Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

About Bragg's Law

  1. Apr 2, 2012 #1
    In the Bragg's Law, what is the equation 2dsinθ = nλ actually used to find?
  2. jcsd
  3. Apr 2, 2012 #2
    It is normally used to determine the wavelength of an x-ray by knowing the crystal lattice spacing and measuring the diffraction angle..
  4. Apr 3, 2012 #3
    ... it can also be used the other way round - i.e. to derive structural parameters from a sample, e.g. distances between electron densities (=d) using a known wavelength (=lamda).
    This is used in diffraction experiments (XRD) like in crystallography or in small angle x-ray scattering (SAXS).
  5. Apr 3, 2012 #4
    And finally, it can be used to calculate the angle(s), for a given structure and wavelength. So you can design an x-ray monochromator, for example.
  6. Apr 3, 2012 #5
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: About Bragg's Law
  1. About gauss law (Replies: 5)

  2. Question about lenz law (Replies: 10)