| 摘要 |
FIELD: physics. ^ SUBSTANCE: capillary neutron-optical system consists of in line with the optical axis of the system, a neutron source, input collimator, polycapillary lens, and an output collimator. The input part of the polycapillary lens, directed on the neutron source, has a true focus between the input part of the polycapillary lens and the neutron source. The opening of the input collimator is in form of two flattened cones, the small bases of which coincide and are in the focal plane of the input part of the polycapillary lens. The radius of the opening of the input collimator adjacent to the neutron source is equal to the radius of the neutron source. The radius of the opening of the input collimator, adjacent to the polycapillary lens, is equal to the radius of the input part of the polycapillary lens. ^ EFFECT: obtaining bunches of thermal neutrons with different configurations with minimum halo of background radiation, wider functional capabilities of the capillary neutron-optical system with smaller dimensions of the device, and increased radiation safety. ^ 7 dwg
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