neutronpy.crystal.Material.get_two_theta

Material.get_two_theta(hkl, wavelength)

Returns the detector angle 2𝜃 for a given reciprocal lattice vector and incident wavelength.

Parameters:

hkl : array_like

Reciprocal lattice vector in r.l.u.

wavelength : float

Wavelength of the incident beam in Å

Returns:

two_theta : float

The angle of the detector 2𝜃 in degrees