X-Ray Diffraction Model

Purpose

Show analog between diffraction of light by a two-dimensional grating and diffraction of x-rays by a single crystal.◙

Equipment

Laser with slides of optical crystals an two-dimensional gratings.◙

Images

p2-12

Description

A laser beam is incident on a two-dimensional grating, resulting in a diffraction pattern which has the symmetry of the grating and is similar to the diffraction pattern of x-rays from a single crystal with that symmetry. A variety of optical crystals is available.