- #1
dg88
- 10
- 0
Hello all,
I have a basic question with the theta-2theta technique in XRD. Here it is:
If I have a single crystal material and I perform the above mentioned characterization. Should I get one diffraction peak associated to the orientation of the bulk crystal or should I get many peaks. This doubt arises because of two reasons:
1)as we scan theta in a given range, the direction of the wave vector changes. This wave vector coincides with different lattice directions as we change theta.
2) The bulk crystal has all the crystal directions [hkl] within it. So if we do the Ewald construction, I feel that the wave vector sphere should intersect with more than one reciprocal lattice point rather than just one.
Thanks in advance
I have a basic question with the theta-2theta technique in XRD. Here it is:
If I have a single crystal material and I perform the above mentioned characterization. Should I get one diffraction peak associated to the orientation of the bulk crystal or should I get many peaks. This doubt arises because of two reasons:
1)as we scan theta in a given range, the direction of the wave vector changes. This wave vector coincides with different lattice directions as we change theta.
2) The bulk crystal has all the crystal directions [hkl] within it. So if we do the Ewald construction, I feel that the wave vector sphere should intersect with more than one reciprocal lattice point rather than just one.
Thanks in advance