Ivanov Andrey A. Head of Laboratory IPPE JSC ivanov@ippe.ruStudies of the BN-350 Reactor Fuel, Structural and Absorbing Materials at the Hot Laboratory of the IPPE 9/25/2023 2023 - #03 Letters ti the editorial office Porollo S.I. Dvoriashin A.M. Tarasikov V.P. Ivanov A.A. Shulepin S.V.