ES
China China · Beijing · 39.907, 116.397 (approximate location)

ESR-901

ESR-901, a research reactor (pool) in Beijing, China, with 1 MW of thermal power, operated by Institute of Nuclear Energy Technology. Operating, first critical in 1964.

It is one of the 18 research reactors operating in China. It went critical 6 years after the first research reactor in China, HWRR-II (1958). It is one of 48 pool-type reactors operating worldwide, spread across 28 countries. Its declared uses include transmutation, gemstone irradiation, teaching and training.

Country
China
City
Beijing
Type
Pool
Thermal power
1 MW
Operator
Institute of Nuclear Energy Technology
Status
Operating
First criticality
1964
Purpose
Transmutation, gemstone irradiation, teaching, training

Data: IAEA RRDB · updated on Sep 3, 2026

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