In order to make it easier to understand the information in
a diffraction pattern, we
use reciprocal lattices. A
reciprocal lattice is a construction drawn in reciprocal space, where we use
reciprocal space. A dimension of 1/d,
where d is the spacing between crystal
planes, is frequently used.
Click on the animation to rearrange the Bragg equation to show the
equation for 1/d..
s
Consider a beam of waves to be incident on a crystal. The
measurement, r, made from the diffraction
pattern, tells us about 2qB. From this we can deduce 1/d, since we know that for diffraction of
radiation of wavelength, l, the Bragg angle, qB, increases with 1/d.
Click on the animation to rearrange the Bragg equation to show the
equation for 1/d..
Consider a beam of waves to be incident on a crystal. The
measurement, r, made from the diffraction
pattern, tells us about 2qB. From this we can deduce 1/d, since we know that for diffraction of
radiation of wavelength, l, the Bragg angle, qB, increases with 1/d.
