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India India · Kalpakkam · 12.562, 80.165

FBTR

FBTR, a research reactor (fast) in Kalpakkam, India, with 40 MW of thermal power, operated by Indira Gandhi Centre for Atomic Research. Operating, first critical in 1985.

By thermal power it ranks second among the 5 research reactors operating in India. It went critical 29 years after the first research reactor in India, Apsara (1956). It is one of 15 fast research reactors operating worldwide, spread across 6 countries. Its declared uses include isotope production, training and materials testing.

Country
India
City
Kalpakkam
Type
Fast
Thermal power
40 MW
Operator
Indira Gandhi Centre for Atomic Research
Status
Operating
First criticality
1985
Purpose
Isotope production, training, materials testing

Data: IAEA RRDB · updated on Sep 3, 2026

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