Photonics Dictionary

Bragg's law

The law expressing the condition under which a crystal will reflect a beam of x-rays with the greatest amount of distinction or resolution and, at the same time, denoting the angle at which the reflection occurs. For x-ray reflection, the angle formed by the incident or the reflected beam and the crystal planes is the one generally used. If this Bragg angle is represented by q, if d represents the distance between the planes or layers of atoms, and if l is the wavelength of the x-rays, the law may be expressed by the equation:
assuming that n must be a whole number.
We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.