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Iran Iran · Tehran · 35.738, 51.388

Tehran Research Reactor (TRR)

Tehran Research Reactor (TRR), a research reactor (pool) in Tehran, Iran, with 5 MW of thermal power, operated by Nuclear Science and Technology Research Institute (NSTRI). Operating, first critical in 1967.

It is the most powerful research reactor in Iran, of the 4 currently operating. It was the first research reactor in Iran to go critical and is still operating 59 years later. It is one of 48 pool-type reactors operating worldwide, spread across 28 countries. Its declared uses include isotope production, neutron radiography, transmutation and gemstone irradiation.

Country
Iran
City
Tehran
Type
Pool
Thermal power
5 MW
Operator
Nuclear Science and Technology Research Institute (NSTRI)
Status
Operating
First criticality
1967
Purpose
Isotope production, neutron radiography, transmutation, gemstone irradiation, teaching, training, activation analysis, geochronology, neutron capture therapy, innovative research, nuclear data, materials testing

Data: IAEA RRDB · updated on Sep 3, 2026

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