Journal of Synchrotron Radiation最新文献_第2页

Wavefront sensing at a high-repetition-rate X-ray free-electron laser. 高重复率x射线自由电子激光器的波前传感。

IF 3 3区物理与天体物理

Journal of Synchrotron Radiation Pub Date : 2026-09-01 Epub Date: 2026-07-15 DOI: 10.1107/S1600577526005898

Trey Guest, Patrik Vagovič, Luigi Adriano, Johan Bielecki, Sarlota Birnsteinova, Rita Graceffa, Jayanath Koliyadu, Kaye Morgan, Hiiro Moriyama, Daniel Mosko, Grant van Riessen, Kristian Sabol, Tokushi Sato, Peter Szeles, Zane Taylor, Jozef Uličný, Richard Bean, Adrian P Mancuso, Brian Abbey

{"title":"Wavefront sensing at a high-repetition-rate X-ray free-electron laser.","authors":"Trey Guest, Patrik Vagovič, Luigi Adriano, Johan Bielecki, Sarlota Birnsteinova, Rita Graceffa, Jayanath Koliyadu, Kaye Morgan, Hiiro Moriyama, Daniel Mosko, Grant van Riessen, Kristian Sabol, Tokushi Sato, Peter Szeles, Zane Taylor, Jozef Uličný, Richard Bean, Adrian P Mancuso, Brian Abbey","doi":"10.1107/S1600577526005898","DOIUrl":"10.1107/S1600577526005898","url":null,"abstract":"Wavefront characterization is essential for diagnosing, interpreting and mitigating performance limitations at X-ray free-electron lasers (XFELs). However, the dramatic increase in thermal load and data throughput at high repetition rates makes established wavefront characterization methods difficult to implement effectively. Here, we demonstrate that X-ray speckle arising from beamline optics can enable fast, robust and sensor-free wavefront metrology at next-generation XFEL facilities. Combining this approach with a statistical formulation of X-ray speckle tracking, we quantify local wavefront fluctuations within pulse trains at the European XFEL. We find that shot-to-shot wavefront fluctuations are predominantly planar phase tilts with distinct statistical signatures across intra- and inter-train timescales. The dominant source of wavefront error is periodic at frequencies consistent with known mechanical oscillation modes of the photon transport optics, while intra-train fluctuations correlate with instabilities in the electron bunch trajectory. Our results establish a practical framework for high-repetition-rate wavefront characterization and diagnostics at next-generation XFELs.","PeriodicalId":48729,"journal":{"name":"Journal of Synchrotron Radiation","volume":" ","pages":"1255-1268"},"PeriodicalIF":3.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13549355/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148450080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The diagnostics and laser infrastructure at the Soft X-ray Port of the European XFEL. 欧洲自由电子激光器软x射线端口的诊断和激光基础设施。

IF 3 3区物理与天体物理

Journal of Synchrotron Radiation Pub Date : 2026-09-01 Epub Date: 2026-07-17 DOI: 10.1107/S1600577526005886

Patrik Grychtol, Vahagn Vardanyan, Pranav Bhardwaj, Michael Heber, David Doblas-Jimenez, Ekaterina Tikhodeeva, Serguei Molodtsov, Manuel Izquierdo

{"title":"The diagnostics and laser infrastructure at the Soft X-ray Port of the European XFEL.","authors":"Patrik Grychtol, Vahagn Vardanyan, Pranav Bhardwaj, Michael Heber, David Doblas-Jimenez, Ekaterina Tikhodeeva, Serguei Molodtsov, Manuel Izquierdo","doi":"10.1107/S1600577526005886","DOIUrl":"10.1107/S1600577526005886","url":null,"abstract":"The diagnostics and laser infrastructure of the Soft X-ray Port (SXP) at the European X-ray Free Electron Laser are presented. Designed as a supplementary open port, SXP aims to enhance the research capabilities alongside the existing baseline instruments at the SASE3 soft X-ray undulator exploiting the high repetition rate operation enabled by superconducting acceleration cavities. These instruments already support studies in atomic, molecular and non-linear optics (SQS), as well as condensed matter physics (SCS). The inception of SXP is largely motivated by the community involved in time-resolved X-ray photoelectron spectroscopy (tr-XPES), focusing on material science dynamics at surfaces and interfaces. The dedicated endstation equipped with a time-of-flight momentum microscope allows for simultaneous recording of energy- and angle-resolved photoelectron distributions in a pump-probe setting, employing two synchronized femtosecond laser systems meant to cover a broad spectrum from the infrared to the extreme ultraviolet region. The alignment laser system, pump-probe laser transport, including the in-coupling optics, and the installed photon arrival-time monitor are described. Under the present operating conditions, however, the photon arrival-time monitor does not yet provide routine single-shot timing corrections, so the currently demonstrated temporal benchmark is obtained in situ at the tr-XPES endstation. Measurements on a patterned Au reference sample show that the laser spot sizes can be characterized directly and that sidebands yield an X-ray/optical cross-correlation of about 58 fs (FWHM). These measurements define the spatial and temporal instrument response currently achieved for pump-probe experiments at SXP.","PeriodicalId":48729,"journal":{"name":"Journal of Synchrotron Radiation","volume":" ","pages":"1531-1541"},"PeriodicalIF":3.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13549328/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148473651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synchrotron-based multi-scale biological imaging inside biocontainment environments. 生物防护环境中基于同步加速器的多尺度生物成像。

IF 3 3区物理与天体物理

Journal of Synchrotron Radiation Pub Date : 2026-09-01 Epub Date: 2026-08-26 DOI: 10.1107/S1600577526007083

Mateus Borba Cardoso, Renata Santos Rabelo, Carla Cristina Polo, Lucas Sanfelici, Renan Ramalho Geraldes, Gabriel Barros Zanoni Lopes Moreno, Henrique Pavani Pereira Ramos, Gean Rossi Dos Santos, Artur Clarindo Pinto, Sérgio Augusto Lordano Luiz, Harry Westfahl

{"title":"Synchrotron-based multi-scale biological imaging inside biocontainment environments.","authors":"Mateus Borba Cardoso, Renata Santos Rabelo, Carla Cristina Polo, Lucas Sanfelici, Renan Ramalho Geraldes, Gabriel Barros Zanoni Lopes Moreno, Henrique Pavani Pereira Ramos, Gean Rossi Dos Santos, Artur Clarindo Pinto, Sérgio Augusto Lordano Luiz, Harry Westfahl","doi":"10.1107/S1600577526007083","DOIUrl":"10.1107/S1600577526007083","url":null,"abstract":"The Orion project is designed to be a state-of-the-art research complex that studies dangerous pathogens, located at the Brazilian Center for Research in Energy and Materials (CNPEM), in Campinas, Brazil. Orion is set to host the first Latin America Biosafety Level 4 (BSL-4) laboratory, designed for maximum biological containment. This facility will be integrated with the Brazilian synchrotron light source, SIRIUS, and will also feature Biosafety Level 2 (BSL-2) and 3 (BSL-3) laboratories equipped for biological research, as well as an advanced electron microscopy facility. Orion's infrastructure is poised to significantly advance the understanding of pathogens and the diseases they cause while also contributing to public health surveillance and policy development. At the core of this effort are three synchrotron-based beamlines that will connect SIRIUS to Orion, enabling cutting-edge multi-scale biological imaging. These beamlines are strategically designed to provide different levels of field-of-view, penetration power and resolutions: (1) SIBIPIRUNA, dedicated to cryo-nanotomography using soft X-ray absorption contrast for cellular imaging; (2) TIMBÓ, mainly focused on cryo-nanotomography through coherent X-ray phase-contrast for tissue studies; and (3) HIBISCO, devoted to small living animal imaging using hard X-ray phase-contrast microtomography. This unique interplay between synchrotron-based imaging techniques within biocontainment areas will undoubtedly enhance pathogen research and bioimaging, driving scientific advancements with far-reaching implications for global health.","PeriodicalId":48729,"journal":{"name":"Journal of Synchrotron Radiation","volume":" ","pages":"1245-1254"},"PeriodicalIF":3.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13549351/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148833810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Focusing, collimation, and beam expansion of high-energy X-rays with diamond refractive lenses. 金刚石折射透镜对高能x射线的聚焦、准直和光束扩展。

IF 3 3区物理与天体物理

Journal of Synchrotron Radiation Pub Date : 2026-09-01 Epub Date: 2026-08-05 DOI: 10.1107/S1600577526006995

Sarvjit D Shastri, Sergey Antipov

{"title":"Focusing, collimation, and beam expansion of high-energy X-rays with diamond refractive lenses.","authors":"Sarvjit D Shastri, Sergey Antipov","doi":"10.1107/S1600577526006995","DOIUrl":"10.1107/S1600577526006995","url":null,"abstract":"Diamond is extremely well suited for synchrotron X-ray refractive optics. The effectiveness of diamond refractive lenses, fabricated by pulsed laser ablation, is demonstrated here for the focusing, collimation, and expansion of high-energy, undulator-source X-ray beams in the 40-70 keV photon energy range. The design of the lens elements and their mounting scheme allow the convenient feature of stacking both one-dimensionally and two-dimensionally focusing elements together in a self-aligning manner within the same holder for astigmatic manipulation, when needed. The CuCrZr alloy frames embedding the diamonds are suitable for thermal management, while possessing hardness. Collimating lenses, placed following a high-heat-load monochromator, are employed to increase the throughput of a subsequent narrow-angular-acceptance high-energy-resolution monochromator, after which the X-rays are focused to deliver a beam to coherent diffraction experiments on a long beamline. Also motivated and proposed is the concept of a convex beam-expander, which might seem counterintuitive given that it has higher attenuation on-axis. However, for high-energy X-rays from a low-emittance source on a long beamline, convex diamond beam-expanders could be practical. A proof-of-principle test result of this idea is presented.","PeriodicalId":48729,"journal":{"name":"Journal of Synchrotron Radiation","volume":" ","pages":"1326-1337"},"PeriodicalIF":3.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148674454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A high-energy X-ray beamline for materials science research at SPring-8: BL15XU. 一种用于材料科学研究的高能x射线束线。

IF 3 3区物理与天体物理

Journal of Synchrotron Radiation Pub Date : 2026-09-01 Epub Date: 2026-07-27 DOI: 10.1107/S1600577526006387

Hiroyuki Ohsumi, Yuji Higo, Yujiro Hayashi, Jaemyung Kim, Noriyoshi Tsujino, Sho Kakizawa, Tetsuo Irifune, Tomohiro Ohuchi, Yoshio Kono, Hirokatsu Yumoto, Takahisa Koyama, Hiroshi Yamazaki, Yasunori Senba, Haruhiko Ohashi, Hidekazu Takano, Michihiro Sugahara, Taito Osaka, Makina Yabashi

{"title":"A high-energy X-ray beamline for materials science research at SPring-8: BL15XU.","authors":"Hiroyuki Ohsumi, Yuji Higo, Yujiro Hayashi, Jaemyung Kim, Noriyoshi Tsujino, Sho Kakizawa, Tetsuo Irifune, Tomohiro Ohuchi, Yoshio Kono, Hirokatsu Yumoto, Takahisa Koyama, Hiroshi Yamazaki, Yasunori Senba, Haruhiko Ohashi, Hidekazu Takano, Michihiro Sugahara, Taito Osaka, Makina Yabashi","doi":"10.1107/S1600577526006387","DOIUrl":"10.1107/S1600577526006387","url":null,"abstract":"The high-energy X-ray beamline BL15XU is designed to drive advancements in materials science and high-pressure research by leveraging the photon source characteristics of SPring-8. The beamline provides an intense 100 keV pink beam, extracted from undulator radiation using a double-multilayer monochromator, and delivers a high flux of 6.0 × 1013 photons s-1 to the sample position. Experimental hutch 1 is dedicated to materials engineering, employing non-destructive methods based on scanning 3D X-ray diffraction and computed laminographic imaging. Experimental hutch 2 focuses on high-pressure science, and is equipped with a rotational slit system capable of switching between radiography and diffraction modes at speeds up to 144 Hz, with a minimum exposure time of approximately 2.7 ms. Installed high-pressure apparatuses include: the 1500 ton MADONNA multi-anvil press for generating pressures up to 120 GPa, the mobile 200 ton Hyaku-shiki press for in situ deformation experiments up to 20 GPa, and a dedicated Paris-Edinburgh press setup for pair distribution function analysis of liquids and amorphous materials over a wide momentum transfer range up to 27.8 Å-1. These diverse capabilities establish BL15XU as a versatile platform for in situ investigations of materials science and high-pressure research, well prepared for future high-brilliance operations at SPring-8-II.","PeriodicalId":48729,"journal":{"name":"Journal of Synchrotron Radiation","volume":" ","pages":"1554-1566"},"PeriodicalIF":3.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13549348/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148609083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A beam-direction cross-vessel metrology method and error analysis for the ptychography setup at HEPS ID09. HEPS ID09的波束方向跨血管测量方法及误差分析。

IF 3 3区物理与天体物理

Journal of Synchrotron Radiation Pub Date : 2026-09-01 Epub Date: 2026-07-16 DOI: 10.1107/S160057752600634X

Ruiying Liao, Zina Ou, Haihan Yu, Xuan Wang, Jie Dong, Aiyu Zhou, Wenkai Kang, Liang Zhou, Shanzhi Tang, Ming Li, Weifan Sheng

引用次数: 0

GoniOwl: convolutional neural network-based sample state detection for collision prevention on synchrotron beamlines. 基于卷积神经网络的同步加速器束线碰撞预防样本状态检测。

IF 3 3区物理与天体物理

Journal of Synchrotron Radiation Pub Date : 2026-09-01 Epub Date: 2026-08-07 DOI: 10.1107/S1600577526007277

Christian M Orr, James O'Hea, Armin Wagner

{"title":"GoniOwl: convolutional neural network-based sample state detection for collision prevention on synchrotron beamlines.","authors":"Christian M Orr, James O'Hea, Armin Wagner","doi":"10.1107/S1600577526007277","DOIUrl":"10.1107/S1600577526007277","url":null,"abstract":"Preventing collisions during automated sample exchange is critical for synchrotron beamlines, particularly for complex cryogenic in-vacuum endstations where recovery from hardware damage may take days. GoniOwl, a compact convolutional neural network (CNN) model, classifies sample-pin presence on the goniometer from a live camera feed on the long-wavelength macromolecular crystallography beamline I23 at Diamond Light Source. Trained on over 8700 manually verified images spanning two years of routine operation and augmented for robustness to illumination changes, camera shifts and occlusions, the model achieves >99% accuracy with millisecond-level inference. A confidence-gating mechanism routes uncertain predictions to a fail-safe path requiring operator confirmation, ensuring suitability for machine-protection control. Integrated via Experimental Physics and Industrial Control System (EPICS) process variables, GoniOwl runs in real time within the automated sample-change sequence. In shadow-mode deployment, the CNN matched or exceeded both the legacy histogram method and operator confirmations, which each achieved 96% accuracy. A closed-loop disagreement-audit workflow automatically collects divergent cases for targeted retraining and verification. The approach is readily transferable to other beamline environments where camera-based vision systems can provide an additional software machine protection layer.","PeriodicalId":48729,"journal":{"name":"Journal of Synchrotron Radiation","volume":" ","pages":"1356-1363"},"PeriodicalIF":3.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13549329/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148686363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The LIQUID endstation for in situ spectro-electrochemical studies on energy materials @ BACH beamline. 用于能源材料原位光谱电化学研究的LIQUID终端@ BACH光束线。

IF 3 3区物理与天体物理

Journal of Synchrotron Radiation Pub Date : 2026-09-01 Epub Date: 2026-07-15 DOI: 10.1107/S1600577526005825

I Napal Azcona, F Salvador, Z Liang, G Cherkashinin, M Sosič, D Benedetti, E Betz-Güttner, S Dal Zilio, A Fondacaro, F Bondino, I Píš, M Lazzarino, S Nappini, E Magnano

引用次数: 0

A simple and practical approach for protein serial crystallography using grease matrix and large-area support film. 一种简单实用的蛋白质系列晶体学方法，使用润滑脂基质和大面积支撑膜。

IF 3 3区物理与天体物理

Journal of Synchrotron Radiation Pub Date : 2026-09-01 Epub Date: 2026-07-15 DOI: 10.1107/S1600577526005643

Michihiro Sugahara, Saori Maki-Yonekura, Ichiro Inoue, Kiyofumi Takaba, Shun Narai, Hisashi Naitow, Jungmin Kang, Kensuke Tono, Keiji Numata, Tetsuya Ishikawa, Makina Yabashi, Koji Yonekura

{"title":"A simple and practical approach for protein serial crystallography using grease matrix and large-area support film.","authors":"Michihiro Sugahara, Saori Maki-Yonekura, Ichiro Inoue, Kiyofumi Takaba, Shun Narai, Hisashi Naitow, Jungmin Kang, Kensuke Tono, Keiji Numata, Tetsuya Ishikawa, Makina Yabashi, Koji Yonekura","doi":"10.1107/S1600577526005643","DOIUrl":"10.1107/S1600577526005643","url":null,"abstract":"Serial femtosecond crystallography (SFX) enables structural determination of biological macromolecules at room temperature using ultrashort X-ray pulses from an X-ray free-electron laser, thereby minimizing radiation damage and capturing dynamic structural changes. Efficient sample delivery is essential for collecting many diffraction patterns. The grease matrix injection method reduces sample consumption but may encounter nozzle clogging and unstable flow when the crystal size is large, the crystal density is high, or the viscosity of the crystallization buffer-grease mixture increases. Fixed-target approaches, in which crystals are dispersed on a support film, offer a stable alternative with lower sample consumption. Here, we present an optimized fixed-target system integrating a grease matrix and a large-area support film, enhancing sample stability, data collection efficiency, and structural resolution while enabling potential hydrogen atom detection in SFX experiments.","PeriodicalId":48729,"journal":{"name":"Journal of Synchrotron Radiation","volume":" ","pages":"1269-1280"},"PeriodicalIF":3.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13549349/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148450120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrafast time-resolved small-angle X-ray scattering setup on the FemtoMAX beamline. FemtoMAX光束线上的超快时间分辨小角度x射线散射装置。

IF 3 3区物理与天体物理

Journal of Synchrotron Radiation Pub Date : 2026-09-01 Epub Date: 2026-07-28 DOI: 10.1107/S1600577526006508

J C Ekström, P Mota-Santiago, F Engelmann, M Leorato, B Ahn, D Kroon, J Larsson, A E Terry, A Jurgilaitis

引用次数: 0