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X-ray free electron laser (XFEL) can provide X-ray light with about four order of magnitude higher flux than synchrotron radiation. Pulse light from XFEL interacts with the target and the resulting photons are collected by detectors. The…

Instrumentation and Detectors · Physics 2021-10-13 Shuo Zhang , Jing-Kai Xia , Xu-Dong Ju

X-ray Free Electron Lasers (XFEL) are the most advanced pulsed x-ray sources. Their extraordinary pulse parameters promise unique applications. Indeed, several new methods have been developed at XFEL-s. However, no methods are known, which…

Materials Science · Physics 2023-10-30 G. Bortel , M. Tegze , M. Sikorski , R. Bean , J. Bielecki , C. Kim , J. Koliyadu , F. Koua , M. Ramilli , A. Round , T. Sato , D. Zabelskii , G. Faigel

X-ray single particle imaging (SPI) has offered the potential to visualize structures of biomolecules at near-atomic resolution. However, state-of-the-art structures at X-ray free electron lasers (XFELs) are limited to moderate resolution,…

Optics · Physics 2025-08-12 Abhishek Mall , Zhou Shen , Kartik Ayyer

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

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

Lensless X-ray imaging provides element-specific nanoscale insights into thick samples beyond the reach of conventional light and electron microscopy. Coherent diffraction imaging (CDI) methods, such as ptychographic tomography, can recover…

A method is proposed for obtaining three simultaneous projections of a target from a single radiation pulse, which also allows the relative orientation of successive targets to be determined. The method has application to femtosecond X-ray…

Soft Condensed Matter · Physics 2009-05-27 K. E. Schmidt , J. C. H. Spence , U. Weierstall , R. Kirian , X. Wang , D. Starodub , H. N. Chapman , M. R. Howells , R. B. Doak

X-ray dark-field imaging creates a representation of the sample where contrast is generated by subresolution features within the volume under inspection. These are detected by a local measurement of the radiation field's angular…

Three-dimensional (3D) imaging techniques appeal to a broad range of scientific and industrial applications. Typically, projection slice theorem enables multiple two-dimensional (2D) projections of an object to be combined in the Fourier…

Optics · Physics 2013-11-19 Leigh S. Martin , Chien-Chun Chen , Jianwei Miao

Ultrafast single-shot imaging techniques now reach frame rates of tens of tera-frame-per-second (Tfps) and long sequence depths but are often too complex for large-scale use, both in terms of image acquisition and reconstruction. We propose…

3D single-pixel imaging (SPI) is a promising imaging technique that can be ffexibly applied to various wavebands. The main challenge in 3D SPI is that the calibration usually requires a large number of standard points as references, which…

Image and Video Processing · Electrical Eng. & Systems 2024-10-11 Xinyue Ma , Chenxing Wang

X-ray imaging, traditionally relying on attenuation contrast, struggles to differentiate materials with similar attenuation coefficients like soft tissues. X-ray phase contrast imaging (XPCI) and dark-field (DF) imaging provide enhanced…

Medical Physics · Physics 2025-06-05 Jingcheng Yuan , Mini Das

Purpose: To introduce a combined machine learning (ML) and physics-based image reconstruction framework that enables navigator-free, highly accelerated multishot echo planar imaging (msEPI), and demonstrate its application in…

Single-pixel imaging (SPI) using a single-pixel detector is an unconventional imaging method, which has great application prospects in many fields to realize high-performance imaging. In especial, the recent proposed catadioptric panoramic…

Optics · Physics 2024-07-30 Huan Cui , Jie Cao , Haoyu Zhang , Chang Zhou , Haifeng Yao , Yingbo Wang , Qun Hao

Time-of-flight three dimensional imaging is an important tool for many applications, such as object recognition and remote sensing. Unlike conventional imaging approach using pixelated detector array, single-pixel imaging based on projected…

X-ray computed tomography is a powerful tool for volumetric imaging, where three-dimensional (3D) images are generated from a large number of individual X-ray projection images. Collecting the required number of low noise projection images…

Image and Video Processing · Electrical Eng. & Systems 2025-04-30 Zhenduo Shang , Thomas Blumensath

Single-pixel imaging is an indirect imaging technique which utilizes simplified optical hardware and advanced computational methods. It offers novel solutions for hyper-spectral imaging, polarimetric imaging, three-dimensional imaging,…

Image and Video Processing · Electrical Eng. & Systems 2018-01-12 Krzysztof M. Czajkowski , Anna Pastuszczak , Rafał Kotyński

X-ray free-electron lasers (XFELs) have been widely used for applications such as X-ray crystallography and magnetic spin probes because of their unprecedented performance. Recently, time-resolved X-ray magnetic circular dichroism (XMCD)…

Instrumentation and Detectors · Physics 2018-07-04 Bangjie Deng , Jiawei Yan , Qingmin Zhang , Yaodong Sang , Haixiao Deng

Recently three-dimensional (3D) imaging achieves tremendous success in consumer and industrial manufacturing. However, current 3D imaging methods rarely observe dynamical events happening in a short time interval due to the imaging speed…

Optics · Physics 2019-01-15 Jiajie Teng , Qiang Guo , Minghua Chen , Sigang Yang , Hongwei Chen

X-ray imaging is an invaluable tool for noninvasive analysis in many fields ranging from basic science to medicine and security. The development of low-dose large area imaging solutions still represents an important challenge for various…

Instrumentation and Detectors · Physics 2024-11-07 M. Simões , P. Vaz , A. F. V. Cortez