Results 41 to 50 of about 1,914,697 (336)

Apochromatic X-ray focusing

open access: yesLight: 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   +8 more
doaj   +1 more source

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

open access: yesPhotonics, 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   +5 more
doaj   +1 more source

Simulation of a Simple Wolter Telescope of Type I by Geant4 for Some Widely Used Materials [PDF]

open access: yesIranian Journal of Astronomy and Astrophysics, 2020
At the present work, the reflection of X-rays from surfaces composed of silicon, gold, iridium, and nickel is simulated in the range of E ≤ 5 keV energy for the two cases, which includes raw mirror surfaces and a typical Wolter-I optics-based X-ray ...
Mehdi Abbasian Motlagh   +1 more
doaj   +1 more source

Optical, x-ray and microwave diagnostics

open access: yesAIP Conference Proceedings, 2013
Laser-driven ion acceleration is a new approach for the particles acceleration, which allows obtaining ion beams with unique properties, such as short burst duration, large particle number, small size source size, low transverse emittance. Currently, two main acceleration mechanisms have been identified and investigated: target normal sheath ...
Tudisco S   +9 more
openaire   +5 more sources

In-flight PSF calibration of the NuSTAR hard X-ray optics [PDF]

open access: yesAstronomical Telescopes and Instrumentation, 2014
We present results of the point spread function (PSF) calibration of the hard X-ray optics of the Nuclear Spectroscopic Telescope Array (NuSTAR). Immediately post-launch, NuSTAR has observed bright point sources such as Cyg X-1, Vela X-1, and Her X-1 for
H. An   +9 more
semanticscholar   +1 more source

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

open access: yesCondensed 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   +7 more
doaj   +1 more source

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

open access: yesInstruments, 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

Brucella NyxA and NyxB dimerization enhances effector function during infection

open access: yesFEBS Letters, EarlyView.
Brucella abortus thrives inside cells thanks to the translocation of effector proteins that fine‐tune cellular functions. NyxA and NyxB are two effectors that destabilize the nucleolar localization of their host target, SENP3. We show that the Nyx proteins directly interact with each other and that their dimerization is essential for their function ...
Lison Cancade‐Veyre   +4 more
wiley   +1 more source

Multidimensional OMICs reveal ARID1A orchestrated control of DNA damage, splicing, and cell cycle in normal‐like and malignant urothelial cells

open access: yesMolecular Oncology, EarlyView.
Loss of the frequently mutated chromatin remodeler ARID1A, a subunit of the SWI/SNF cBAF complex, results in less open chromatin, alternative splicing, and the failure to stop cells from progressing through the cell cycle after DNA damage in bladder (cancer) cells. Created in BioRender. Epigenetic regulators, such as the SWI/SNF complex, with important
Rebecca M. Schlösser   +11 more
wiley   +1 more source

Manipulation of the magnetic monopole injection for topological transition

open access: yesNPG Asia Materials
Manipulating the topological properties of spin textures in magnetic materials is of great interest due to the rich physics and promising technological applications of these materials in advanced electronic devices.
Hee-Sung Han   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy