WWII’S HANFORD REACTOR SECRET: How 1,200 Tons of Graphite Made Plutonium

Описание: During World War II, American engineers faced one of the most complex technical challenges in military history: how to create a controlled nuclear chain reaction capable of producing plutonium-239 on an industrial scale. The solution became one of the Manhattan Project’s most extraordinary engineering achievements—the construction of the Hanford B-Reactor, a 1,200-ton graphite cube built block by block in the desert of Washington State.
This 28×36-foot graphite moderator wasn’t just a structure; it was a precision instrument. Engineers from DuPont and the U.S. Army Corps of Engineers machined tens of thousands of graphite bricks to exact tolerances, drilled thousands of aluminum process tubes, and aligned every channel to maintain uniform neutron flux. Their goal was simple yet unprecedented: convert uranium-238 into plutonium-239 efficiently, safely, and reliably during wartime conditions.
This documentary explores the wartime engineering behind reactor moderation, cooling, neutron absorption control, and the chemical separation systems that followed. These innovations reshaped military engineering, nuclear physics, and wartime technology—and the reactor’s lessons in material behavior, thermal expansion, and emergency cooling still inform modern reactor design and engineering education today.
Understanding the Hanford B-Reactor is not just learning history; it’s studying one of the greatest demonstrations of technical problem-solving under pressure.
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