Principle
The spectra of the X-rays that are reflected with various different orientations by NaCl monocrystals are analysed. The associated interplanar spacings are determined based on the Bragg angles of the characteristic lines.
Tasks
- Determine the intensity of the X-rays that are reflected by the NaCl monocrystals with the orientations [100], [110] and [111] as a function of the Bragg angle.
- Assign the reflections to the corresponding lattice planes that are given by way of their respective Miller indices.
- Determine the lattice constant and calculate the interplanar spacing.
- Determine the mass of a cell and the number of atoms in the cell.
Learning objectives
- Characteristic X-radiation
- Energy levels
- Crystal structures
- Reciprocal lattices
- Miller indices
- Atomic form factor
- Structure factor
- Bragg scattering