Atomic Energy of Canada Limited


The National Research Experimental Reactor (NRU) shuts down unexpectedly, putting the spotlight on AECL’s role in the production and supply of medical isotopes

On May 15, 2009, a heavy-water leak was detected within the NRU facility. At the time, the reactor was quietly producing 30 per cent of the world’s supply of a key medical isotope used in the treatment and diagnostic of cancer and other diseases, Molybdenum-99m. The shutdown left researchers and medical professionals searching for supply from the world’s four other producing reactors, before the NRU was put back in service in March 2010.