Bragg's law

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Related to Bragg Law: diffraction, Bragg reflection

Bragg's law

 (brăgz)
n.
The fundamental law of x-ray crystallography, nλ = 2dsinθ, where n is an integer, λ is the wavelength of a beam of x-rays incident on a crystal with lattice planes separated by distance d, and θ is the Bragg angle.

[After Sir William Henry Bragg and Sir William Lawrence Bragg.]

Bragg's law

n
(General Physics) the principle that when a beam of X-rays of wavelength λ enters a crystal, the maximum intensity of the reflected ray occurs when sin θ = nλ/2d, where θ is the complement of the angle of incidence, n is a whole number, and d is the distance between layers of atoms
[C20: named after William and Lawrence Bragg]
References in periodicals archive ?
The Bragg law relates the d-spacing for a specific reflection [d.
Key words: x-ray diffraction, residual stress, machined surface, Bragg law, Brag-Brentano diffractometer
When polycrystalline materials are irradiated with neutrons, a strong diffracted effect occurs at specific angles governed by the Bragg law (Figure 2).