Borehole Siting Technique for Geological Repositories of Radioactive Waste
The purpose of siting repositories is to reveal those most promising for the development of deep geological repository (DGR) for radioactive wastes. The technique of siting borehole DGRs is described as follows.
The neutron tube NTG-2 is comprised of a cermet (glass- metal) body housing a Penning-type ion source with incandescent or cold cathode, a system of forming and accelerating electrodes, and a neutron-generating target. The distance between the active target surface and the tube face is 25 mm. In the glass-metal version this distance is 1 mm. The neutron tube NTG-3 is made of cermet (glass-metal) body housing an orbitron ion source.
Semiconductor Detectors for Nuclear Radiation Spectrometry
Semiconductor detectors are among the most important devices employed for the spectral analysis of nuclear radiation, although the type of semiconductor detector to be used depends on the specific problem to be resolved.
Neutron Filtered Beam Technique at the Kyiv Research Reactor (KRR)
The neutron filter technique is characterized by the transmission of neutron beams emanating from nuclear research reactors through relatively thick (up to 2–2.5 m) layers of materials with deep interference minimums in the total neutron cross sections. As a result of passing through these interference minimums, narrow energy range "filtered" neutrons emerge as quasi-monochromatic beams.
The novel soft technology for production of isotope Mo-99/Tc-99m, Cu-67, Sc-47, Co-57, W-181, Pt-195m and oth. with the use of high-energy bremsstrahlung of the electron accelerator has been developed.