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Scherrer Equation unit dilemma

  1. Apr 9, 2012 #1

    I am a bit confused about the units of

    L = (0.9λ)/(βcosθ)

    the Scherrer equation used in powder diffraction. My idea is

    λ= radiation wavelength with unit (angstrom)
    β= FWHM with unit (radians)
    θ= braggs angle with unit (degrees)
    L= particle size with unit (angstrom)

    Am I right in saying so???

  2. jcsd
  3. Apr 9, 2012 #2

    Doc Al

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    Staff: Mentor

  4. Apr 9, 2012 #3
    Thank you for your help. The notes that my lecturer gave had the info that I provided here. I was a bit confused and had to check with someone else. Now I know it was a printing mistake. They need to be in radians.

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