Requires a Wolfram Notebook System
Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.
Bragg's law describes the reflection of a monochromatic xÃ¢ÂÂray beam by two parallel crystalline planes separated by a distance . The difference in path lengths is equal to and this determines a necessary condition for constructive interference from a family of parallel planes. The Bragg condition enables spacings between many different sets of crystalline planes to be determined.[more]
For adequate choice of angle, phase and frequencies, the lattice distance exhibit constructive interference, otherwise, the X-rays interfere destructively and there is no diffraction pattern (resulting wave in red).[less]
Contributed by: Enrique Zeleny (February 2009)
Open content licensed under CC BY-NC-SA
Wolfram Demonstrations Project
Published: February 20 2009