出典:Wikipedia
出典:『Wikipedia』 (2011/06/15 06:12 UTC 版)
The B Reactor at the Hanford Site, near Richland, Washington, USA, was the first large scale nuclear reactor ever built. The project was commissioned to produce plutonium-239 by nuclear fission as part of the Manhattan Project, the United States nuclear weapons development program during World War II. The B reactor was fueled with metallic natural uranium, graphite moderated, and water cooled. It has been designated a U.S. National Historic Landmark since August 19, 2008.