Results 51 to 60 of about 578,265 (196)

Evolution of dislocations during the rapid solidification in additive manufacturing

Nature Communications
Materials processed by fusion-based additive manufacturing (AM) typically exhibit relatively high dislocation densities, along with cellular structures and elemental segregation.
Lin Gao, Yan Chen, Xuan Zhang, Sean R. Agnew, Andrew C. Chuang, Tao Sun   +5 more
doaj   +1 more source

Development of a multi-functional chamber for resonant X-ray scattering experiments in the tender X-ray regime at the PAL-XFEL

Journal of Synchrotron Radiation
The hard X-ray undulator line at Pohang Accelerator Laboratory X-ray Free Electron Laser (PAL-XFEL) provides a wide range of photon energies encompassing both the tender (2–5 keV) and hard (5–15 keV) X-ray regimes.
Soon Hee Park, Seonghan Kim, Jaeku Park, Seokhwan Yun, Jaehong Jeong, Je-Geun Park, Kyung Sook Kim, Tae-Kyu Choi, Intae Eom, Dogeun Jang, Minseok Kim, Jae Hyuk Lee, Sang-Youn Park, Hyunjung Kim, Sae Hwan Chun   +14 more
doaj   +1 more source

Calculation of x-ray scattering patterns from nanocrystals at high x-ray intensity

Structural Dynamics, 2016
We present a generalized method to describe the x-ray scattering intensity of the Bragg spots in a diffraction pattern from nanocrystals exposed to intense x-ray pulses. Our method involves the subdivision of a crystal into smaller units.
Malik Muhammad Abdullah, Zoltan Jurek, Sang-Kil Son, Robin Santra   +3 more
doaj   +1 more source

Ionic scattering factors of atoms that compose biological molecules

IUCrJ, 2018
Ionic scattering factors of atoms that compose biological molecules have been computed by the multi-configuration Dirac–Fock method. These ions are chemically unstable and their scattering factors had not been reported except for O−.
Koji Yonekura, Rei Matsuoka, Yoshiki Yamashita, Tsutomu Yamane, Mitsunori Ikeguchi, Akinori Kidera, Saori Maki-Yonekura   +6 more
doaj   +1 more source

Ovine Bone Morphology and Deformation Analysis Using Synchrotron X-ray Imaging and Scattering

Quantum Beam Science, 2020
Bone is a natural hierarchical composite tissue incorporating hard mineral nano-crystals of hydroxyapatite (HAp) and organic binding material containing elastic collagen fibers. In the study, we investigated the structure and deformation of ovine bone by
Eugene S. Statnik, Alexey I. Salimon, Cyril Besnard, Jingwei Chen, Zifan Wang, Thomas Moxham, Igor P. Dolbnya, Alexander M. Korsunsky   +7 more
doaj   +1 more source

Stabilizing lattice oxygen redox in layered sodium transition metal oxide through spin singlet state

Nature Communications, 2023
Reversible lattice oxygen redox reactions offer the potential to enhance energy density and lower battery cathode costs. However, their widespread adoption faces obstacles like substantial voltage hysteresis and poor stability.
Xuelong Wang, Liang Yin, Arthur Ronne, Yiman Zhang, Zilin Hu, Sha Tan, Qinchao Wang, Bohang Song, Mengya Li, Xiaohui Rong, Saul Lapidus, Shize Yang, Enyuan Hu, Jue Liu   +13 more
doaj   +1 more source

Electronic superlattice revealed by resonant scattering from random impurities in Sr3Ru2O7 [PDF]

, 2013
Resonant elastic x-ray scattering (REXS) is an exquisite element-sensitive tool for the study of subtle charge, orbital, and spin superlattice orders driven by the valence electrons, which therefore escape detection in conventional x-ray diffraction (XRD)
Bohnenbuck, B., Chuang, Y. -D., Damascelli, A., Denlinger, J. D., Geck, J., Gonzalez, A. G. Cruz, Hawthorn, D. G., Hossain, M. A., Hussain, Z., Keimer, B., Mathieu, R., Satow, S., Sawatzky, G. A., Schussler-Langeheine, C., Takagi, H., Tokura, Y., Wu, H. -H., Yoshida, Y., Zegkinoglou, I.   +18 more
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On the Relevance of Compton Scattering for the Soft X-ray Spectra of Hot DA White Dwarfs [PDF]

, 2006
We re-examine the effects of Compton scattering on the emergent spectra of hot DA white dwarfs in the soft X-ray range. Earlier studies have implied that sensitive X-ray observations at wavelengths $\lambda < 50$ \AA might be capable of probing the flux ...
Drake, J. J., Madej, J., Rauch, T., Suleimanov, V., Werner, K.   +4 more
core   +3 more sources

Varying Collimation for Dark-Field Extraction

International Journal of Biomedical Imaging, 2009
Although x-ray imaging is widely used in biomedical applications, biological soft tissues have small density changes, leading to low contrast resolution for attenuation-based x-ray imaging. Over the past years, x-ray small-angle scattering was studied as
Ge Wang, Wenxiang Cong, Haiou Shen, Yu Zou   +3 more
doaj   +1 more source

X-ray scattering by many-particle systems

New Journal of Physics, 2013
This paper reviews the treatment of high-frequency Thomson scattering in the non-relativistic and near-relativistic regimes with the primary purpose of understanding the nature of the frequency redistribution correction to the differential cross-section.
B J B Crowley, G Gregori
doaj   +1 more source