Difference between revisions of "Bragg's law"

From GISAXS
Jump to: navigation, search
Line 2: Line 2:
 
:<math>n\lambda = 2d\sin\theta \,,</math>
 
:<math>n\lambda = 2d\sin\theta \,,</math>
 
where ''n'' is an integer, ''λ'' is the [[X-ray energy|wavelength]] of the incident wave (e.g. [[X-ray]] or neutron), ''d'' is the spacing between the planes in the atomic [[lattice]], and ''θ'' is the angle between the incident ray and the scattering planes.
 
where ''n'' is an integer, ''λ'' is the [[X-ray energy|wavelength]] of the incident wave (e.g. [[X-ray]] or neutron), ''d'' is the spacing between the planes in the atomic [[lattice]], and ''θ'' is the angle between the incident ray and the scattering planes.
 +
 +
==See Also==
 +
* [http://en.wikipedia.org/wiki/Bragg%27s_law Wikipedia: Bragg's law]

Revision as of 08:43, 16 October 2014

Bragg's law is an equation that predicts the angles at which one will observe coherent scattering (diffraction) from a crystal lattice. It is essentially a special-case of the more general phenomenon of scattering. The law is given by:

where n is an integer, λ is the wavelength of the incident wave (e.g. X-ray or neutron), d is the spacing between the planes in the atomic lattice, and θ is the angle between the incident ray and the scattering planes.

See Also