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For validation of fusion reactors breeding zones feasibility, a facility for functional in-reactor investigations of tritium-breeding models (RITM-F), based on an IVV-2M reactor has been constructed. The test program will be distinguished as functional tests. The RITM-F facility will consist of an experimental channel with a breeding zone model, a tritium extraction system, a cooling system, a monitoring and management system, and a system for processing experimental data. Main characteristics of the RITM-F facility are: models' irradiation environment -helium-neon mixture, pressure -0.04 MPa; minimum pressure in the channel cavity -10 À2 mmHg; tritium purge-gas -neon þ 1% hydrogen, pressure -0.1-0.2 MPa, flow rate -0.1-10 cm 3 =c; interrogation time of parameters' monitoring channels -2-10 c; temperature of purge-gas channel cooling -490 K. Thermal and neutron parameters of the main possible positions of the RITM-F channel in the reactor will be presented.

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