Multiple scattering theory for slow neutrons (from thermal to ultracold)
Kurchatov Institute, 123182 Moscow, Russia
Published online: 15 May 2000
The general theory of neutron scattering is presented, valid for the whole domain of slow neutrons from thermal to ultracold. Particular attention is given to multiple scattering which is the dominant process for ultracold neutrons (UCN). For thermal and cold neutrons, when the multiple scattering in the target can be neglected, the cross-section is reduced to the known value. A new expression for inelastic scattering cross-section for UCN is proposed. Dynamical processes in the target are taken into account and their influence on inelastic scattering of UCN is analyzed.
PACS: 28.20.-v – Neutron physics / 61.12.Bt – Theories of diffraction and scattering
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000