New Developments and Applications of X-Ray Capillary Optics

2009 ◽  
Vol 26 (3) ◽  
pp. 97-106 ◽  
Author(s):  
Aniouar Bjeoumikhov ◽  
Semfira Bjeoumikhova ◽  
Reiner Wedell
2002 ◽  
Author(s):  
Richard E. Ross ◽  
Carla D. Bradford ◽  
Walter W. Peppler
Keyword(s):  
X Ray ◽  

Author(s):  
P. Engström ◽  
S. Larsson ◽  
A. Rindby ◽  
A. Buttkewitz ◽  
S. Garbe ◽  
...  
Keyword(s):  
X Ray ◽  

2012 ◽  
Vol 1386 ◽  
Author(s):  
Alcides L. Leao ◽  
Bibin M. Cherian ◽  
Sivoney F. Souza ◽  
Mohini Sain ◽  
Suresh Narine

ABSTRACTCellulose nanofibrils have been evaluated as reinforcement material in polymeric matrixes due to their potential to improve the mechanical, optical, and dielectric properties of these matrixes as well as its environmental positive footprint. This work describes how banana nanocellulose can be used to replace others not so friendly materials in many applications including, biomaterials, automotive industries and packaging by proved with their mechanical properties. The process used is very mild to the environment and consists of a high pressure fibrillation followed by a chemical purification which affects the fiber morphology. Many fibers characterization processes were used including microscopy techniques and X-ray diffraction to study the structure and properties of the prepared nanofibers and composites. Microscopy studies showed that the used individualization processes lead to a unique morphology of interconnected web-like structure of the fibers.


2021 ◽  
Vol 54 (5) ◽  
pp. 1530-1534
Author(s):  
Sergey Stepanov

X-ray Server (https://x-server.gmca.aps.anl.gov) is a collection of programs for online modelling of X-ray diffraction and scattering. The dynamical diffraction program is the second most popular Server program, contributing 34% of total Server usage. It models dynamical X-ray diffraction from strained crystals and multilayers for any Bragg-case geometry including grazing incidence and exit. This paper reports on a revision of equations used by the program, which yields ten times faster calculations in most use cases, on implementing calculations of X-ray standing waves and on adding new options for modelling diffraction from monolayers.


2020 ◽  
Vol 35 (10) ◽  
pp. 2298-2304
Author(s):  
Christopher Schlesiger ◽  
Sebastian Praetz ◽  
Richard Gnewkow ◽  
Wolfgang Malzer ◽  
Birgit Kanngießer

New developments in the description and modeling of Highly Annealed Pyrolytic Graphite (HAPG) mosaic crystals have led to the possibility of designing optimized optical solutions for X-ray absorption fine structure (XAFS) spectroscopy.


2019 ◽  
Vol 10 (01) ◽  
pp. 227-244
Author(s):  
Jonathan A. Wheeler ◽  
Gérard Mourou ◽  
Toshiki Tajima

With the advent of the Thin Film Compression, high energy single-cycled laser pulses have become an eminent path to the future of new high-field science. An existing CPA high power laser pulse such as a commercially available PW laser may be readily converted into a single-cycled laser pulse in the 10PW regime without losing much energy through the compression. We examine some of the scientific applications of this, such as laser ion accelerator called single-cycle laser acceleration (SCLA) and bow wake electron acceleration. Further, such a single-cycled laser pulse may be readily converted through relativistic compression into a single-cycled, X-ray laser pulse. We see that this is the quickest and very innovative way to ascend to the EW (exawatt) and zs (zeptosecond) science and technology. We suggest that such X-ray laser pulses have a broad and new horizon of applications. We have begun exploring the X-ray crystal (or nanostructured) wakefield accelerator and its broad and new applications into gamma rays. Here, we make a brief sketch of our survey of this vista of the new developments.


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