Pakistan Atomic Research Reactor

The Pakistan Atomic Research Reactor or (PARR) are two nuclear research reactors and two other experimental neutron sources located in the PINSTECH Laboratory, Nilore, Islamabad, Pakistan.

Pakistan Atomic Research Reactor
Location of Pakistan Atomic Research Reactor
Operating InstitutionPakistan Institute of Nuclear Science and Technology (PINSTECH)
LocationNilore, Islamabad, Pakistan
Coordinates33°39′13″N 73°15′30″E
TypeOpen pool reactor
Materials Test Reactor
Miniature neutron source reactor (MNSR)
SLOWPOKE reactor
Power10 MW (PARR-I)
30 Kw (PARR-II)
Construction and Upkeep
Construction CostUnknown
Construction Began8 July 1965 (1965-07-08)
Time to Construct5 months
First Criticality21 December 1965 (1965-12-21)
Shutdown dateN/A
Decommission dateN/A
StaffClassified
OperatorsClassified
Refuel FrequencyN/A
Technical Specifications
Max Thermal Flux1.05E+13 n/cm^2-s
Max Fast Flux1.70E+14 n/cm^2-s
Coolinglight water
Neutron Moderatorlight water
Neutron Reflectorheavy water, graphite, beryllium
Control Rods8 Rods
Cladding MaterialAluminium Alloy

In addition a reprocessing facility referred to as New Labs also exists for nuclear weapons research and production.

The first nuclear reactor was supplied and financially constructed by the Government of United States of America in the mid 1960s. The other reactor and reprocessing facility are built and supplied by Pakistan Atomic Energy Commission (PAEC) in the 1970s and 1980s, respectively. Supervised by the United States and International Atomic Energy Agency (IAEA), the first two reactors are subject to IAEA safeguards and its inspections.

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