Markelov Vitalii D. Research Engineer IPPE JSC vdmarkelov@ippe.ruEstimates of Gaseous Fission Product Release from Mononitride Fuel into the Primary Circuit of the BR-10 Reactor 5/18/2026 2026 - #02 Safety, Reliability and Diagnostics of NPI Dmitriev D.V. Markelov V.D. Filimonov E.V.