Results 121 to 130 of about 2,162,368 (373)

Development of the Nanobeam X-ray Experiments instrument at PAL-XFEL

open access: yesJournal of Synchrotron Radiation
A Nanobeam X-ray Experiments (NXE) instrument was developed and installed at the hard X-ray beamline of the Pohang Accelerator Laboratory X-ray Free Electron Laser.
Jangwoo Kim   +15 more
doaj   +1 more source

High-resolution accelerator alignment using x-ray optics

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2006
We propose a novel alignment technique utilizing the x-ray beam of an undulator in conjunction with pinholes and position-sensitive detectors for positioning components of the accelerator, undulator, and beam line in an x-ray free-electron laser.
Bingxin Yang, Horst Friedsam
doaj   +1 more source

At-wavelength Metrology of X-ray Optics at Diamond Light Source

open access: yesOptics & Photonics - Optical Engineering + Applications, 2013
Modern third-generation synchrotron radiation sources provide coherent and extremely bright X-ray beams, but the performance of the optics employed on the beamlines is critical for the X-rays' successful exploitation. The quality of the beam delivered to
K. Sawhney   +4 more
semanticscholar   +1 more source

Organic Electrochemical Transistor Channel Materials: Copolymerization Versus Physical Mixing of Glycolated and Alkoxylated Polymers

open access: yesAdvanced Functional Materials, EarlyView.
This work discusses the use of blended channel materials in OECTs. It explores how mixing glycolated and alkoxylated polymers in various ratios offers a simpler and more efficient route to tuning OECT properties. The performance of the polymer blends is compared to the corresponding copolymers, demonstrating similar OECT characteristics, swelling ...
Lize Bynens   +14 more
wiley   +1 more source

Perfect X-ray focusing via fitting corrective glasses to aberrated optics

open access: yesNature Communications, 2017
X-ray optics are notoriously challenging to fabricate due to the strict tolerances that result from the short wavelength of radiation. Here, Seibothet al.
Frank Seiboth   +20 more
doaj   +1 more source

X-Ray Optics for the 2020s [PDF]

open access: yes, 2011
Three factors characterize an X-ray optics technology: angular resolution, effective area per unit mass, and production cost per unit effective area. In general, these three factors are always in conflict with one another.
Zhang, William
core   +1 more source

A Soft X-ray Polarimeter Designed for Broad-band X-ray Telescopes

open access: yes, 2007
A novel approach for measuring linear X-ray polarization over a broad-band using conventional imaging optics and cameras is described. A new type of high efficiency grating, called the critical angle transmission grating is used to disperse soft X-rays ...
Marshall, Herman L.
core   +1 more source

The selection criteria elements of X-ray optics system [PDF]

open access: diamond, 2018
Inna Plotnikova   +4 more
openalex   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

open access: yesAdvanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal   +10 more
wiley   +1 more source

Three-dimensional electronic spectroscopy of excitons in asymmetric double quantum wells

open access: yesNew Journal of Physics, 2013
We utilize a three-dimensional (3D) visible spectroscopy to reveal and explore coherent coupling between excitons localized to GaAs quantum wells separated by barriers 4 and 6 nm wide. The coupled excitons were energetically separated by 43 meV, close to
C R Hall   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy