METHOD FOR PRODUCING RADIOACTIVE ISOTOPES IN A NUCLEAR REACTOR AT FAST NEUTRONS

摘要

The invention is related to nuclear technology and may be used for radiation of different materials (targets) by neutrons for production of radionuclides. The essence of invention is the method of radioactive isotopes production in Fast Neutron Nuclear Reactor which includes the following steps. The targets for radio nuclides production are being placed in the radiation assembly between the plumbs made of neutrons slowing materials, and the radiation assembly is being placed in the side screen of Fast Neutron Nuclear Reactor The assemblies not containing nuclear fuel are placed around the radiation assembly. Fast neutrons are passed through the neutrons slowing material and then the slowed neutrons are passed through the radiated material (targets) in radiation assembly. The meaning of the this invention is the fact that the radio isotopes production is being done simultaneously in radiation assembly and surrounding assemblies with content of steel less than 50% The targets of radiation assembly have the absorption cross-section over 1 barn with neutrons energy less than 0,1 MeV. The targets of assemblies surrounding the radiation assembly have the neutrons absorption cross-section less than 1 barn with neutrons energy over 0.1 MeV.