Shielding Design of the Cold Neutron Source for the KIPT Neutron Source Facility

摘要

Argonne National Laboratory (ANL) of the United States and Kharkov Institute of Physics and Technology (KIPT) of Ukraine have cooperated on the development, design, and construction of a neutron source facility . The facility was constructed at Kharkov, Ukraine and its commissioning process is underway. The facility will be utilized for research, producing medical isotopes, and training young nuclear specialists. The neutron source facility is designed including a cryogenically cooled neutron moderator system to provide a cold neutron source (CNS). The low energy neutrons from the cold neutron source will be utilized in scattering experiments, material structure analyses, and other utilizations. Cold neutron guides , coated with reflective materials for the low energy neutrons, are used to transport the cold neutron beams to the experimental site. Most of the gamma rays and high-energy neutrons are not affected by the cold neutron guides. These guides are extended several meters outside the main shield of the neutron source facility, and curved guides are used to reduce the gamma rays and high-energy neutron fluxes.