Six Types of Neutron Scattering

The type of neutron scattering depends on the incident wave frequency vq and the scattered wave frequency v. If vq is equai to v, we have coherentiy scattered radiation if not, we have incoherently scattered radiation. In coherently scattered radiation, phases of the electric and magnetic fields of incident radiation and those of scattered radiation are in a definite relation to each other. 

The differential cross section is a measurable quantity, for example, from the sample count rate /. It can be calculated using 

The scattering law 5(Q, ) is the double Fourier transform G(r, f) of the space-time correlation function  

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