Zobrazeno 1 - 10
of 1 972
pro vyhledávání: '"diffraction imaging"'
Autor:
Huaiyu Chen, Dmitry Dzhigaev, Alexander Björling, Fabian Westermeier, Mikhail Lyubomirskiy, Michael Stuckelberger, Jesper Wallentin
Publikováno v:
Journal of Synchrotron Radiation, Vol 31, Iss 5, Pp 1308-1316 (2024)
Bragg coherent X-ray diffraction imaging (BCDI) has emerged as a powerful technique for strain imaging and morphology reconstruction of nanometre-scale crystals. However, BCDI often suffers from angular distortions that appear during data acquisition
Externí odkaz:
https://doaj.org/article/217274f5d241425f84691884c9e18438
Autor:
Kang-Ching Chu, Chia-Hui Yeh, Jhih-Min Lin, Chun-Yu Chen, Chi-Yuan Cheng, Yi-Qi Yeh, Yu-Shan Huang, Yi-Wei Tsai
Publikováno v:
Journal of Synchrotron Radiation, Vol 31, Iss 5, Pp 1340-1345 (2024)
The inherent ambiguity in reconstructed images from coherent diffraction imaging (CDI) poses an intrinsic challenge, as images derived from the same dataset under varying initial conditions often display inconsistencies. This study introduces a metho
Externí odkaz:
https://doaj.org/article/1e4afb72d8e24590bdbdeb816c6dd9cf
Autor:
Junha Hwang, Sejin Kim, Sung Yun Lee, Eunyoung Park, Jaeyong Shin, Jae Hyuk Lee, Myong-jin Kim, Seonghan Kim, Sang-Youn Park, Dogeun Jang, Intae Eom, Sangsoo Kim, Changyong Song, Kyung Sook Kim, Daewoong Nam
Publikováno v:
Journal of Synchrotron Radiation, Vol 31, Iss 3, Pp 469-477 (2024)
Various X-ray techniques are employed to investigate specimens in diverse fields. Generally, scattering and absorption/emission processes occur due to the interaction of X-rays with matter. The output signals from these processes contain structural i
Externí odkaz:
https://doaj.org/article/7b4b3c4160a1463b92a8c7f4ffc5f745
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 2, Pp 1-5 (2024)
By inserting a modulator in the imaging system and scanning in different positions, ptychographic modulation imaging can achieve higher quality reconstruction for smooth or weakly scattered objects compared to conventional ptychography imaging. Howev
Externí odkaz:
https://doaj.org/article/83a8c2682f894c11a4513a0a0b0133f9
Autor:
Yuki Takayama, Masayoshi Nakasako
Publikováno v:
Journal of Synchrotron Radiation, Vol 31, Iss 1, Pp 95-112 (2024)
X-ray diffraction imaging (XDI) is utilized for visualizing the structures of non-crystalline particles in material sciences and biology. In the structural analysis, phase-retrieval (PR) algorithms are applied to the diffraction amplitude data alone
Externí odkaz:
https://doaj.org/article/285bc211d34a4fe68db67a93c26dce0a
Publikováno v:
Journal of Synchrotron Radiation, Vol 31, Iss 1, Pp 113-128 (2024)
In X-ray diffraction imaging (XDI), electron density maps of a targeted particle are reconstructed computationally from the diffraction pattern alone using phase-retrieval (PR) algorithms. However, the PR calculations sometimes fail to yield realisti
Externí odkaz:
https://doaj.org/article/a0f6c091017f4c5786483aad67d906f9
Autor:
Yukio Takahashi, Masaki Abe, Hideshi Uematsu, Shuntaro Takazawa, Yuhei Sasaki, Nozomu Ishiguro, Kyosuke Ozaki, Yoshiaki Honjo, Haruki Nishino, Kazuo Kobayashi, Toshiyuki Nishiyama Hiraki, Yasumasa Joti, Takaki Hatsui
Publikováno v:
Journal of Synchrotron Radiation, Vol 30, Iss 5, Pp 989-994 (2023)
Ptychographic coherent diffraction imaging (PCDI) is a synchrotron X-ray microscopy technique that provides high spatial resolution and a wide field of view. To improve the performance of PCDI, the performance of the synchrotron radiation source and
Externí odkaz:
https://doaj.org/article/aa6db4eec9dc4067a952ea1685636fc6
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Autor:
IAEA
This Safety Guide provides recommendations on specific safety measures to meet the requirements of IAEA Safety Standards Series No. GSR Part 3 and other relevant Safety Requirements publications on the use of X ray generators and other types of radia