Atomic Energy of Canada Limited

Canadian PHWR nuclear reactor design

company

nuclear research facility located near Chalk River, Canada

nuclear power plant

Canadian third generation nuclear reactor design

thumb|right|NRX and ZEEP buildings, Chalk River Laboratories, 1945. The Ottawa River is behind the reactor buildings. The ZEEP (Zero Energy Experimental Pile) reactor was a nuclear reactor built at the Chalk River Laboratories near Chalk River, Ontario, Canada (which superseded the Montreal Laboratory for nuclear research in Canada). ZEEP first went critical at 15:45 on September 5, 1945. ZEEP was the first operational nuclear reactor outside the United States. == History == The reactor was designed by Canadian, British and French scientists as a part of an effort to produce plutonium for nuc

fromer Ontario nuclear plant

NRX (National Research Experimental) was a heavy-water-moderated, light-water-cooled, nuclear research reactor at the Canadian Chalk River Laboratories, which came into operation in 1947 at a design power rating of 10 MW (thermal), increasing to 42 MW by 1954. It was Canada's most expensive science facility and the world's most powerful nuclear research reactor at its construction. NRX was remarkable for its heat output and the number of free neutrons it generated. In the late 1940s, the NRX reactor had the highest neutron flux in the world: 10–20 times that of a graphite reactor of comparable