diffraction line profile

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• Diffraction topography — (short: topography ) is an X ray imaging technique based on Bragg diffraction. Diffraction topographic images ( topographs ) record the intensity profile of a beam of X rays (or, sometimes, neutrons) diffracted by a crystal. A topograph thus… …   Wikipedia

• Diffraction — Computer generated intensity pattern formed on a screen by diffraction from a square aperture …   Wikipedia

• Rietveld refinement — is a technique devised by Hugo Rietveld for use in the characterisation of crystalline materials. The neutron and x ray diffraction of powder samples results in a pattern characterised by peaks in intensity at certain positions. The height, width …   Wikipedia

• Hugo Rietveld — Hugo M. Rietveld is a Dutch crystallographer and one of the most prominent crystallographers of the 20th century. He is famous for his invention of the Rietveld refinement method, which is used for the characterisation of crystalline materials… …   Wikipedia

• Airy disk — Computer generated image of an Airy disk. The gray scale intensities have been adjusted to enhance the brightness of the outer rings of the Airy pattern …   Wikipedia

• Metamaterial antenna — This Z antenna tested at the National Institute of Standards and Technology is smaller than a standard antenna with comparable properties. Its high efficiency is derived from the Z element inside the square that acts as a metamaterial, greatly… …   Wikipedia

• Wireless energy transfer — or wireless power is the transmission of electrical energy from a power source to an electrical load without artificial interconnecting conductors. Wireless transmission is useful in cases where interconnecting wires are inconvenient, hazardous,… …   Wikipedia

• Francis Crick — Infobox Scientist name = Francis Harry Compton Crick |225px image width = 225px caption = Francis Harry Compton Crick birth date = 8 June 1916 birth place = Weston Favell, Northamptonshire, England residence = UK, U.S. nationality = British death …   Wikipedia

• Silver behenate — Silver behenate, a possible low angle diffraction standard, was characterized using the powder diffraction technique. Diffraction patterns obtained with 1.54 Å synchrotron and Cu Ka radiations showed thirteen regularly spaced (001) peaks in the… …   Wikipedia

• Loudspeaker enclosure — A loudspeaker enclosure is a cabinet designed to transmit sound to the listener via mounted loudspeaker drive units. The major role of the enclosure is to prevent the out of phase sound waves from the rear of the speaker from combining with the… …   Wikipedia

• Nobel Prizes — ▪ 2009 Introduction Prize for Peace       The 2008 Nobel Prize for Peace was awarded to Martti Ahtisaari, former president (1994–2000) of Finland, for his work over more than 30 years in settling international disputes, many involving ethnic,… …   Universalium