Affiliation:
1. B.P. Konstantinov Petersburg Nuclear Physics Institute of NRC “Kurchatov Institute”
2. Saint Petersburg State University
3. M.N. Mikheev Institute of Metal Physics of RAS (Ural branch)
4. NRC “Kurchatov Institute”
Abstract
Aspects of the experimental implementation of the small-angle neutron scattering (SANS) method on a compact neutron source are considered. A scientific justification of the demand for this type of instrument is formulated. A scheme for implementing the SANS method on a pulsed neutron source is proposed, which ensures high efficiency of using a neutron beam by limiting the operating wavelength range, and, as a result, maximizing the frequency and time-averaged power/intensity of the source. The physical parameters of the key elements of the facility, such as the cold neutron moderator, the beam chopper cascade, the collimation system, the sample unit and the wide-aperture position-sensitive detector, are described. It is shown that the small-angle scattering method can be implemented on a university-type pulsed neutron source.
Publisher
The Russian Academy of Sciences