March 31 signs the final shutdown of the National Research Universal Reactor at Chalk River, Ontario.
NRU played for a long time an important role for the development and success of neutron instrumentation and methods. NRU has been one of the major centres for the development of neutron beam techniques. Bertram Brockhouse received his Nobel prize for the development of neutron spectroscopy techniques with his work at Chalk River. NRU reactor so far produced about 1/3 of world medical isotopes and almost half of the North American supply. The contribution of Chalk River research reactor will remain on the annals of science. [More]