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United States United States · Upton, NY · 40.870, -72.876

BMRR Brookhaven Medical

BMRR Brookhaven Medical, a research reactor (tank) in Upton, NY, United States, with 3 MW of thermal power, operated by US Department of Energy. Shut down, first critical in 1959.

It was one of the 340 research reactors the United States has had; 48 remain in operation today. It went critical 17 years after the first research reactor in the United States, CP-1, Chicago Pile 1 (1942). 36 tank-type reactors remain in operation today across 23 countries. Its declared uses include activation analysis and neutron capture therapy.

Country
United States
City
Upton, NY
Type
Tank
Thermal power
3 MW
Operator
US Department of Energy
Status
Shut down
First criticality
1959
Purpose
Activation analysis, neutron capture therapy

Data: IAEA RRDB · updated on Sep 3, 2026

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