Advanced Test Reactor Overhaul Complete; System Testing Underway to Resume Normal Operations

Home / Articles / External Government

Idaho National Laboratory
Idaho National Laboratory

April 4, 2022 | Originally published by Idaho National Laboratory on March 21, 2022

Workers at Idaho National Laboratory’s Advanced Test Reactor (ATR) have completed an 11-month outage for a core overhaul that occurs about every 10 years to maintain peak performance. During the overhaul, operators and maintenance teams replaced components that wear out over time — akin to rebuilding the engine of a high-performance car.  

ATR is the world’s largest, most powerful, and flexible materials test reactor. Its distinctive cloverleaf core design provides a range of capabilities that no other can match. The new core components make it possible to continue ATR’s strategic and scientific research missions for another decade or more.

Focus Areas

Want to find out more about this topic?

Request a FREE Technical Inquiry!