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Russia Russia · Dimitrovgrad · 54.183, 49.583

MBIR

MBIR, a research reactor (fast) in Dimitrovgrad, Russia, with 150 MW of thermal power, operated by JSC Research Institute of Atomic Reactors. Under construction.

It will join the 57 research reactors operating in Russia today. 15 fast research reactors remain in operation today across 6 countries. It is one of 4 research reactors in 3 countries that Rosatom / URSS designed or built. Its declared uses include isotope production, transmutation and materials testing.

Country
Russia
City
Dimitrovgrad
Type
Fast
Thermal power
150 MW
Operator
JSC Research Institute of Atomic Reactors
Design and construction
Designed by NIKIET (Rosatom) · built by Rosatom
Status
Under construction
First criticality
Purpose
Isotope production, transmutation, materials testing

Data: IAEA RRDB · updated on Sep 3, 2026

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