- #1
Phileas.Fogg
- 32
- 0
Hello,
I have X-Ray Diffraction Data: Intensity versus angle [tex] 2 \Theta[/tex] and shall find out the lattice constant and even better the crystal structure. The Data is from a [tex]\Theta-\Theta[/tex]Diffractometer. [tex]\lambda = 1,54 \cdot 10^{-10}m[/tex]
I know that I have to find the peaks and can calculate d from the Bragg equation:
[tex] d = n \lambda/2 \sin\theta[/tex]
Is it correct to take half of the measured angle for the equation and to set n=1 in this case?
Moreover my problem is, I don't know how to find out the lattice constant and the structure by calculating d. I don't have any data to compare d with (where do I get this data?).
I know that the material ist Tungsten Carbide or Tungsten-Cobalt with hexagonal crystal structure, but I shouldn't use this information beforehand. What shall I do?
Regards,
Mr. Fogg
I have X-Ray Diffraction Data: Intensity versus angle [tex] 2 \Theta[/tex] and shall find out the lattice constant and even better the crystal structure. The Data is from a [tex]\Theta-\Theta[/tex]Diffractometer. [tex]\lambda = 1,54 \cdot 10^{-10}m[/tex]
I know that I have to find the peaks and can calculate d from the Bragg equation:
[tex] d = n \lambda/2 \sin\theta[/tex]
Is it correct to take half of the measured angle for the equation and to set n=1 in this case?
Moreover my problem is, I don't know how to find out the lattice constant and the structure by calculating d. I don't have any data to compare d with (where do I get this data?).
I know that the material ist Tungsten Carbide or Tungsten-Cobalt with hexagonal crystal structure, but I shouldn't use this information beforehand. What shall I do?
Regards,
Mr. Fogg