Zobrazeno 1 - 10
of 226
pro vyhledávání: '"A. T. Macrander"'
Publikováno v:
The Review of scientific instruments. 93(11)
Optimum performance in x-ray imaging and spectroscopy of plasmas with bent crystals is achievable only when the crystal reflects the x rays theoretically perfectly across its entire surface. However, typical thin quartz (101̄1) crystal samples kept
Autor:
Albert T. Macrander
Publikováno v:
J Appl Crystallogr
Dynamical X-ray diffraction simulations from crystals with surface undulations are reported. The Takagi–Taupin equations are applied and used to derive results in good agreement with experimental data reported in a separate paper [Macrander, Pereir
Publikováno v:
Journal of Applied Crystallography. 52:115-121
A large α-quartz crystal designed to condition the monochromatic beam at beamline 1-BM of the Advanced Photon Source is presented. The purpose of this crystal was to provide a precise match to the Bragg angle of quartz crystals that are commonly use
Autor:
Ray Conley, Juan Zhou, Xiaojing Huang, Nathalie Bouet, Yong S. Chu, Hanfei Yan, Albert T. Macrander, Evgeny Nazaretski, Jörg Maser
Publikováno v:
Journal of Nanoscience and Nanotechnology. 19:575-584
Diffraction optics fabricated from multilayers offer an intriguing alternative to lithography-based zone plates due to their advantages of virtually limitless aspect ratio and extremely small feature size. However, other issues, intrinsic to thin-fil
Publikováno v:
Physical Review Materials. 4
Anomalous diffraction of Bijvoet pairs (BPs) is a fundamental method of structure analyses in crystallography. We demonstrate that the diffraction intensity ratio of a BP always intrinsically equals the two structure factors' squared modulus ratio in
Autor:
Michael Wojcik, Lahsen Assoufid, Jun Qian, Xianrong Huang, Elina Kasman, Albert T. Macrander, N R Pereira
Publikováno v:
J Appl Crystallogr
The results are reported of an X-ray diffraction study of an Si crystal designed and fabricated for very asymmetric diffraction from the 333 reflection for X-ray energies of 8.100 and 8.200 keV. A crystal with an asymmetry angle of 46 ± 0.1° betwee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d770a5f3ff7594969f7948fdc9f80576
https://europepmc.org/articles/PMC7312149/
https://europepmc.org/articles/PMC7312149/
Publikováno v:
Review of Scientific Instruments. 92:063506
Rocking curve topography at the Advanced Photon Source’s beamline 1-BM measures the x-ray reflection from large (many cm2) flat crystals on a sub-mm scale with microradian angular resolution. The (0111) reflection at 8 keV is uniform across the cry
Autor:
Albert T. Macrander, XiangRong Huang
Publikováno v:
Annual Review of Materials Research. 47:135-152
Most X-ray optics for use at synchrotron beamlines are structured to achieve a desired performance level. The fabrication steps needed to achieve a certain structure usually limit the final performance, such as for energy resolution and focus size. T
Autor:
Steven P. Kearney, L. Assoufid, R. Conley, A. Zhou, G. Chang, Jayson Anton, Deming Shu, H. Zheng, A. T. Macrander, H. Shi
Publikováno v:
AIP Conference Proceedings.
Both the Advanced Photon Source (APS) at Argonne National Laboratory (ANL) and the Beijing Synchrotron Radiation Facility (BSRF) at Institute of High Energy Physics (IHEP) have a keen interest in the development of a compact Multilayer Laue Lens (MLL
Autor:
Albert T. Macrander, Reno Waswil, Carlo U. Segre, Ali M. Khounsary, R. Conley, Thomas C. Irving
Publikováno v:
Advances in X-Ray/EUV Optics and Components XIII.
This paper reports on a planned upgrade to the capabilities of the Illinois Institute of Technology’s BioCAT undulator beamline in an effort to increase the photon flux 10 to 100-fold. This is accomplished by the addition of a double multilayer mon