Results 1 to 10 of about 15,490 (252)

Analytic descriptions of parabolic X-ray mirrors [PDF]

Journal of Synchrotron Radiation, 2022
On X-ray beamlines and telescopes, glancing-incidence mirrors with parabolic profiles are used to collimate, focus, and collect light. Here, analytic descriptions for paraboloidal, plane-parabolic, and parabolic cylindrical mirrors in several congruent ...
Kenneth A. Goldberg
doaj   +6 more sources

Controlling cantilevered adaptive X-ray mirrors [PDF]

Journal of Synchrotron Radiation
Modeling the behavior of a prototype cantilevered X-ray adaptive mirror (held from one end) demonstrates its potential for use on high-performance X-ray beamlines.
Kenneth A. Goldberg, Kyle T. La Fleche
doaj   +6 more sources

Investigation of structural and reflective characteristics of short-period Mo/B4C multilayer X-ray mirrors [PDF]

Journal of Synchrotron Radiation
The results of a study of the structural and reflective characteristics of short-period multilayer X-ray mirrors based on Mo/B4C at wavelengths 1.54 Å, 9.89 Å and 17.59 Å are presented. The period of the samples varied in the range 8–35 Å.
Roman Shaposhnikov, Vladimir Polkovnikov, Sergey Garakhin, Yuliy Vainer, Nikolay Chkhalo, Ruslan Smertin, Kirill Durov, Egor Glushkov, Sergey Yakunin, Mikhail Borisov   +9 more
doaj   +2 more sources

Sub-nanometre quality X-ray mirrors created using ion beam figuring [PDF]

Journal of Synchrotron Radiation
Ion beam figuring (IBF) is a powerful technique for figure correction of X-ray mirrors to a high accuracy. Here, recent technical advancements in the IBF instrument developed at Diamond Light Source are presented and experimental results for figuring of ...
Arindam Majhi, Riley Shurvinton, Paresh Chandra Pradhan, Matthew Hand, Weichen Gu, Murilo Bazan Da Silva, Simone Moriconi, Ioana Nistea, Simon G. Alcock, Hongchang Wang, Kawal Sawhney   +10 more
doaj   +2 more sources

Nano-precision metrology of X-ray mirrors with laser speckle angular measurement [PDF]

Light: Science & Applications, 2021
A versatile high precision metrology instrument has been developed that surpass the limits of existing metrology techniques and opens up new possibilities to develop next-generation super-polished X-ray mirrors.
Hongchang Wang, Simone Moriconi, Kawal Sawhney   +2 more
doaj   +2 more sources

Study on the Fabrication Process of X-ray Focusing Mirrors

Micromachines, 2023
The eXTP (enhanced X-ray Timing and Polarization) satellite is a prominent X-ray astronomy satellite designed primarily for conducting deep space X-ray astronomical observations. The satellite’s scientific payload consists of X-ray focusing mirrors.
Qiuyan Liao, Fei Ding, Zhigao Chen, Duo Li, Bo Wang   +4 more
doaj   +3 more sources

Silicon nitride transmission X-ray mirrors. [PDF]

J Synchrotron Radiat, 2008
Transmission X-ray mirrors have been fabricated from 300-400 nm-thick low-stress silicon nitride windows of size 0.6 mm x 85 mm. The windows act as a high-pass energy filter at grazing incidence in an X-ray beam for the beam transmitted through the window.
Cornaby S, Bilderback DH.
europepmc   +4 more sources

Ion beam figuring for X-ray mirrors: history, state-of-the-art and future prospects [PDF]

Journal of Synchrotron Radiation
Synchrotron light sources require X-ray optics with extremely demanding accuracy for the surface profile, with less than 100 nrad slope errors and sub-nanometre height errors.
Riley Shurvinton, Hongchang Wang, Paresh Pradhan, Ioana-Theodora Nistea, Simon Alcock, Murilo Bazan Da Silva, Arindam Majhi, Kawal Sawhney   +7 more
doaj   +2 more sources

Framework for X-ray mirror surface shape fitting [PDF]

Journal of Synchrotron Radiation
For accurate characterization of grazing-incidence X-ray mirrors, we present a comprehensive framework to fit measured surface shapes (either slope or height) of X-ray mirrors used in synchrotron radiation and free-electron laser facilities. We summarize
Lei Huang, Ruochen Xu, Tianyi Wang, Jumpei Yamada, Joseph Dvorak, Corey Austin, Albert Van Eeckhout, Josep Nicolàs Roman, Kenneth Goldberg, Mourad Idir   +9 more
doaj   +2 more sources

Short-period multilayer X-ray mirrors

Journal of Synchrotron Radiation, 2003
Multilayer structures with short periods have been systematically investigated using a tunable soft X-ray synchrotron, BESSY II, and X-ray tube radiation. Multilayer X-ray mirrors of W/B(4)C, W/Sc, Mo/B(4)C, Mo/C, La/B(4)C, Cr/C and Cr/Sc, with periods from 0.8 nm to 3.5 nm and number of periods up to 300-400, were constructed and investigated.
M V Zorina, E B Kluenkov, Schäfers F
exaly   +3 more sources