Article
Multidisciplinary Sciences
Hongchang Wang, Kawal Sawhney
Summary: Researchers have successfully generated omnidirectional differential phase images using X-ray differential phase contrast imaging, providing more information for studying complex samples and enabling simultaneous extraction of omnidirectional dark-field images to study ordered scattering structures.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Multidisciplinary Sciences
Hongchang Wang, Kawal Sawhney
Summary: This article introduces a method for generating omnidirectional differential phase images by scanning a randomly structured modulator, which provides more information than traditional imaging methods and allows the simultaneous extraction of omnidirectional dark-field images for studying strongly ordered scattering structures.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Chemistry, Multidisciplinary
Jumpei Yamada, Ichiro Inoue, Taito Osaka, Takato Inoue, Satoshi Matsuyama, Kazuto Yamauchi, Makina Yabashi
Summary: X-ray scientists are working to improve the quality of X-ray microscopy by proposing an innovative method for constructing an SXM equipped with a nanoprobe scanner, achieving single-nanometre accuracy in X-ray probe scanning. This method has been verified to be effective for achieving high resolution imaging with X-ray microscopy.
Article
Chemistry, Multidisciplinary
Peng Zhang, Yunqiu Hua, Yadong Xu, Qihao Sun, Xiang Li, Fucai Cui, Lin Liu, Yanxiao Bi, Guodong Zhang, Xutang Tao
Summary: In this study, the electrical properties and X-ray detection performances of CsPbBr3-nIn single crystals were improved by doping iodine atoms. The resistivity of CsPbBr3-nIn single crystals increased, decreasing the detection limit and restraining the leak current. The CsPbBr3-nIn single crystals showed stable dark currents, achieving record sensitivity and low detection limit for X-ray detection.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Analytical
Ombeline de La Rochefoucauld, Guillaume Dovillaire, Fabrice Harms, Mourad Idir, Lei Huang, Xavier Levecq, Martin Piponnier, Philippe Zeitoun
Summary: Imagine Optic has developed Extreme Ultra Violet (EUV) and X-ray Hartmann wavefront sensors for over 15 years, suitable for metrology and imaging applications and compatible with various X-ray sources. The paper introduces the principle of a Hartmann sensor, key parameters for designing a high-performance sensor, and different applications such as metrology, soft X-ray source optimization, and X-ray imaging.
Article
Cell Biology
Valerie Panneels, Ana Diaz, Cornelia Imsand, Manuel Guizar-Sicairos, Elisabeth Mueller, Anne Greet Bittermann, Takashi Ishikawa, Andreas Menzel, Andres Kaech, Mirko Holler, Christian Grimm, Gebhard Schertler
Summary: Ptychographic hard X-ray computed tomography (PXCT) is a recent method that allows imaging with quantitative electron-density contrast, providing isotropic 3D information of cellular and subcellular structures. The potential of PXCT for analyzing disease processes, such as neurodegeneration, at sub-200 nm resolution is illustrated through comparison with tomograms of degenerative retina. PXCT is non-destructive, suitable for correlative imaging, and powerful for tissue volumes analysis.
JOURNAL OF CELL SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Kaoruho Sakata, Masako Suzuki-Sakamaki, Kenta Amemiya
Summary: In this study, real-time observation of the evolving oxidation process of a Co thin film was achieved using fluorescence-yield wavelength-dispersive X-ray absorption spectroscopy, revealing the increase of oxide component from the surface to deeper regions as the reaction progresses. The oxidation progress in the depth direction was interpreted by the reaction with O-2 gas at the surface and the interlayer reaction by oxygen migration.
Article
Chemistry, Physical
Luis Kitsu Iglesias, Emma N. Antonio, Tristan D. Martinez, Liang Zhang, Zengqing Zhuo, Steven J. Weigand, Jinghua Guo, Michael F. Toney
Summary: This study elucidates the mechanism of sodium storage in hard carbon anodes and provides insights into the preferred pore sizes, extent of pore filling, and the influence of defect concentration. It is observed that sodium in larger pores exhibits increased pseudo-metallic sodium character, and higher pyrolysis temperatures enhance the capacity of sodium stored in the pores. Additionally, sodium intercalation between graphene layers occurs simultaneously with pore filling in the plateau region. The findings highlight strategies to design superior hard carbon anodes for sodium-ion batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Engineering, Multidisciplinary
Xiaoping Wang, Weiwei Dong, Peng Zhang, Haoqi Tang, Lanting Zhang, Tieying Yang, Peng Liu, Hong Wang, X. -d. Xiang
Summary: This work demonstrates high-throughput powder X-ray diffraction using a white X-ray beam and an energy-dispersive detector array. The results show consistent diffraction patterns with angle-resolved XRD, which is necessary for analyzing crystal structures of unknown samples.
Article
Chemistry, Multidisciplinary
Mingxi Chen, Lingjie Sun, Xiangyu Ou, Huanghao Yang, Xiaogang Liu, Huanli Dong, Wenping Hu, Xiangfeng Duan
Summary: Organic crystals show promising performance in low-dose X-ray imaging, with high resolution, sensitivity, and environmental stability.
ADVANCED MATERIALS
(2021)
Article
Astronomy & Astrophysics
Roman A. Krivonos, Antony J. Bird, Eugene M. Churazov, John A. Tomsick, Angela Bazzano, Volker Beckmann, Guillaume Belanger, Arash Bodaghee, Sylvain Chaty, Erik Kuulkers, Alexander Lutovinov, Angela Malizia, Nicola Masetti, Ilya A. Mereminskiy, Rashid Sunyaev, Sergey S. Tsygankov, Pietro Ubertini, Christoph Winkler
Summary: The INTEGRAL hard X-ray surveys have been crucial in mapping the Galactic plane and providing a sharper view of the hard X-ray sky. By expanding the surveys into shorter time scales, the search for transient X-ray emitters was made possible, contributing to advancements in hard X-ray astronomy.
NEW ASTRONOMY REVIEWS
(2021)
Article
Chemistry, Applied
Marco Aurelio Speranca, Juan Esteban Mayorquin-Guevara, Mara Cristina Pessoa da Cruz, Gustavo Henrique de Almeida Teixeira, Fabiola Manhas Verbi Pereira
Summary: Biofortification is crucial for enhancing nutrients in staple foods, with zinc monitoring being essential for bananas; injecting zinc sulfate into banana trees showed the potential for high throughput analysis of zinc content in biofortified bananas.
Article
Chemistry, Physical
Julien Gonthier, Tilman Rilling, Ernesto Scoppola, Fabian Zemke, Aleksander Gurlo, Peter Fratzl, Wolfgang Wagermaier
Summary: This study used in operando X-ray micro-computed tomography (mu CT) to monitor the progression of the liquid, gaseous, and solid phases of silica gels during ambient pressure drying and spring-back. The findings challenge the common assumption about the penetration of gas during the spring-back effect and show that the emergence of the spring-back effect is correlated to an equal volume fraction of solid, liquid, and gas in the gels.
CHEMISTRY OF MATERIALS
(2023)
Article
Optics
Vladimir Lipp, Ichiro Inoue, Beata Ziaja
Summary: We conducted a comparative theoretical study on silicon crystals irradiated with X-ray free-electron laser pulses of varying energies. Through simulations with our in-house hybrid code XTANT, we found that using higher photon energies would be advantageous for diffraction-before-destruction experiments, based on the comparison of coherently scattered signal strength and corresponding electronic radiation damage for three X-ray photon energies available at the SACLA free-electron laser facility.
Article
Astronomy & Astrophysics
Emanuele Greco, Marco Miceli, Salvatore Orlando, Barbara Olmi, Fabrizio Bocchino, Shigehiro Nagataki, Masaomi Ono, Akira Dohi, Giovanni Peres
Summary: Since the explosion of the supernova in 1987, SN87A has been closely monitored to study its evolution and detect its central compact relic. Analyzing archived observations from Chandra and NuSTAR, researchers have found features in the data that are compatible with emission from a proto-pulsar wind nebula. The detection of nonthermal emission supports the hypothesis that the emission may come from an absorbed PWN, making it the most likely scenario to explain the data.
ASTROPHYSICAL JOURNAL LETTERS
(2021)