Electron irradiation test facility for irradiation of structural materials in conditions of molten salt reactor

摘要

A new device, Electron Irradiation Test Facility (EITF), has been created at electron linear accelerator Linac-10 at Accelerator R&D Complex affiliated with NSC KIPT. This facility allows to carry on studies on corrosion resistance of differently shaped samples of the Hastelloy type alloys in the melt of zirconium and sodium fluoride salts at high temperature. A container assembly (CA) that held samples was irradiated for 700 hours in the radiation field of electron beam with the energy ∼10 MeV and average current ∼500 microAmps (power∼5 kW ). The CA consisting of 16 containers (made of a carbon-carbon composite) that were loaded with research samples of Hastelloy alloys in the melt of the salts ZrF₄ и NaF was placed in air-tight protective shell made of stainless steel. During the irradiation, the CA was placed in argon atmosphere. The CA temperature was monitored with three thermocouples. Over the entire length of the irradiation process the stationary temperature regime was provided: 650°С ± 15°С.