METHOD AND APPARATUS FOR NEUTRON DOPING OF SUBSTANCE

摘要

FIELD: chemistry.SUBSTANCE: method for neutron doping of a substance involves slowing down fast source neutrons with a retarder substance, forming a stream of slow neutrons in a selected region and irradiating the substance to be doped with the slow neutrons. During the slowing down process, the fast source neutrons are separated according to propagation angles thereof; streams thereof moving a direction selected by the structure of the retarder substance are selected; streams selected by the structure are summed up, formed into a narrow band and directed onto the substance to be doped, which is controllably moved in the focal region of the neutron streams.EFFECT: high efficiency of the doping process and forming regions with high degree of doping in given areas of the doped substance.5 cl, 3 dwg, 3 ex