Depending on the scattering geometry, the scattered intensity may be modified by a factor
I' = I/sin(theta)
and/or a factor
I' = I/sin(2 theta)
For example, when a small single crystal is rotated through the Bragg condition, the correction factor is 1/sin(2 theta), whereas the intensity from a powder sample is 1/sin( theta)sin(2 theta), and there is no correction term at all for solution scattering from isolated isotropic particles. A term of the form 1/sin( theta)sin(2 theta) is sometimes known as a "Lorentz factor". (See, e.g., B. E. Warren, X-ray Diffraction, Addison-Wesley, 1969, or other elementary texts on x-ray diffraction). The user can correct for this effect by checking one or both of the "Multiply by sin(theta)" or "Multiply by sin(2theta)" boxes in the Advanced Features panel.