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Pakistan Pakistan · Islamabad · 33.699, 73.037 (approximate location)

PARR-1

PARR-1, a research reactor (pool) in Islamabad, Pakistan, with 10 MW of thermal power, operated by Pakistan Institute of Nuclear Science & Technology. Operating, first critical in 1965.

By thermal power it ranks second among the 6 research reactors operating in Pakistan. It was the first research reactor in Pakistan to go critical and is still operating 61 years later. It is one of 48 pool-type reactors operating worldwide, spread across 28 countries. Its declared uses include isotope production, neutron scattering, neutron radiography and teaching.

Country
Pakistan
City
Islamabad
Type
Pool
Thermal power
10 MW
Operator
Pakistan Institute of Nuclear Science & Technology
Status
Operating
First criticality
1965
Purpose
Isotope production, neutron scattering, neutron radiography, teaching, training, activation analysis, geochronology

Data: IAEA RRDB · updated on Sep 3, 2026

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