Single-wavelength anomalous diffraction (SAD) is a technique used in X-ray crystallography that facilitates the determination of the structure of proteins...
6 KB (786 words) - 04:35, 24 September 2024
Multi-wavelength anomalous diffraction (sometimes Multi-wavelength anomalous dispersion; abbreviated MAD) is a technique used in X-ray crystallography...
9 KB (906 words) - 02:46, 22 June 2024
Similar diffraction patterns can be produced by related scattering techniques such as electron diffraction or neutron diffraction. If single crystals...
33 KB (4,265 words) - 17:54, 15 September 2024
wavelength should be close to the heavy atom's absorption edge. Multi-wavelength anomalous diffraction (MAD) Single-wavelength anomalous diffraction (SAD)...
4 KB (571 words) - 12:19, 5 December 2023
Isomorphous replacement (section Anomalous diffraction)
residues. PtCl42− (ion) bind to His Multi-wavelength anomalous diffraction (MAD) Single-wavelength anomalous diffraction (SAD) Patterson map "Dictionary of common...
6 KB (714 words) - 02:18, 22 June 2024
Powder diffraction is a scientific technique using X-ray, neutron, or electron diffraction on powder or microcrystalline samples for structural characterization...
32 KB (4,302 words) - 16:43, 1 July 2024
X-ray crystallography (redirect from X-ray diffraction analysis)
beam of incident X-rays to diffract in specific directions. By measuring the angles and intensities of the X-ray diffraction, a crystallographer can produce...
112 KB (11,615 words) - 01:34, 20 September 2024
Anomalous diffraction theory (also van de Hulst approximation, eikonal approximation, high energy approximation, soft particle approximation) is an approximation...
2 KB (373 words) - 18:43, 20 September 2020
X-ray scattering techniques (redirect from Resonant anomalous X-ray scattering)
classic text from 1963 is titled "X-ray diffraction in Crystals, Imperfect Crystals and Amorphous Bodies" so 'diffraction' was clearly not restricted to crystals...
5 KB (427 words) - 18:18, 7 September 2024
multi-wavelength anomalous dispersion (MAD) method. In this technique, atoms' inner electrons[clarification needed] absorb X-rays of particular wavelengths...
10 KB (1,134 words) - 05:58, 24 September 2024
Dispersion (optics) (redirect from Anomalous dispersion)
increases with increasing wavelength (which is typically the case in the ultraviolet), the medium is said to have anomalous dispersion. At the interface...
33 KB (3,428 words) - 21:30, 13 October 2024
Optics (section Diffraction and optical resolution)
of situations such as diffraction through a single gap, diffraction through multiple slits, or diffraction through a diffraction grating that contains...
106 KB (12,873 words) - 03:30, 10 October 2024
with respect to wavelengths of light, and that are optically "soft" (i.e., with a refractive index close to 1). Anomalous diffraction theory applies to...
23 KB (2,816 words) - 23:25, 14 October 2024
Superlens (section Analysis of the diffraction limit)
lens, is a lens which uses metamaterials to go beyond the diffraction limit. The diffraction limit is a feature of conventional lenses and microscopes...
97 KB (11,286 words) - 04:47, 13 July 2024
imaging, and tomography. The Ångström-scale wavelength of X-rays enables imaging well below the diffraction limit of visible light, but practically the...
27 KB (3,316 words) - 10:49, 14 April 2024
Graphene (redirect from Anomalous quantum Hall effect)
Although a single sheet of graphene appears to be nearly transparent, graphite itself is black in color, as it absorbs all wavelengths of visible light...
265 KB (27,761 words) - 02:47, 15 October 2024
area diffraction, a crystallographic experimental technique Sum of absolute differences, in digital image processing Single-wavelength anomalous dispersion...
2 KB (229 words) - 01:38, 25 March 2024
for particles of arbitrary shape. The anomalous diffraction approximation is valid for large (compared to wavelength) and optically soft spheres; soft in...
58 KB (9,201 words) - 20:51, 13 September 2024
Metamaterial (section Single negative)
to match the wavelength of light, versus other metamaterials that expose sub-wavelength structure. Furthermore, PCs function by diffracting light. In contrast...
93 KB (10,025 words) - 20:55, 10 October 2024
Diffraction depends on the relationship between the wavelength and the size of the obstacle. In other words, the size of the obstacle in wavelengths....
44 KB (6,551 words) - 01:41, 4 October 2024
Kikuchi lines (physics) (category Diffraction)
they are easily seen in diffraction from regions of the specimen thick enough for multiple scattering. Unlike diffraction spots, which blink on and...
17 KB (2,219 words) - 00:12, 10 June 2024
decrease with increasing wavelength, and thus increase with frequency. This is called "normal dispersion", in contrast to "anomalous dispersion", where the...
78 KB (8,738 words) - 21:55, 22 September 2024
elucidation of proteins by X-ray crystallography using single- or multi-wavelength anomalous diffraction (SAD or MAD). The incorporation of heavy atoms such...
8 KB (646 words) - 10:44, 26 September 2023
a wavelength), resulting in complete destructive interference and an anomalous dark region; if the phase difference reached 360° (a full wavelength),...
13 KB (1,567 words) - 05:26, 19 May 2023
Backscatter Kikuchi diffraction, see EBSD BRET – Bioluminescence resonance energy transfer BSED – Back scattered electron diffraction, see EBSD CAICISS...
14 KB (1,389 words) - 13:16, 30 July 2024
area by the diffraction-limited resolution of the lens which is given by the Airy disk whose diameter is 2.4λu/D, where λ is the wavelength of the light...
38 KB (4,703 words) - 08:20, 19 May 2024
diffraction (LEED) is a method of bombarding a crystalline material with a collimated beam of electrons and then observing the resulting diffraction patterns...
154 KB (15,572 words) - 12:41, 9 October 2024
meaning the refractive index does not change as strongly with different wavelengths of light. In other words, the light passing through the glass has a smaller...
16 KB (1,628 words) - 02:32, 18 August 2024
an atom with an unpaired spin. This means that this type of anomalous X-ray diffraction does contain information of the desired type. More recently,...
15 KB (1,495 words) - 16:50, 15 May 2024
parameter x, which is the ratio of its characteristic dimension to its wavelength: x = 2 π r λ . {\displaystyle x={\frac {2\pi r}{\lambda }}.} The FDTD...
8 KB (891 words) - 18:50, 14 July 2023