scattering_angle_to_lattice_parameter#

diffsims.utils.sim_utils.scattering_angle_to_lattice_parameter(electron_wavelength, angle)[source]#

Convert scattering angle data to lattice parameter sizes.

Parameters:

electron_wavelength (float) – Wavelength of the electrons in the electron beam. In nm. For 200 kV electrons: 0.00251 (nm)
angle (NumPy array) – Scattering angle, in radians.

Returns:

lattice_parameter – Lattice parameter, in nanometers

Return type:

NumPy array

Examples

>>> import diffsims.utils.sim_utils as sim_utils
>>> angle_list = [0.1, 0.1, 0.1, 0.1] # in radians
>>> wavelength = 2.51/1000 # Electron wavelength for 200 kV
>>> lattice_size = sim_utils.scattering_angle_to_lattice_parameter(
...     wavelength, angle_list)