lived ones decay by an interatomic Coulombic decay between two iodine atoms, during the molecular fragmentation. Understanding strong X-ray induced phenomena is important for applications of X-ray free-electron laser imaging. Here, the authors show time-resolved measurements of X-ray free-electron laser induced electronic decay of CH2I2 molecule probed with NIR pulses and identify mechanisms behind different transient states lifetimes.
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10
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Yabuuchi T, Kon A, Inubushi Y, Togahi T, Sueda K, Itoga T, Nakajima K, Habara H, Kodama R, Tomizawa H, Yabashi M. An experimental platform using high-power, high-intensity optical lasers with the hard X-ray free-electron laser at SACLA. JOURNAL OF SYNCHROTRON RADIATION 2019; 26:585-594. [PMID: 30855271 PMCID: PMC6412175 DOI: 10.1107/s1600577519000882] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 01/17/2019] [Indexed: 05/25/2023]
Abstract
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.
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Affiliation(s)
| | - Akira Kon
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotoron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
| | - Yuichi Inubushi
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotoron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
| | - Tadashi Togahi
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotoron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
| | - Keiichi Sueda
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
| | - Toshiro Itoga
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotoron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
| | - Kyo Nakajima
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
| | - Hideaki Habara
- Graduate School of Engineering, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Ryosuke Kodama
- Graduate School of Engineering, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Hiromitsu Tomizawa
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotoron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
| | - Makina Yabashi
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotoron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
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11
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Tono K, Hara T, Yabashi M, Tanaka H. Multiple-beamline operation of SACLA. JOURNAL OF SYNCHROTRON RADIATION 2019; 26:595-602. [PMID: 30855272 PMCID: PMC6412171 DOI: 10.1107/s1600577519001607] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 01/28/2019] [Indexed: 05/11/2023]
Abstract
The SPring-8 Ångstrom Compact free-electron LAser (SACLA) began parallel operation of three beamlines (BL1-3) in autumn 2017 to increase the user beam time of the X-ray free-electron laser. The success of the multiple-beamline operation is based on two technological achievements: (i) the fast switching operation of the SACLA main linear accelerator, which provides BL2 and BL3 with pulse-by-pulse electron beams, and (ii) the relocation and upgrade of the SPring-8 Compact SASE Source for BL1, for the generation of a soft X-ray free-electron laser. Moreover, the photon beamlines and experimental stations were upgraded to facilitate concurrent user experiments at the three beamlines and accommodate more advanced experiments.
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Affiliation(s)
- Kensuke Tono
- XFEL Utilization Division, Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
| | - Toru Hara
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
| | - Makina Yabashi
- XFEL Utilization Division, Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
| | - Hitoshi Tanaka
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
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12
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13
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X-ray free electron laser: opportunities for drug discovery. Essays Biochem 2017; 61:529-542. [PMID: 29118098 DOI: 10.1042/ebc20170031] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 10/02/2017] [Accepted: 10/03/2017] [Indexed: 01/16/2023]
Abstract
Past decades have shown the impact of structural information derived from complexes of drug candidates with their protein targets to facilitate the discovery of safe and effective medicines. Despite recent developments in single particle cryo-electron microscopy, X-ray crystallography has been the main method to derive structural information. The unique properties of X-ray free electron laser (XFEL) with unmet peak brilliance and beam focus allow X-ray diffraction data recording and successful structure determination from smaller and weaker diffracting crystals shortening timelines in crystal optimization. To further capitalize on the XFEL advantage, innovations in crystal sample delivery for the X-ray experiment, data collection and processing methods are required. This development was a key contributor to serial crystallography allowing structure determination at room temperature yielding physiologically more relevant structures. Adding the time resolution provided by the femtosecond X-ray pulse will enable monitoring and capturing of dynamic processes of ligand binding and associated conformational changes with great impact to the design of candidate drug compounds.
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