A gain in the neutron flux density of a mechanical monochromator by two orders of magnitude

A modified version of a mechanical monochromator of neutrons is proposed that provides a gain in a monochromatic neutron flux in the paraxial beam zone by two orders of magnitudes as compared to well-known high-transmission monochromators. The proposed monochromator is characterized by a certain orientation of the axis with respect to a neutron beam and a certain shape of slits. Such a considerable flux increase opens up new opportunities for solving research and applied problems. These are primarily problems involving investigations of weak effects, which are observed, in particular, in studies of small targets and targets with small (nanogram) amounts of substances, including radioactive targets.