Scherrer Equation unit dilemma

[NaN089]

Hi,

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?

Thanks

 

[Doc Al]

You may find some of the discussion in this old thread useful: https://www.physicsforums.com/showthread.php?t=223968

 

[NaN089]

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.

Thanks