RITM-F facility

Abstract

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.

RF TBMs for ITER tests

“…The main technical requirements for these reactors are the following: (1) total electric power around 1.5 GW; (2) the tritium breeding ratio (TBR) ≥1.05-1.1; (3) the structural materials should withstand the first wall fluence up to [15][16][17][18][19][20] MWa/m 2 with the possible replacement of in-vessel components after 5-10 MWa/m 2 .…”

“…The functional reactor facility (RITM-F) for tritium breeding models tests has been fabricated and put into operation [16,17]. The in-pile testing of breeding zone model for the CHC TBM in the conditions of permanent tritium extraction have been performed [18].…”

Research and development of lithium ceramics and models of tritium breeding zones for blankets in Russian reactor projects

“…It then passes through a lithium ceramic bed to the upper part of the breeder. Two metal filters are placed between the ceramic and gauze elements on the upper and lower parts of the breeder to prevent the ejection of possible crushed lithium ceramics into the model space and further into the gas tritium system of the RITM-F facility [8]. Parts of the pipes for inlet and outlet of purge-gas outside the breeder are heated just under g-irradiation.…”

“…The RITM-F facility [8] was designed, manufactured and installed in the reactor to test and measure the processing parameters under neutron irradiation. FIGURE 6 Block diagram of the RITM-F tritium system.…”