Results 51 to 60 of about 2,162,368 (373)

Wide-field X-ray optics [PDF]

International Astronomical Union Colloquium, 1995
AbstractClassical X-ray mirror optics usually has a limited Field of View (FoV) of ∼ 1°. Wide-field imaging can be achieved by lobster-eye type reflecting X-ray optics. We summarise several different approaches and suggest an innovative technology for the production of X-ray reflecting flats and cells necessary to develop one- or two-dimensional wide ...
René Hudec, Adolf Inneman, Ladislav Pina, Petr Řehák, Paul Gorenstein   +4 more
openaire   +1 more source

Diffraction Losses in a Stack of Diamond X-Ray Lenses

Photonics
Compound refractive lenses, crafted from single-crystal materials like diamond and silicon, are increasingly favored, particularly in cutting-edge facilities, such as free electron lasers and fourth-generation synchrotrons.
Nataliya Klimova, Anatoly Snigirev
doaj   +1 more source

Ultrashort X-ray Free Electron Laser Pulse Manipulation by Optical Matrix

Photonics, 2023
Free electron laser (FEL) is capable of producing ultra-short X-ray pulses. The estimation of X-ray pulse propagation is the key process of X-ray FEL beamline design.
Kai Hu, Ye Zhu, Zhongmin Xu, Qiuping Wang, Weiqing Zhang, Chuan Yang   +5 more
doaj   +1 more source

X-ray propagation through hollow channel: PolyCAD - a ray tracing code (1)

, 2005
A new CAD program, PolyCAD, designed for X-ray photon tracing in polycapillary optics is described. To understand the PolyCAD code and its results, the theoretical basis of X-ray transmission by a single cylindrical channel (monocapillary) is discussed ...
Cappuccio, Cappuccio, Cappuccio, Chen, Chen, Dabagov, Dabagov, Dabagov, Dariush Hampai, Furuta, Giannantonio Cibin, Giorgio Cappuccio, Hampai, Hoffman, Kumakhov, Kumakhov, Liu, Liu, Sultan B. Dabagov, Thiel, Vincze, Vincze, Xiao, Xiao   +23 more
core   +1 more source

Laue gamma-ray lenses for space astrophysics:status and prospects [PDF]

, 2010
We review feasibility studies, technological developments and astrophysical prospects for Laue lenses devoted to hard X-/gamma-ray astronomy observations.Comment: 26 pages, 24 figures. Published in a special issue (Volume 2010 (2010), Article ID 215375,
Frontera, Filippo, Von Ballmoos, Peter
core   +2 more sources

Challenging X-ray Fluorescence Applications for Environmental Studies at XLab Frascati

Condensed Matter, 2018
In this work, we will report applications of the total external X-ray fluorescence (TXRF) station, a prototype assembled at the XLab Frascati laboratory (XlabF) at the INFN National Laboratories of Frascati (INFN LNF).
Giorgio Cappuccio, Giannantonio Cibin, Sultan B. Dabagov, Alfredo Di Filippo, Gianluca Piovesan, Dariush Hampai, Valter Maggi, Augusto Marcelli   +7 more
doaj   +1 more source

Apochromatic X-ray focusing

Light: Science & Applications, 2023
Achromatic doublets are combinations of two individual lenses designed to focus different wavelengths of light in the same position. Apochromatic optics are improved versions of the achromatic schemes which extend the wavelength range significantly. Both
Umut T. Sanli, Griffin Rodgers, Marie-Christine Zdora, Peng Qi, Jan Garrevoet, Ken Vidar Falch, Bert Müller, Christian David, Joan Vila-Comamala   +8 more
doaj   +1 more source

Design and advancement status of the Beam Expander Testing X-ray facility (BEaTriX)

, 2016
The BEaTriX (Beam Expander Testing X-ray facility) project is an X-ray apparatus under construction at INAF/OAB to generate a broad (200 x 60 mm2), uniform and low-divergent X-ray beam within a small lab (6 x 15 m2).
Arcangeli, L., Bianucci, G., Ferrari, C., Ghigo, M., Pareschi, G., Pelliciari, C., Rossi, M., Salmaso, B., Spiga, D., Tagliaferri, G., Valsecchi, G., Vecchi, G., Zappettini, A.   +12 more
core   +1 more source

Macroporous silicon membranes as electron and x-ray transmissive windows [PDF]

, 2004
Macroporous silicon membranes are fabricated whose pores are terminated with 60 nm thin silicon dioxide shells. The transmission of electrons with energies of 5 kV-25 kV through these membranes was investigated reaching a maximum of 22% for 25 kV ...
Gösele, U., Kolbe, M., Scherer, A., Schilling, J.   +3 more
core   +1 more source

Phase Space Considerations for a microSAXS Beamline Located on a Diamond Laue Side-Bounce Monochromator

Instruments, 2020
Flux as well as spatial and angular resolution for a microbeam small-angle X-ray scattering set-up, comprising Laue optics and multiple focusing elements are modeled within five-dimensional phase space analysis.
Detlef-M. Smilgies
doaj   +1 more source