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United States United States · Idaho Falls, ID · 43.533, -112.945 (approximate location)

NRAD

NRAD, a research reactor (tRIGA) in Idaho Falls, ID, United States, with 250 kW of thermal power, operated by Argonne National Laboratory. Operating, first critical in 1977.

It is one of the 48 research reactors operating in the United States. It went critical 35 years after the first research reactor in the United States, CP-1, Chicago Pile 1 (1942). It is one of 36 TRIGA reactors operating worldwide, spread across 17 countries. It is one of 65 research reactors in 20 countries that General Atomics designed or built.

Country
United States
City
Idaho Falls, ID
Type
TRIGA
Thermal power
250 kW
Operator
Argonne National Laboratory
Design and construction
Designed by General Atomics
Status
Operating
First criticality
1977
Purpose
Neutron radiography

Data: IAEA RRDB · updated on Sep 3, 2026

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