diffraction analysis
41spectrochemical analysis — Any of a group of chemical analysis methods that depend on measurement of the wavelength and intensity of electromagnetic radiation. It is used chiefly to determine the arrangement of atoms and electrons in molecules on the basis of the amounts… …
42List of chemical analysis methods — A list of chemical analysis methods with acronyms.List of methods* Atomic absorption spectroscopy (AAS) * Atomic emission spectroscopy (AES) * Atomic fluorescence spectroscopy (AFS) * Alpha particle X ray spectrometer (APXS) * Capillary… …
43Laue diffraction pattern — ▪ physics in X rays, a regular array of spots on a photographic emulsion resulting from X rays scattered by certain groups of parallel atomic planes within a crystal. When a thin, pencil like beam of X rays is allowed to impinge on a… …
44Linus Pauling — Infobox Scientist name = Linus Pauling caption = Linus Pauling in 1954 birth date = birth date|1901|2|28|df=y birth place = Portland, Oregon, USA residence = United States nationality = United States death date = death date and… …
45clay mineral — any of a group of hydrous aluminum silicate minerals, as kaolinite, illite, and montmorillonite, that constitute the major portion of most clays. [1945 50] * * * Any of a group of important hydrous aluminum silicates with a layered structure and… …
46History of molecular biology — The history of molecular biology begins in the 1930s with the convergence of various, previously distinct biological disciplines: biochemistry, genetics, microbiology, and virology. With the hope of understanding life at its most fundamental… …
47Synchrotron light — This article is mostly concerned with applications of synchrotron radiation. For details of the production of synchrotron light, see synchrotron and synchrotron radiation. Synchrotron light is electromagnetic radiation produced by bending magnets …
48Perutz, Max Ferdinand — born May 19, 1914, Vienna, Austria died Feb. 6, 2002, Cambridge, Cambridgeshire, Eng. Austrian British biochemist. With John Cowdery Kendrew he founded the Medical Research Council Unit for Molecular Biology at the University of Cambridge. His… …
49Bragg's law — In physics, Bragg s law is the result of experiments into the diffraction of X rays or neutrons off crystal surfaces at certain angles, derived by physicist Sir William Lawrence Bragg [ There are some sources, like the Academic American… …
50Rietveld 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 …
