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United States United States · Idaho Falls, ID · 43.586, -112.965

ATRC

ATRC, a research reactor (pool) in Idaho Falls, ID, United States, with 5 kW of thermal power, operated by Bechtel BWXT Idaho, LLC. Operating, first critical in 1964.

It is one of the 48 research reactors operating in the United States. It went critical 22 years after the first research reactor in the United States, CP-1, Chicago Pile 1 (1942). It is one of 48 pool-type reactors operating worldwide, spread across 28 countries. Its declared uses include materials testing.

Country
United States
City
Idaho Falls, ID
Type
Pool
Thermal power
5 kW
Operator
Bechtel BWXT Idaho, LLC
Status
Operating
First criticality
1964
Purpose
Materials testing

Data: IAEA RRDB · updated on Sep 3, 2026

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