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Japan Japan · Osaka · 34.694, 135.502 (approximate location)

KUR

KUR, a research reactor (tank) in Osaka, Japan, with 5 MW of thermal power, operated by Research Reactor Institute, Kyoto University. Operating, first critical in 1964.

By thermal power it ranks fourth among the 9 research reactors operating in Japan. It went critical 7 years after the first research reactor in Japan, JRR-1 (1957). It is one of 36 tank-type reactors operating worldwide, spread across 23 countries. Its declared uses include neutron scattering, neutron radiography, teaching and training.

Country
Japan
City
Osaka
Type
Tank
Thermal power
5 MW
Operator
Research Reactor Institute, Kyoto University
Status
Operating
First criticality
1964
Purpose
Neutron scattering, neutron radiography, teaching, training, activation analysis, neutron capture therapy, materials testing

Data: IAEA RRDB · updated on Sep 3, 2026

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