Results 1 to 10 of about 2,485,167 (362)

Int3D: A Data Reduction Software for Single Crystal Neutron Diffraction

Crystals, 2021
We describe a new software package for the data reduction of single crystal neutron diffraction using large 2D detectors. The software consists of a graphical user interface from which the user can visualize, interact with and process the data.
Nebil A. Katcho, Laura Cañadillas-Delgado, Oscar Fabelo, María Teresa Fernández-Díaz, Juan Rodríguez-Carvajal   +4 more
doaj   +1 more source

Axial-Symmetric Diffraction Radiation Antenna with a Very Narrow Funnel-Shaped Directional Diagram

Applied Sciences, 2021
The paper is focused on reliable modeling and analysis of axially symmetric radiators with a very narrow (throat) funnel-shaped radiation pattern. When such a diagram is formed, a wave analogue of Smith–Purcell coherent radiation is realized—the surface ...
Yuriy Sirenko, Seil Sautbekov, Merey Sautbekova, Nataliya Yashina, Nursaule Burambayeva, Assel Begimova   +5 more
doaj   +1 more source

Regimes of atomic diffraction: Raman versus Bragg diffraction in retroreflective geometries [PDF]

, 2020
We provide a comprehensive study of atomic Raman and Bragg diffraction when coupling to a pair of counterpropagating light gratings (double diffraction) or to a single one (single diffraction) and discuss the transition from one case to the other in a ...
Abend, Sven, Giese, Enno, Hartmann, Sabrina, Jenewein, Jens, Rasel, Ernst M., Roura, Albert, Schleich, Wolfgang P.   +6 more
core   +2 more sources

X-ray crystal structure of cytotoxic oxidized cholesterols: 7-ketocholesterol and 25-hydroxycholesterol

Journal of Lipid Research, 1997
The cytotoxic cholesterol derivative, 7-ketocholesterol, crystallizes in a monoclinic unit cell, space group P2(1) with a = 11.405 A, b = 6.288 A, c = 35.393 A and beta = 92.75 degrees (Z = 4).
M P McCourt, K Ashraf, R Miller, C M Weeks, N Li, W Pangborn, D L Dorset   +6 more
doaj   +1 more source

Diffraction Impact onto Regularized Plasma Channel Formation by Femtosecond Laser Filamentation

Photonics, 2023
Focused femtosecond beam filamentation after amplitude masks has been studied experimentally and numerically. We deduced conditions (energy per hole, diameter and geometrical composition of holes, focal length) providing for the formation of the ...
Ekaterina Mitina, Daria Uryupina, Daniil Shipilo, Irina Nikolaeva, Nikolay Panov, Roman Volkov, Olga Kosareva, Andrei Savel’ev   +7 more
doaj   +1 more source

Structural determination and packing analysis of a cholesteryl caprate/cholesteryl laurate solid solution.

Journal of Lipid Research, 1994
This paper describes the X-ray crystal structure analysis of a cholesteryl ester solid solution, cholesteryl decanoate/cholesteryl laurate, grown from a bulk concentration with molar ratio 0.56/0.43. The unit cell is monoclinic with a = 12.969, b = 9.048,
M.P. McCourt, P. Strong, W. Pangborn, D.L. Dorset   +3 more
doaj   +1 more source

Incommensurate structures of the [CH3NH3][Co(COOH)3] compound

IUCrJ, 2019
The present article is devoted to the characterization of the structural phase transitions of the [CH3NH3][Co(COOH)3] (1) perovskite-like metal–organic compound through variable-temperature single-crystal neutron diffraction.
Laura Canadillas-Delgado, Lidia Mazzuca, Oscar Fabelo, J. Alberto Rodriguez-Velamazan, Juan Rodriguez-Carvajal   +4 more
doaj   +1 more source

Three-dimensional Quantum Slit Diffraction and Diffraction in Time [PDF]

, 2014
We study the quantum slit diffraction problem in three dimensions. In the treatment of diffraction of particles by a slit, it is usually assumed that the motion perpendicular to the slit is classical.
Beau, Mathieu, Dorlas, T. C.
core   +4 more sources

Lattice Strain and Defects Analysis in Nanostructured Semiconductor Materials and Devices by High-Resolution X-Ray Diffraction: Theoretical and Practical Aspects.

Small Methods, 2021
The reliability of semiconductor materials with electrical and optical properties are connected to their structures. The elastic strain field and tilt analysis of the crystal lattice, detectable by the variation in position and shape of the diffraction ...
S. Dolabella, A. Borzì, A. Dommann, A. Neels   +3 more
semanticscholar   +1 more source

Piecewise Linear Weighted Iterative Algorithm for Beam Alignment in Scanning Beam Interference Lithography

Photonic Sensors, 2019
To obtain a good interference fringe contrast and high fidelity, an automated beam iterative alignment is achieved in scanning beam interference lithography (SBIL).
Ying Song, Bayanheshig, Shuo Li, Shan Jiang, Wei Wang   +4 more
doaj   +1 more source